Marshall RG-1 Regenerator Multi-Modulation Effects Pedal, (Used)

The Marshall RG-1 Regenerator is a versatile multi-modulation effects pedal combining six classic modulation sounds in one robust, easy-to-use stompbox.

Designed to deliver everything from warm vintage chorus and swirling phaser effects to dramatic flanging and atmospheric vibrato, the Regenerator offers an impressive selection of sounds for guitarists looking to expand their tonal possibilities.

Featuring six individual modulation modes, the RG-1 brings together several of the most popular guitar effects in a single compact unit:

• Vintage Chorus

• Multi Chorus

• Vintage Flanger

• Phaser

• Step Phaser

• Vintage Vibe

Each mode can be adjusted using the dedicated Speed, Depth and Regen controls, allowing players to shape the movement, intensity and character of their modulation.

The Vintage Chorus mode provides warm, shimmering textures suitable for clean rhythm guitar, while Multi Chorus creates a richer, more expansive ensemble effect.

Vintage Flanger delivers sweeping, jet-like modulation, while the Phaser and Step Phaser modes offer everything from smooth, flowing movement to rhythmic, stepped filter effects.

Vintage Vibe completes the selection with classic swirling modulation inspired by vintage guitar effects.

The RG-1 also features stereo outputs, creating wide, spacious effects when connected to two amplifiers, alongside an expression pedal input for real-time control of modulation speed.

Its sturdy metal enclosure and traditional Marshall styling make it a practical choice for both live performance and studio recording.

This particular Marshall RG-1 Regenerator is presented in Very Good Pre-Owned Condition, showing some cosmetic wear consistent with careful previous ownership.

No power supply is included. The pedal can operate using a suitable regulated 9V DC centre-negative adaptor or a standard 9V battery.

For guitarists seeking classic modulation sounds, extensive tonal flexibility and dependable Marshall construction, the RG-1 Regenerator offers an excellent all-in-one solution.

At A Glance

Detail	Information
Brand	Marshall
Model	RG-1 Regenerator
Effect Type	Multi-Modulation
Number of Modes	6
Controls	Mode, Speed, Depth, Regen
Outputs	Stereo
Expression Input	Yes
Power	9V DC / 9V Battery
Condition	Very Good – Pre-Owned
Power Supply	Not Included

Pre-Owned Condition Report

Very Good Condition

This Marshall RG-1 Regenerator is presented in Very Good Pre-Owned Condition, indicating some cosmetic wear consistent with careful previous ownership.

The pedal features its distinctive Marshall metal enclosure, four-control layout and integrated footswitch.

Please study the accompanying photographs carefully for an accurate assessment of its individual cosmetic condition, including the enclosure, controls, footswitch and connection sockets.

Power Supply Not Included

This pedal is supplied without a power supply.

It can be operated using a suitable regulated 9V DC centre-negative adaptor rated for at least 80mA, or a standard 9V PP3 battery.

What's Included

• Marshall RG-1 Regenerator Multi-Modulation Effects Pedal

Not Included: Power Supply.

Key Features

• Six Modulation Effects: Chorus, flanger, phaser and vibe sounds in one pedal.

• Vintage Chorus: Warm, shimmering traditional chorus effects.

• Multi Chorus: Rich, layered ensemble-style modulation.

• Vintage Flanger: Sweeping, dramatic flanging sounds.

• Phaser: Smooth, flowing phase modulation.

• Step Phaser: Rhythmic, stepped filter movement.

• Vintage Vibe: Classic swirling modulation.

• Mode Selector: Convenient access to all six effects.

• Speed Control: Adjusts modulation rate.

• Depth Control: Adjusts modulation intensity.

• Regen Control: Shapes feedback and modulation character.

• Stereo Outputs: Wide, spacious effects for dual-amplifier setups.

• Expression Pedal Input: Real-time control over modulation speed.

• Passive Bypass on Output 1: Preserves the direct signal path when bypassed.

• Spill-Over Output: Alternative output arrangement for modulation tails.

• Solid Metal Enclosure: Durable construction for regular use.

• 9V Battery Operation: Convenient standalone power.

• 9V DC Centre-Negative Compatibility: Suitable for compatible pedalboard supplies.

• Very Good Pre-Owned Condition: An attractive alternative to purchasing new.

Why You'll Love It

The Marshall RG-1 Regenerator is an excellent choice for guitarists who want a wide selection of modulation sounds without needing several individual pedals.

Its six modes cover many of the most useful modulation effects in guitar music, making it particularly versatile for musicians who regularly change styles.

For clean guitar, the Vintage Chorus and Multi Chorus modes add depth, movement and spaciousness.

For classic rock, the Phaser and Vintage Flanger modes deliver the sweeping textures associated with countless influential recordings.

