The Boss Katana-50 MkII is a hugely versatile 50-watt modelling guitar combo designed to cover everything from clean practice tones to saturated modern high-gain sounds in one compact amplifier.

Built around Boss's Tube Logic design approach, the Katana-50 MkII combines five core amp characters with selectable variations, a custom 12" speaker, extensive onboard effects and flexible power scaling. It works equally well as a home practice amp, rehearsal combo, recording tool or compact gigging amplifier, making it one of the most practical choices for players who want a wide range of sounds without building a large pedalboard.

This Pre-Owned example is in Very Good condition.

AT A GLANCE

Detail	Specification
Brand	Boss
Model	Katana-50 MkII
Type	Modelling Guitar Combo
Output	50W
Speaker	1x12" Custom Boss
Amp Characters	5 + Variations
Condition	Very Good / Pre-Owned

PRE-OWNED CONDITION REPORT

This is a Pre-Owned Boss Katana-50 MkII in Very Good condition.

The Very Good condition grade reflects an amplifier that has been well cared for overall while showing the light signs of previous use expected from a Pre-Owned item.

KEY FEATURES

• 50W modelling guitar combo

• Custom 12" Boss speaker

• Boss Tube Logic design

• Five core amp characters

• Variation mode for each amp character

• Acoustic guitar amplifier setting

• Five simultaneous effects categories

• Booster, Mod, FX, Delay and Reverb

• 0.5W, 25W and 50W Power Control

• Boss Tone Studio compatibility

• USB audio recording

• Headphone / recording output

• Power Amp In

• Aux input

• Tone Setting memories

• Optional footswitch and expression pedal support

• Very Good Pre-Owned condition

WHY YOU'LL LOVE IT

The Katana-50 MkII is exceptionally flexible without feeling difficult to use. The front panel works like a conventional guitar amp, giving you dedicated Gain, EQ, Volume, effects and Master controls, so it is easy to dial in a usable sound without connecting a computer.

For players who want to go deeper, Boss Tone Studio opens up a much larger library of effects, routing choices and detailed parameters. That means the Katana can grow with the player: straightforward enough for a beginner, but flexible enough for experienced guitarists who want to build and save more detailed sounds.

DETAILED FEATURES & BENEFITS

50-Watt Tube Logic Power

The Katana-50 MkII uses Boss's Tube Logic design approach to provide a responsive playing feel across clean, crunch and high-gain sounds. Its 50-watt output gives it enough authority for rehearsals and suitable live settings, while the dedicated Power Control makes it easy to reduce overall output for quieter practice.

Five Amp Characters with Variations

The amplifier includes Acoustic, Clean, Crunch, Lead and Brown amp characters, each with an additional Variation setting. This effectively doubles the core tonal palette and covers everything from clean rhythm sounds and bluesy breakup to hard rock and high-gain lead tones.

Five Simultaneous Effects Categories

The MkII version expands the onboard processing to five dedicated effects sections: Booster, Mod, FX, Delay and Reverb. These can be used together, giving the player access to a broad pedalboard-style setup without needing multiple external effects units.

Power Control

The Power Control offers 0.5W, 25W and 50W settings, plus Standby. This makes the Katana particularly practical for players who need one amplifier to work in different environments, from bedroom practice through to rehearsal and performance use.

Custom 12" Speaker

The built-in 12" Boss speaker is designed to handle the Katana's broad range of clean, driven and effect-heavy sounds. Compared with smaller practice amplifiers, the larger speaker helps provide a fuller, more substantial response.

Boss Tone Studio

Connecting the amp to a computer via USB gives access to Boss Tone Studio, where additional effects, deeper parameters, effect routing and saved patches can be edited. This significantly expands the amplifier beyond what is available directly from the front panel.

USB Recording

The Katana-50 MkII can send its processed guitar signal directly to a compatible computer via USB, making it useful for home recording without immediately requiring a separate microphone setup.

Power Amp In

The dedicated Power Amp In allows a modeller or multi-effects processor to feed directly into the Katana's power section. This is useful for players using external digital rigs who want the convenience and projection of a guitar combo without passing through the Katana's normal preamp stage.

