{"product_id":"marshall-jh-1-jackhammer-overdrive-distortion-pedal-used","title":"Marshall JH-1 Jackhammer Overdrive \u0026 Distortion Pedal, (Used)","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMarshall JH-1 Jackhammer\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a powerful and versatile guitar effects pedal combining classic Marshall overdrive with aggressive, high-gain distortion in one robust metal enclosure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDesigned to capture the unmistakable character of Marshall amplification, the Jackhammer delivers everything from crunchy British rock rhythms to heavily saturated distortion and sustaining lead guitar tones.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFeaturing two selectable operating modes — \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eOverdrive and Distortion\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e — the JH-1 offers an impressive range of gain sounds suitable for classic rock, hard rock, heavy metal and alternative music.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eOverdrive mode\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is designed to recreate the dynamic crunch and powerful response associated with traditional Marshall amplifiers, while the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDistortion mode\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides increased saturation, compression and sustain for heavier playing styles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOne of the pedal's greatest strengths is its extensive EQ section.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike conventional distortion pedals with a single Tone control, the Jackhammer features independent \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eBass and Treble controls\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, alongside Marshall's distinctive \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eContour and Contour Frequency controls\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThese allow guitarists to shape the midrange response, moving from thick, punchy rock tones to aggressive scooped sounds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCombined with the Gain and Volume controls, the Jackhammer offers considerable flexibility for adapting its sound to different guitars, amplifiers and musical styles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts heavy-duty metal enclosure, traditional Marshall styling and straightforward footswitch make it a practical choice for rehearsals, recording and live performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThis particular Marshall JH-1 Jackhammer is presented in Very Good Pre-Owned Condition\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, showing some cosmetic wear consistent with careful previous ownership.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNo power supply is included.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The pedal can be operated using a suitable regulated 9V DC centre-negative adaptor or a standard 9V battery.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor guitarists seeking powerful British-inspired overdrive and distortion with detailed tonal control, the Marshall Jackhammer remains a compelling choice.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eAt A Glance\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eDetail\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eInformation\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMarshall\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eJH-1 Jackhammer\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eEffect Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOverdrive \/ Distortion\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOperating Modes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOverdrive \u0026amp; Distortion\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eControls\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGain, Volume, Bass, Treble, Contour, Contour Frequency\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e9V DC Centre-Negative \/ 9V Battery\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCondition\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVery Good – Pre-Owned\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Supply\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Included\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003ePre-Owned Condition Report\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eVery Good Condition\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThis \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMarshall JH-1 Jackhammer Overdrive \u0026amp; Distortion Pedal\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is presented in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eVery Good Pre-Owned Condition\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, indicating some cosmetic wear consistent with careful previous ownership.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe pedal features its distinctive Marshall metal enclosure, dual-concentric control arrangement and traditional footswitch.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlease study the accompanying product photographs carefully for an accurate assessment of the individual cosmetic condition, including the enclosure, controls, footswitch and connection sockets.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePower Supply Not Included\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eThis pedal is supplied without a power supply.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt can be operated using a regulated \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e9V DC centre-negative adaptor\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e or a standard 9V PP3 battery.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA compatible isolated pedalboard power supply can also be used.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eWhat's Included\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003eMarshall JH-1 Jackhammer Overdrive \u0026amp; Distortion Effects Pedal\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNot Included:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Power Supply.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-spread=\"false\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eClassic Marshall Overdrive \u0026amp; Distortion:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Two versatile gain modes in one pedal.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOverdrive Mode:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Dynamic, crunchy British amplifier-inspired tones.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDistortion Mode:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Higher-gain saturation with additional compression and sustain.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eGain Control:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Adjusts the amount of overdrive or distortion.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVolume Control:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Sets the pedal's output level.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIndependent Bass \u0026amp; Treble:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Detailed tonal adjustment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eContour Control:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Adjusts the amount of midrange scoop.