The Step Phaser provides a more unusual, rhythmic character, making it appealing for experimental and alternative music.

Vintage Vibe offers expressive, swirling modulation particularly suited to psychedelic rock and blues-influenced playing.

The dedicated Speed, Depth and Regen controls allow each effect to be adjusted without complicated menus or programming.

Stereo operation adds another dimension, creating a wide sound field when using two amplifiers.

The expression input is also particularly useful for live performance, allowing modulation speed to be adjusted in real time.

Combined with its robust metal enclosure and straightforward operation, the RG-1 provides a practical and inspiring modulation solution.

Detailed Features & Benefits

Six Classic Modulation Modes

The RG-1 Regenerator combines six different modulation effects within a single pedal. Rather than requiring separate chorus, flanger, phaser and vibe pedals, the Regenerator provides immediate access to these sounds through its rotary Mode selector. This makes it particularly convenient for players who want a flexible modulation setup without occupying excessive pedalboard space.

Vintage Chorus

The Vintage Chorus mode recreates the warm, gently moving character associated with traditional guitar chorus effects. At subtle settings, it provides additional depth and shimmer for clean chords and arpeggios. Increasing Speed and Depth introduces more obvious movement, making it suitable for expressive lead guitar and atmospheric rhythm playing.

Multi Chorus

The Multi Chorus mode is based on the character of Marshall's earlier Supervibe effect, providing a richer and more layered modulation sound. Its complex sweeping character creates an expansive ensemble effect that works particularly well for clean guitar, pop, indie and atmospheric music.

Vintage Flanger

The Vintage Flanger mode produces the distinctive sweeping sound associated with traditional flanger pedals. Subtle settings create gentle movement, while stronger modulation and regeneration introduce dramatic jet-like textures. This makes it particularly effective for classic rock, psychedelic music and experimental guitar.

Phaser

The Phaser mode delivers smooth, flowing modulation by sweeping selected frequencies through the guitar signal. Its gentle movement can add warmth and character to clean guitar, while more pronounced settings produce the recognisable swirling textures associated with classic rock and funk.

Step Phaser

The Step Phaser mode introduces a more unusual variation on traditional phasing, creating a stepped sequence of tonal changes rather than a completely smooth sweep. This produces distinctive rhythmic and electronic-sounding textures, making it particularly appealing for alternative, progressive and experimental music.

Vintage Vibe

The Vintage Vibe mode provides rich, swirling modulation inspired by classic vintage effects. Its expressive movement works particularly well for psychedelic rock, blues and atmospheric lead guitar. Adjusting the Speed and Depth controls allows everything from gentle movement to pronounced pulsing modulation.

Speed Control

The Speed control adjusts the rate of modulation across all six modes. Slower settings provide spacious, gradual movement, while faster settings create more animated effects. With a compatible expression pedal connected, the speed can also be varied in real time during performance.

Depth Control

The Depth control adjusts the range and intensity of the selected modulation. Lower settings produce subtle effects that sit naturally behind the original guitar sound, while higher settings create more dramatic changes in pitch or frequency response. Its operation adapts to the selected modulation mode.

Regen Control

The Regen control adjusts the amount of regeneration or feedback within the selected effect. Increasing regeneration emphasises the modulation sweeps, creating more pronounced textures. This is particularly effective with flanger and phaser modes, where additional feedback can produce stronger, more dramatic sounds.

Stereo Output Operation

The RG-1 features two outputs, allowing the pedal to operate in stereo when connected to a suitable dual-amplifier or recording setup. The second output uses an inverted-phase signal to create additional spaciousness. This is particularly effective for chorus and other modulation effects that benefit from a wide sound field.

Expression Pedal Input

A dedicated expression input allows a compatible external expression pedal to control the modulation speed. This enables guitarists to change the movement of an effect while playing, opening up additional possibilities for expressive performance and experimental sound design.

Passive Bypass & Spill-Over Options

The Regenerator offers different bypass behaviour depending on the output used. Output 1 provides passive bypass operation, while Output 2 offers a spill-over arrangement that allows modulation trails to continue when the effect is disengaged. This adds useful flexibility for different amplifier and pedalboard configurations.

Durable Marshall Metal Construction

The RG-1 features a solid metal enclosure, robust control knobs and a substantial footswitch. Its construction reflects Marshall's traditional focus on practical stage equipment, making it suitable for rehearsal rooms, studio setups and regular live use.

Who Is It For?

Classic Rock Guitarists: Traditional phaser, flanger and chorus sounds.

Blues Players: Expressive Vintage Vibe and subtle modulation.

Indie & Alternative Musicians: Spacious chorus and unusual stepped effects.

Psychedelic Rock Guitarists: Swirling phaser and vibe textures.