WHO IS IT FOR?

The Boss Katana-50 MkII is an excellent choice for beginner, intermediate and experienced guitarists who want a broad range of sounds from one amplifier.

Beginners benefit from its straightforward front-panel controls and built-in effects, while more advanced players can use Boss Tone Studio to create more detailed patches and effect chains.

It is also particularly well suited to players covering multiple styles, guitar teachers, home-recording musicians and anyone who wants one compact amplifier for practice, rehearsal and occasional live use.

PLAYING STYLES & APPLICATIONS

The Katana-50 MkII can comfortably cover blues, pop, indie, classic rock, hard rock, punk, alternative, metal, progressive styles, ambient guitar and clean contemporary tones.

The Clean and Crunch modes work particularly well for traditional rhythm sounds and pedal-style drive, while Lead and Brown provide progressively heavier gain for hard rock and metal.

The dedicated Acoustic mode also allows a compatible electro-acoustic guitar to be amplified through the same combo.

HOW IT COMPARES

Boss Katana-50 MkII vs Basic Practice Amp

Compared with a simple practice amplifier, the Katana-50 MkII offers substantially more tonal flexibility, greater output, a 12" speaker, built-in effects, memory locations and computer editing. It is a strong step up for players who have outgrown a small entry-level combo.

Boss Katana-50 MkII vs Katana-50 MkI

The MkII expands on the original Katana with additional amp variations, five simultaneous effects categories and the Power Amp In connection. It retains the straightforward layout of the first generation while offering a broader range of tones and routing options.

Boss Katana-50 MkII vs Valve Combo

A traditional valve amplifier usually focuses on a smaller number of core sounds and natural valve behaviour. The Katana instead prioritises flexibility, built-in effects, power scaling and recording functionality, making it a more versatile all-in-one solution for players covering different styles.

PRODUCT SPECIFICATIONS

Specification	Details
Product Type	Modelling Guitar Combo Amplifier
Brand	Boss
Model	Katana-50 MkII
Rated Output	50W
Speaker	1x12" Custom Boss
Speaker Size	30cm / 12"
Amp Characters	Acoustic, Clean, Crunch, Lead, Brown
Variation	Available for Each Amp Character
Effects Categories	Booster, Mod, FX, Delay, Reverb
Simultaneous Effects	Up to 5 Categories
EQ	Bass, Middle, Treble
Gain Control	Yes
Master Volume	Yes
Power Control	Standby / 0.5W / 25W / 50W
Tone Setting Memories	CH1, CH2
Guitar Input	1/4"
Aux Input	3.5mm Stereo
Power Amp In	1/4"
Recording / Headphone Output	1/4" Stereo
USB	USB-B
Foot Control Connection	EXP Pedal / CTL CH1/CH2
Software	Boss Tone Studio Compatible
Width	470mm
Depth	238mm
Height	398mm
Weight	Approx. 25.6 lbs
Condition	Very Good / Pre-Owned

POWER REQUIREMENTS

The Boss Katana-50 MkII is a mains-powered amplifier.

Its rated power consumption is approximately 47W.

FAIR DEAL MUSIC EXPERT VERDICT ★★★★★

Best suited for: Players who want one flexible amplifier for home practice, rehearsal, recording and a wide range of musical styles.

Customers usually upgrade from: Small 10W–20W practice amplifiers, entry-level modelling combos and basic solid-state guitar amps.

Most commonly paired with: Electric guitars of virtually any style, external footswitches, expression pedals, USB recording setups and additional drive or modulation pedals.

Our tip: Start by learning the five main amp characters directly from the front panel before diving into Boss Tone Studio. The Katana already covers a huge range of usable sounds without software, and Tone Studio becomes much easier to navigate once you understand the core amplifier controls.

Showroom feedback: The Katana-50 MkII remains an especially practical choice for players who need versatility. It can cover convincing clean, crunch and high-gain sounds, while the Power Control makes its 50-watt output much easier to manage at home.