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eContour Frequency Control:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Selects the frequency range affected by the contour circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDual-Concentric Controls:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Extensive adjustment without an oversized enclosure.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eClassic Rock Crunch:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Excellent for traditional British rock sounds.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHigh-Gain Distortion:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Suitable for hard rock and metal.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eExpressive Lead Tones:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Rich saturation and sustain.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePassive Bypass:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Straightforward signal routing when disengaged.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHeavy-Duty Metal Enclosure:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Durable construction.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStatus LED:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Clear indication when the effect is active.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eStandard ¼-Inch Input \u0026amp; Output:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Easy pedalboard integration.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e9V Battery Operation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Convenient standalone power option.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003e9V DC Centre-Negative Power:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compatible with suitable pedalboard supplies.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eVery Good Pre-Owned Condition:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e An attractive alternative to purchasing new.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cspan\u003eWhy You'll Love It\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe Marshall JH-1 Jackhammer delivers the unmistakable character of British rock amplification in a compact and versatile effects pedal.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts two operating modes make it particularly appealing to guitarists who want both traditional overdrive and heavier distortion without using multiple pedals.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn Overdrive mode, the Jackhammer produces crunchy, responsive tones that work particularly well for classic rock and blues-influenced playing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSwitching to Distortion mode introduces greater saturation and sustain, allowing the pedal to deliver powerful hard rock rhythms and aggressive lead sounds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe dedicated EQ section is another major attraction.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith independent Bass and Treble controls, players can adjust the low- and high-frequency response to suit their guitar and amplifier.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Contour circuit provides additional flexibility, allowing the midrange to be shaped for everything from traditional rock crunch to heavily scooped metal tones.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts robust metal enclosure and traditional Marshall styling complete a pedal that is equally at home in a rehearsal room, recording studio or on stage.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eDetailed Features \u0026amp; Benefits\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eClassic Marshall-Inspired Gain\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe JH-1 Jackhammer was developed to offer the powerful overdrive and distortion sounds associated with Marshall amplification. Its responsive gain circuit provides rich harmonic saturation, strong attack and the aggressive character that has helped define decades of rock guitar. Whether used with a clean amplifier or to add further gain to an already driven sound, the Jackhammer offers considerable flexibility.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eOverdrive Mode\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Overdrive mode is designed around the dynamic response and crunchy character of traditional Marshall amplifier tones. It offers a broad range of gain, from relatively restrained breakup to powerful rock overdrive. This mode is particularly effective for classic rock rhythm guitar, blues-rock and expressive lead playing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDistortion Mode\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Distortion mode increases the amount of saturation and compression, producing a heavier sound with greater sustain. This makes it particularly suitable for hard rock, heavy metal and aggressive rhythm guitar. The additional gain allows the pedal to create thick power chords and sustaining lead tones while retaining useful tonal adjustment.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eGain Control\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Gain control adjusts the amount of saturation produced by the selected mode. Lower settings provide a more open, dynamic response, while increasing Gain introduces thicker distortion and longer sustain. Its broad adjustment range allows players to tailor the pedal to different guitars and amplifier setups.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eVolume Control\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Volume control adjusts the pedal's output level, allowing the effected signal to be balanced against the bypassed guitar sound. It can also be used to send a stronger signal into an amplifier, depending on the selected gain settings. This makes it useful for both rhythm and lead applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIndependent Bass Control\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Bass control adjusts the low-frequency response of the pedal. Higher settings create a fuller, heavier sound suitable for rock and metal, while lower settings help tighten the response and improve definition. This is particularly useful when using guitars with higher-output humbuckers or amplifiers that already produce substantial bass.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eIndependent Treble Control\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Treble control adjusts the high-frequency character, allowing players to move between darker, smoother distortion and brighter, more cutting sounds. It is especially useful for matching the Jackhammer to different guitar pickups and amplifiers.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMarshall Contour Control\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eOne of the Jackhammer's defining features is its Contour control, inspired by the EQ circuitry used in Marshall's Valvestate amplifiers. It adjusts the amount of midrange reduction applied to the guitar signal. At minimum, the contour circuit is bypassed, retaining a more traditional midrange-forward sound. Increasing the control creates a more pronounced scoop for aggressive modern guitar tones.