Progressive Guitarists: Experimental modulation and expression control.

Ambient Musicians: Layered chorus and atmospheric movement.

Stereo Rig Users: Wide modulation effects across two amplifiers.

Pedalboard Enthusiasts: Six useful modulation effects in one unit.

Playing Styles & Applications

The Marshall RG-1 Regenerator is particularly suited to classic rock, psychedelic rock, blues, funk, indie, alternative, progressive and ambient music.

The chorus modes are ideal for adding depth to clean chords and arpeggios.

The Phaser and Vintage Vibe modes work particularly well for vintage-inspired lead guitar.

Vintage Flanger provides sweeping effects suitable for classic rock and experimental playing.

Step Phaser creates more unusual rhythmic textures, while stereo operation allows expansive modulation sounds in dual-amplifier setups.

How It Compares

Marshall RG-1 vs Boss CH-1 Super Chorus

The Boss CH-1 is a dedicated chorus pedal offering detailed control over a single modulation effect.

The Marshall RG-1 provides chorus alongside flanger, phaser, step phaser and vibe modes.

Players seeking a broad range of modulation sounds may prefer the Regenerator, while those primarily interested in traditional chorus may appreciate the dedicated Boss pedal.

Marshall RG-1 vs Boss PH-3 Phase Shifter

The Boss PH-3 focuses on phase modulation, including traditional and more experimental phaser effects.

The Marshall RG-1 offers both conventional and stepped phaser sounds, alongside four additional modulation modes.

The RG-1 is particularly attractive for guitarists seeking an all-in-one modulation pedal rather than a dedicated phaser.

Marshall RG-1 vs Boss MD-200 Modulation

The Boss MD-200 is a modern digital modulation processor featuring a wider selection of effects and additional control options.

The Marshall RG-1 offers a simpler approach, concentrating on six classic modulation sounds with immediate hands-on adjustment.

Players seeking straightforward operation and traditional modulation effects may particularly appreciate the Marshall.

Marshall Effects Pedal Heritage

Marshall is best known for its legendary amplifiers, which have helped shape the sound of rock music since the company's founding in 1962.

Alongside its amplifier range, Marshall developed a series of compact guitar effects pedals designed to complement traditional rock and blues tones.

The RG-1 Regenerator was introduced during the 2000s as part of Marshall's expanded digital effects range.

Alongside pedals such as the Echohead and Reflector, the Regenerator brought versatile effects into robust metal enclosures with straightforward controls.

The RG-1 remains an interesting example of Marshall's approach to effects design, combining several classic modulation sounds with stereo capability and expression control.

Technical Specifications

Specification	Details
Product Type	Guitar Effects Pedal
Brand	Marshall
Model	RG-1 Regenerator
Effect Type	Multi-Modulation
Signal Processing	Digital
Number of Effects	6
Mode 1	Vintage Chorus
Mode 2	Multi Chorus
Mode 3	Vintage Flanger
Mode 4	Phaser
Mode 5	Step Phaser
Mode 6	Vintage Vibe
Controls	Mode, Speed, Depth, Regen
Switching	Footswitch On/Off
Indicator	Effect On/Off LED
Guitar Input	¼" Jack
Expression Input	¼" Jack
Output 1	Left / Bypass
Output 2	Right / Spill
Stereo Operation	Yes
Expression Control	Modulation Speed
Bypass	Passive on Output 1
Input Impedance	1MΩ
Output Load Impedance	Less Than 1kΩ
Power Requirements	9V DC
DC Polarity	Centre-Negative
Minimum Power Supply Current	80mA
Battery Operation	1 × 9V PP3 Battery
Dimensions	120 × 65 × 55mm
Manufacturer Weight	510g
Enclosure	Metal
Condition	Very Good – Pre-Owned
Power Supply	Not Included

Power Requirements

The Marshall RG-1 Regenerator requires regulated 9V DC centre-negative power, with a supply capable of delivering at least 80mA.

It can be powered using either a suitable 9V DC adaptor or a standard 9V PP3 battery.

A compatible isolated pedalboard power supply can also be used, provided the voltage, polarity, connector and current rating are suitable.

No power supply is included with this pedal.

Fair Deal Music Expert Verdict

The Marshall RG-1 Regenerator is an excellent multi-modulation pedal offering six classic effects in a durable, straightforward format.

Its combination of Vintage Chorus, Multi Chorus, Vintage Flanger, Phaser, Step Phaser and Vintage Vibe provides an impressive range of sounds for guitarists who want greater tonal flexibility without using multiple dedicated pedals.

The Speed, Depth and Regen controls make it easy to explore different modulation characteristics, while the stereo outputs and expression input add useful performance options.