WHY BUY PRE-OWNED FROM FAIR DEAL MUSIC?

Buying a Pre-Owned Boss Katana-50 MkII can provide excellent value for a player who wants a versatile modelling amplifier with enough output for much more than basic home practice.

This example is in Very Good condition, making it a strong option for players looking for a well-kept working amplifier at a Pre-Owned price.

Fair Deal Music has decades of experience buying, selling and part-exchanging amplifiers, guitars, effects and other musical equipment.

WHY BUY FROM FAIR DEAL MUSIC?

When you buy from Fair Deal Music, you're choosing one of the UK's most established, independent family run music retailers since 1987.

Fair Deal Music combines a large Birmingham showroom with nationwide ecommerce and knowledgeable musician-led advice, helping customers choose equipment that genuinely suits their playing style and requirements.

Customers benefit from:

• Family-run independent retailer established in 1987

• Birmingham's largest independent music store

• 6,000+ Trustpilot reviews

• Knowledgeable musician-led advice

• Extensive experience with new and Pre-Owned amplifiers

• Large Birmingham showroom

• Secure online ordering

• Fast UK delivery

• Friendly customer support

• Part-exchange and trade-in service

Trade In. Trade Up. Save More.

Your current amplifier, guitar or other musical equipment could help towards the cost of this Boss Katana-50 MkII.

Fair Deal Music buys and part-exchanges guitars, basses, amplifiers, pedals, keyboards and a wide range of other musical equipment.

Contact our team for a no-obligation valuation and find out what your existing gear could be worth.

PART EXCHANGE / TRADE-IN

If you already own an amplifier or other equipment that you are considering replacing, Fair Deal Music can assess it for part exchange against this Boss.

Trading in can remove the inconvenience of selling privately while allowing the value of your current equipment to go directly towards your next purchase.

Trade In. Trade Up. Save More.

Contact Fair Deal Music for a no-obligation valuation.

FREQUENTLY ASKED QUESTIONS

Is this Boss Katana-50 MkII used?

Yes. This is a Pre-Owned Boss Katana-50 MkII in Very Good condition.

How powerful is the Katana-50 MkII?

It produces up to 50 watts through its built-in 12" speaker.

What speaker does it have?

It uses a custom Boss 12" speaker.

What amp sounds are included?

The five main amp characters are Acoustic, Clean, Crunch, Lead and Brown, with an additional Variation available for each.

Does it have built-in effects?

Yes. It includes dedicated Booster, Mod, FX, Delay and Reverb sections.

Can multiple effects be used together?

Yes. The MkII design allows all five effects categories to be used simultaneously.

Can I use it quietly at home?

Yes. The Power Control includes a 0.5W setting, making it much easier to use at lower volume.

What other power settings are available?

The amplifier can be set to 0.5W, 25W or 50W.

Does it work with Boss Tone Studio?

Yes. Connecting it to a compatible computer provides access to Boss Tone Studio for deeper editing and additional effects options.

Can I record with the Katana-50 MkII?

Yes. Its USB connection allows processed guitar audio to be sent directly to compatible recording software.

Does it have a headphone output?

Yes. The REC OUT / PHONES connection can be used for headphone practice.

Does it have an aux input?

Yes. A stereo Aux input allows compatible external audio devices to be connected for backing tracks and practice.

What is Power Amp In for?

Power Amp In allows an external modeller or multi-effects processor to feed directly into the Katana's power section.

Can I connect a footswitch?

Yes. Compatible Boss footswitches can be connected for channel control.

Does it support an expression pedal?

Yes. Compatible expression pedals can be connected through the EXP PEDAL / CTL input.

Is it suitable for rehearsal?

Yes. Its 50-watt output and 12" speaker make it suitable for many rehearsal situations.

Is it suitable for gigs?

It can work well for suitable live environments, depending on the required stage volume, band and venue setup.

How much does it weigh?

The Katana-50 MkII weighs approximately 25.6 lbs.

Can I part-exchange my current amplifier?

Yes. Fair Deal Music considers amplifiers, guitars, pedals and many other types of musical equipment for part exchange.