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eContour Frequency Control\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Contour Frequency control adjusts the frequency range affected by the Contour circuit. This allows players to determine which part of the midrange is reduced, creating a wide selection of tonal characteristics. Combined with the Bass and Treble controls, it makes the Jackhammer considerably more flexible than a conventional three-knob distortion pedal.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDual-Concentric Control Design\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe JH-1 uses stacked rotary controls to provide extensive tonal adjustment without requiring a particularly large enclosure. This arrangement makes it possible to incorporate Gain, Volume, Bass, Treble, Contour and Contour Frequency controls into a compact pedal design.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eExcellent for Classic Rock\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Overdrive mode is particularly well suited to classic British rock guitar. Its crunchy response and strong midrange character provide an excellent foundation for power chords, expressive rhythm playing and melodic solos. The dedicated EQ controls allow the sound to be tailored to a range of amplifier types.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003ePowerful for Hard Rock \u0026amp; Metal\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eSwitching to Distortion mode provides the additional gain and compression required for heavier musical styles. The Contour circuit is especially useful for exploring scooped high-gain sounds, while the Bass and Treble controls help maintain the desired balance of low-frequency weight and high-frequency attack.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eExpressive Lead Guitar\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Jackhammer's saturation and sustain make it a useful choice for lead guitar. Higher Gain settings create a smooth, compressed response that supports long melodic notes, while the Contour and Treble controls allow players to find a sound that cuts through the mix.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eDurable Marshall Metal Construction\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe JH-1 features a sturdy metal enclosure designed for regular pedalboard use. Its traditional footswitch, robust controls and standard jack connections provide straightforward operation for rehearsals, recording and live performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWho Is It For?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eClassic Rock Guitarists:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Traditional Marshall-inspired crunch and sustain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHard Rock Players:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Powerful distortion with detailed tonal adjustment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMetal Guitarists:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e High-gain sounds and adjustable midrange scoop.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBlues-Rock Musicians:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Responsive overdrive and expressive lead tones.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMarshall Enthusiasts:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Familiar British gain character in pedal format.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRecording Guitarists:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Two gain modes and flexible EQ for different arrangements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePedalboard Enthusiasts:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Overdrive and distortion in one versatile unit.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003ePlaying Styles \u0026amp; Applications\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe Marshall JH-1 Jackhammer is particularly suited to classic rock, hard rock, heavy metal, blues-rock, punk, alternative and contemporary guitar music.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts Overdrive mode provides the crunchy response associated with traditional British amplifier sounds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Distortion mode offers additional saturation for heavier rhythms and sustaining leads.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Contour controls allow players to explore different midrange responses, making the pedal particularly effective when matching the sound to different guitars and amplifiers.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eHow It Compares\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eMarshall Jackhammer vs Marshall Bluesbreaker Pedal\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Marshall Bluesbreaker focuses on lower-gain, dynamic overdrive inspired by vintage valve amplifiers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Jackhammer provides a broader range of gain, including a dedicated high-gain Distortion mode.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlayers seeking subtle breakup may prefer the Bluesbreaker, while those wanting aggressive rock and metal sounds may favour the Jackhammer.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMarshall Jackhammer vs Marshall Guv'nor\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Marshall Guv'nor is another classic Marshall distortion pedal, celebrated for its British amplifier-inspired sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Jackhammer expands upon this concept with two selectable gain modes and a more extensive EQ section featuring adjustable Contour and Contour Frequency controls.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis makes the Jackhammer particularly appealing to musicians seeking additional tonal flexibility.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eMarshall Jackhammer vs Boss DS-1\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Boss DS-1 is a straightforward distortion pedal featuring Tone, Level and Distortion controls.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Marshall Jackhammer offers two operating modes and significantly more detailed EQ adjustment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePlayers seeking a simple distortion sound may appreciate the DS-1, while those wanting broader gain options and midrange shaping may prefer the JH-1.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eMarshall Effects Pedal Heritage\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eSince its founding in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e1962\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, Marshall has played a defining role in the development of rock guitar amplification.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts amplifiers helped establish the powerful, harmonically rich sounds associated with generations of influential guitarists.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAlongside its amplifier range, Marshall developed a selection of compact effects pedals designed to capture elements of its distinctive tonal character.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe JH-1 Jackhammer emerged as one of the company's versatile drive pedals, combining traditional overdrive with more aggressive distortion.