The Step Phaser and Vintage Vibe modes are particularly interesting, offering distinctive sounds beyond conventional chorus and flanging.

This particular example is presented in Very Good Pre-Owned Condition and is supplied without a power supply.

Best Suited For: Classic rock, psychedelic rock, indie, alternative, ambient and players seeking versatile modulation effects.

Customers Usually Upgrade From: Basic chorus pedals, entry-level modulation effects and compact multi-effects units.

Most Commonly Paired With: Marshall, Fender, Vox and Orange amplifiers, overdrive pedals, delay and reverb.

Our Tip: Start with Vintage Chorus and moderate Speed and Depth settings for a classic clean guitar sound. For something more experimental, select Step Phaser and gradually increase Regen to emphasise the stepped modulation.

Showroom Advice: The RG-1 is particularly interesting for players wanting several modulation effects without a complicated interface. Its stereo outputs and expression pedal input add flexibility beyond many conventional single-effect pedals.

Why Buy Pre-Owned From Fair Deal Music?

Buying a pre-owned Marshall RG-1 Regenerator from Fair Deal Music offers an opportunity to own a versatile Marshall modulation pedal at an attractive alternative to purchasing new.

Our experienced team understands the importance of accurate condition descriptions, clear technical information and transparent details about included accessories.

This particular pedal is presented in Very Good Pre-Owned Condition and is supplied without a power supply.

Warranty, Returns & Delivery

This is a pre-owned effects pedal, with its condition and included accessories detailed above.

Applicable warranty and returns arrangements are governed by Fair Deal Music's current terms, with available UK delivery and showroom collection options provided at checkout.

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.

Based in Birmingham, Fair Deal Music specialises in new, used, vintage and collectable guitars, basses, amplifiers, effects pedals, keyboards and professional audio equipment.

Our experienced team of musicians provides knowledgeable advice and personal service, helping customers find equipment suited to their musical requirements.

Customers benefit from competitive pricing, UK delivery options, our Birmingham showroom and part-exchange services.

Part Exchange – Trade In. Trade Up. Save More.

Fair Deal Music buys and part-exchanges a wide range of musical equipment, including Marshall effects pedals, guitar amplifiers, electric guitars, basses and professional audio equipment.

Your existing equipment could help towards the cost of this Marshall RG-1 Regenerator.

Frequently Asked Questions

What condition is this Marshall RG-1 in?

It is presented in Very Good Pre-Owned Condition, indicating some cosmetic wear consistent with careful previous ownership.

Does it come with a power supply?

No. A power supply is not included.

Can it run on a battery?

Yes. It accepts a standard 9V PP3 battery.

What power supply does it require?

A regulated 9V DC centre-negative adaptor capable of supplying at least 80mA.

How many effects does the Regenerator have?

Six.

What are the six effects?

Vintage Chorus, Multi Chorus, Vintage Flanger, Phaser, Step Phaser and Vintage Vibe.

Is the Marshall RG-1 analogue or digital?

It uses digital processing to generate its modulation effects.

What controls does it have?

Mode, Speed, Depth and Regen.

What does the Speed control do?

It adjusts how quickly the modulation effect moves.

What does the Depth control do?

It adjusts the intensity or range of the modulation.

What does the Regen control do?

It adjusts the amount of effect regeneration or feedback.

What is the difference between Vintage Chorus and Multi Chorus?

Vintage Chorus provides traditional chorus modulation, while Multi Chorus creates a richer, more complex ensemble-style effect.

What is Step Phaser?

A phaser mode that produces stepped tonal changes rather than a smooth continuous sweep.

What does Vintage Vibe sound like?

It produces swirling modulation inspired by vintage vibe effects.

Does it have stereo outputs?

Yes. It features two outputs for stereo operation.

Can it be used with one amplifier?

Yes. Output 1 can be used for conventional mono operation.

Does it support an expression pedal?

Yes. A compatible expression pedal can control modulation speed.

Does it have passive bypass?

Yes. Output 1 provides passive bypass operation.

What is the spill-over output?

Output 2 provides an alternative output arrangement that allows modulation trails to continue when the effect is bypassed.

Can it be used for classic rock?

Yes. Its chorus, flanger, phaser and vibe effects are well suited to classic rock guitar.

Is it suitable for ambient music?

Yes. Its chorus and modulation effects can create spacious textures, particularly alongside delay and reverb.

Can it be used with distortion?

Yes. The RG-1 works with clean and overdriven guitar sounds.

Can I use it with a pedalboard power supply?

Yes, provided it offers regulated 9V DC centre-negative power with sufficient current capacity.

Can I part-exchange another pedal towards this Marshall RG-1?

Yes. Fair Deal Music considers selected effects pedals and other musical equipment for part exchange.