Quick Product Summary

The Fender GB Twin Reverb is George Benson's signature interpretation of one of Fender's most celebrated professional valve amplifiers. Delivering 85 watts of all-valve power through two 12-inch Jensen Tornado Classic neodymium speakers, it combines the huge clean headroom and authority associated with a Twin Reverb with a warmer, lower-gain Normal channel specifically voiced for Benson's smooth and expressive playing style.

A lightweight solid pine cabinet and neodymium speakers help reduce the weight compared with a traditional '65 Twin Reverb, while classic Fender spring reverb, vibrato, two independent channels and tilt-back legs make it an exceptionally capable professional stage amplifier. It is especially impressive for jazz and clean electric guitar, but its headroom, dynamic response and rich valve tone also make it an outstanding pedal platform for blues, country, soul, funk and rock.

At A Glance

Feature	Details
Brand	Fender
Model	GB Twin Reverb
Signature Artist	George Benson
Type	2x12 Valve Guitar Combo
Condition	New
Output	85 Watts
Speakers	2 x 12" Jensen Tornado Classic
Channels	Normal & Vibrato
Effects	Spring Reverb & Vibrato
Cabinet	Lightweight Pine
Weight	Approx. 22.7kg
Main Appeal	Huge clean headroom with warmer George Benson voicing
Best For	Jazz, blues, soul, funk, country, clean tones and pedal-based rigs

What Makes the Fender GB Twin Reverb Special?

The GB Twin Reverb retains the power, clarity and expansive clean sound that made the Twin Reverb a professional standard, but Fender worked with George Benson to make several carefully considered changes. Most notably, the Normal channel is re-voiced with a 12AY7 preamp valve, providing lower gain and a smoother response that complements warm jazz tones, complex chords and dynamic playing exceptionally well.

Fender also addresses one of the traditional Twin Reverb's biggest practical challenges: weight. A lightweight pine cabinet and Jensen Tornado neodymium speakers bring the GB Twin Reverb down to approximately 22.7kg while retaining two 12-inch speakers and 85 watts of genuine valve power. The result is a formidable stage amplifier that feels noticeably more manageable than a conventional vintage-style Twin.

George Benson Signature Voicing

George Benson's playing demands an amplifier capable of retaining warmth and body while allowing every note in sophisticated chords and fast melodic passages to remain clear.

The GB Twin Reverb's Normal channel has therefore been deliberately re-voiced for lower gain and increased tonal refinement.

A 12AY7 valve replaces the higher-gain preamp configuration used in a conventional Twin Reverb, providing a smoother response with greater control before the amplifier begins to push into overdrive.

For jazz guitarists in particular, this helps produce the warm, rounded sound required from hollowbody and archtop guitars without sacrificing note definition.

85 Watts of All-Valve Fender Power

At the heart of the GB Twin Reverb is an 85-watt all-valve power section driven by four 6L6 valves.

This provides enormous clean headroom, making the amplifier capable of maintaining clarity at serious stage volumes.

Rather than compressing and breaking up quickly, the GB Twin Reverb remains broad, dynamic and authoritative as volume increases.

That makes it particularly suitable for:

• Clean jazz guitar
• Large stages
• Full-band performances
• Pedalboards
• Funk rhythm guitar
• Country
• Soul and R&B
• Blues
• Players requiring maximum clean headroom

Two 12" Jensen Tornado Classic Speakers

The GB Twin Reverb uses two 12-inch Jensen Tornado Classic speakers with lightweight neodymium magnets.

These speakers play an important role in both the sound and portability of the amplifier.

Their fast response and excellent clarity complement the Twin's powerful clean platform, reproducing articulate highs, controlled lows and detailed midrange without masking the character of the guitar.

The neodymium magnets are also considerably lighter than traditional ceramic speaker magnets, contributing significantly to the reduced overall weight of the amplifier.

A Lighter Twin Reverb

Traditional Twin Reverbs have earned a reputation for exceptional tone – and considerable weight.

The George Benson model addresses this with a lightweight solid pine cabinet and neodymium speakers.

At approximately 22.7kg, the GB Twin Reverb is substantially lighter than Fender's standard '65 Twin Reverb while retaining the professional 2x12 format and 85-watt valve output.

For gigging guitarists who love the Twin platform but regularly need to move their own amplifier, this is a major practical advantage.

Two Independent Channels

The amplifier provides two distinct channels:

Normal Channel

The George Benson-voiced Normal channel provides:

• Volume
• Treble
• Middle
• Bass
• Bright switch

Its lower-gain voicing is one of the defining features of the GB Twin Reverb.

Vibrato Channel

The Vibrato channel provides:

• Volume
• Treble
• Middle
• Bass
• Bright switch
• Reverb
• Vibrato speed
• Vibrato intensity

This retains more of the traditional Twin Reverb experience and provides access to Fender's classic onboard effects.

Four Inputs

Each channel provides two 1/4-inch inputs, giving the GB Twin Reverb four inputs in total.

This is consistent with the classic Twin Reverb control layout and allows players to choose between the characteristics of the Normal and Vibrato channels.