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts extensive EQ section, influenced by Marshall's Valvestate amplifier technology, made it particularly interesting to guitarists seeking detailed control over their gain sounds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Jackhammer remains a popular pre-owned choice for musicians who appreciate classic Marshall styling and powerful British-inspired distortion.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003chr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eProduct Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGuitar Effects Pedal\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMarshall\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eJH-1 Jackhammer\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eEffect Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOverdrive \/ Distortion\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSignal Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAnalogue\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eModes\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOverdrive, Distortion\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eMode Selector\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eO\/D \/ DIST\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eControls\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGain, Volume, Bass, Treble, Contour, Contour Frequency\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eEQ\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eBass, Treble \u0026amp; Adjustable Midrange Contour\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eSwitching\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFootswitch On\/Off\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBypass\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003ePassive\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eIndicator\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eOn\/Off LED\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e¼\" Mono Jack\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eOutput\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e¼\" Mono Jack\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eInput Impedance\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1MΩ\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eRecommended Output Load\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUnder 20kΩ\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Requirements\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e9V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDC Polarity\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCentre-Negative\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCurrent Consumption\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e13mA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eBattery Operation\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1 × 9V PP3 Battery\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eDimensions\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e120 × 65 × 55mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eManufacturer Weight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e510g\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eEnclosure\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMetal\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003eCondition\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eVery Good – Pre-Owned\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003ePower Supply\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNot Included\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003e\u003cspan\u003ePower Requirements\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMarshall JH-1 Jackhammer requires regulated 9V DC centre-negative power\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt can be powered using either a suitable 9V DC adaptor or a standard 9V PP3 battery.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCurrent Consumption:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 13mA.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA compatible isolated pedalboard power supply can also be used, provided it delivers the correct voltage, polarity and sufficient current.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eNo power supply is included with this pedal.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFair Deal Music Expert Verdict\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eMarshall JH-1 Jackhammer\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is an excellent choice for guitarists seeking classic Marshall-inspired overdrive and aggressive distortion in one versatile pedal.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts two selectable gain modes provide everything from traditional British rock crunch to heavily saturated high-gain sounds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe extensive EQ section is its greatest advantage, offering independent Bass and Treble controls alongside adjustable midrange Contour and Contour Frequency.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis makes the Jackhammer particularly effective for players who want to tailor their distortion to different guitars, amplifiers and musical styles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIts sturdy metal enclosure and traditional Marshall character complete an appealing pre-owned pedal.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis particular example is presented in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eVery Good Pre-Owned Condition\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and is supplied \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ewithout a power supply\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eBest Suited For:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Classic rock, hard rock, heavy metal, blues-rock and musicians seeking versatile gain sounds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCustomers Usually Upgrade From:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Basic overdrive pedals, entry-level distortion pedals and simple amplifier-only gain setups.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMost Commonly Paired With:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Marshall, Orange, Blackstar and other rock-oriented amplifiers, noise gates, delay and reverb.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOur Tip:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e For classic Marshall crunch, select Overdrive mode and begin with the Contour control fully anticlockwise. Increase Gain gradually, then use Bass and Treble to match the pedal to your amplifier. For heavier sounds, switch to Distortion mode and experiment with the Contour circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eShowroom Advice:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The Jackhammer's Contour section makes a significant difference to its sound. Keep it low for traditional midrange-rich rock tones, or increase it for a more scooped, aggressive response.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Buy Pre-Owned From Fair Deal Music?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eBuying a pre-owned Marshall JH-1 Jackhammer from Fair Deal Music provides an opportunity to own a versatile Marshall overdrive and distortion pedal at an attractive alternative to purchasing new.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOur experienced team understands the importance of clear condition descriptions, accurate specifications and transparent information about included accessories.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis particular pedal is presented in \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eVery Good Pre-Owned Condition\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e and is supplied \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003ewithout a power supply\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWarranty, Returns \u0026amp; Delivery\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThis is a pre-owned effects pedal, with its condition and included accessories detailed above.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eApplicable warranty and returns arrangements are governed by Fair Deal Music's current terms, with available UK delivery and showroom collection options provided at checkout.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eWhy Buy From Fair Deal Music?\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eWhen you buy from Fair Deal Music, you're choosing one of the UK's most established, independent family run music retailers since 1987.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBased in Birmingham, Fair Deal Music specialises in new, used, vintage and collectable guitars, basses, amplifiers, effects pedals, keyboards and professional audio equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOur experienced team of musicians provides knowledgeable advice and personal service, helping customers find equipment suited to their musical requirements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCustomers benefit from competitive pricing, UK delivery options, our Birmingham showroom and part-exchange services.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003ePart Exchange – Trade In. Trade Up. Save More.\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eFair Deal Music buys and part-exchanges a wide range of musical equipment, including guitar effects pedals, electric guitars, basses, amplifiers and professional audio equipment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYour existing equipment could help towards the cost of this Marshall JH-1 Jackhammer.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhat condition is this Marshall Jackhammer in?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt is presented in Very Good Pre-Owned Condition, indicating some cosmetic wear consistent with careful previous ownership.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDoes the pedal come with a power supply?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNo. A power supply is not included.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCan it run on a battery?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes. The JH-1 accepts a standard 9V PP3 battery.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhat power supply does it require?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA regulated 9V DC centre-negative adaptor.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHow much current does it draw?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e13mA.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIs the Marshall Jackhammer an overdrive or distortion pedal?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBoth. It features separate Overdrive and Distortion modes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhat is the model number?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eJH-1.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhat controls does it have?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGain, Volume, Bass, Treble, Contour and Contour Frequency, plus a Mode selector.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhat does Overdrive mode do?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt produces dynamic, crunchy sounds inspired by traditional Marshall amplifier overdrive.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhat does Distortion mode do?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt provides higher-gain saturation with increased compression and sustain.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhat does the Gain control do?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt adjusts the amount of overdrive or distortion.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhat does the Volume control do?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt adjusts the pedal's output level.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhat do the Bass and Treble controls do?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThey adjust the low- and high-frequency response.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhat is the Contour control?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt adjusts the amount of midrange reduction applied to the sound.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eWhat does Contour Frequency do?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIt selects the frequency range affected by the Contour circuit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCan the Contour circuit be bypassed?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes. Turning the Contour control fully anticlockwise bypasses the contour section.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eIs the Jackhammer suitable for metal?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes. Its Distortion mode and adjustable midrange scoop make it particularly suitable for heavier music.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCan it produce classic rock tones?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes. Overdrive mode is designed to provide traditional Marshall-inspired crunch.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDoes it work with humbucker pickups?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes. The Jackhammer can be used with both humbucking and single-coil guitars.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCan it be used with a valve amplifier?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes. It works with valve and solid-state amplifiers.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDoes it have true bypass?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMarshall describes its bypass arrangement as passive bypass.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCan it be combined with other effects?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes. It works with delay, reverb, modulation, noise gates and other gain pedals.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCan I use it with an isolated pedalboard power supply?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes, provided the output supplies regulated 9V DC centre-negative power with sufficient current.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCan I part-exchange another pedal towards this Marshall Jackhammer?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYes. Fair Deal Music considers selected effects pedals and other musical equipment for part exchange.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"USED","offers":[{"title":"Default Title","offer_id":58176669024636,"sku":"Marshall JH-1 Jackhammer Overdrive \u0026 Distortion Pedal, (Used)","price":19.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0441\/6457\/9484\/files\/DSC02924_15877de1-5d8c-4d0a-971f-77c68317e822.jpg?v=1794325032","url":"https:\/\/www.fairdealmusic.co.uk\/products\/marshall-jh-1-jackhammer-overdrive-distortion-pedal-used","provider":"Fair Deal Music","version":"1.0","type":"link"}