Classic Fender Spring Reverb

Few amplifier effects are as closely associated with Fender as genuine spring reverb.

The GB Twin Reverb delivers the spacious, dimensional ambience players expect from a full-sized Fender valve combo, ranging from subtle depth behind clean chords to expansive vintage-style reverb.

It is particularly effective with jazz, blues, country, surf, soul and atmospheric clean guitar sounds.

Fender Vibrato

The Vibrato channel also provides Fender's classic valve-driven vibrato effect, with independent Speed and Intensity controls.

Despite Fender's traditional naming, the effect operates as amplitude modulation – what would technically be described as tremolo.

From gentle movement behind clean chords to pronounced rhythmic pulsing, it provides another classic Fender sound without requiring an external effects pedal.

An Exceptional Pedal Platform

The combination of huge clean headroom, full-range 2x12 projection and responsive valve amplification makes the GB Twin Reverb an outstanding pedal platform.

Overdrive, distortion, modulation, delay and reverb pedals have plenty of clean amplifier headroom to work with, allowing the character of the effects to remain clearly defined.

Players building most of their sounds around a pedalboard may therefore appreciate the GB Twin Reverb even if jazz is not their primary style.

Tilt-Back Legs

Classic 16-inch Fender tilt-back legs allow the cabinet to be angled upwards on stage.

This directs the speakers more towards the player's ears, making it easier to hear the amplifier clearly without necessarily increasing stage volume.

It is a simple but genuinely useful feature for rehearsals and live performance.

Who Is It For?

The Fender GB Twin Reverb is a professional-level amplifier particularly suited to guitarists who prioritise clean headroom, warmth, dynamic range and exceptional note definition.

It is especially well suited to:

• Jazz guitarists
• Archtop and hollowbody players
• George Benson fans
• Professional gigging musicians
• Clean-tone specialists
• Funk players
• Soul and R&B guitarists
• Country players
• Blues guitarists
• Pedalboard users
• Session musicians
• Large-stage performers

Although conceived with one of the world's greatest jazz guitarists, the GB Twin Reverb is far from a jazz-only amplifier. Its exceptional clean platform makes it useful anywhere clarity and headroom are priorities.

Why Choose a High-Headroom Valve Combo?

Not every guitarist wants an amplifier that distorts early.

A high-headroom amplifier remains clean and dynamically responsive as volume increases. This is particularly important for jazz, funk and country players, where pick attack, chord detail and the natural character of the guitar need to remain intact.

It can also be extremely valuable for effects users. Instead of the amplifier adding significant distortion of its own, pedals can provide the required drive and gain while the amplifier acts as a powerful, full-range foundation.

The GB Twin Reverb combines this traditional high-headroom philosophy with the warmth, compression and responsiveness of a genuine valve amplifier.

GB Twin Reverb vs '65 Twin Reverb

The '65 Twin Reverb is the traditional choice for players looking for the classic black-panel Fender Twin experience, with its birch-plywood cabinet, Jensen C12K ceramic speakers and conventional preamp configuration.

The GB Twin Reverb retains the essential 85-watt valve Twin platform but introduces several George Benson-inspired changes. Its re-voiced Normal channel uses a 12AY7 for a smoother, lower-gain response, while the lightweight pine cabinet and Jensen Tornado neodymium speakers substantially reduce overall weight.

Choose the '65 Twin Reverb for the traditional specification. Choose the GB Twin Reverb if you want the enormous Twin clean sound with a smoother Normal channel and considerably improved portability.

What's Included?

• Fender GB Twin Reverb George Benson Signature Amplifier
• 2-Button Vintage-Style Footswitch
• Protective Amplifier Cover

Technical Specifications

General

Brand: Fender
Model: GB Twin Reverb
Series: Artist Signature
Signature Artist: George Benson
Amplifier Type: All-Valve Guitar Combo
Colour: Gray and Black
Output Power: 85 Watts into 4 Ohms
Channels: 2 – Normal and Vibrato

Speakers

Speaker Configuration: 2 x 12"
Speakers: Jensen Tornado Classic
Speaker Type: Neodymium
Individual Speaker Impedance: 8 Ohms
Total Impedance: 4 Ohms

Valve Configuration

Preamp Valves

• 3 x 12AX7
• 1 x 12AY7
• 2 x 12AT7

Power Valves

• 4 x 6L6

Normal Channel Controls

• Bright Switch
• Volume
• Treble
• Middle
• Bass

Vibrato Channel Controls

• Bright Switch
• Volume
• Treble
• Middle
• Bass
• Reverb
• Vibrato Speed
• Vibrato Intensity

Inputs & Connections

Inputs: 4 x 1/4"
Normal Channel Inputs: 2
Vibrato Channel Inputs: 2
Speaker Outputs: 2 x 1/4" Parallel – Internal and External

Effects

Reverb: Yes
Vibrato: Yes
Footswitchable: Yes

Cabinet & Hardware

Cabinet Material: Lightweight Pine
Covering: Gray-Black Vinyl
Grille Cloth: Silver-Strand
Control Knobs: Vintage-Style Skirted Black Plastic
Pilot Light: Red Jewel
Handle: Molded Plastic Strap with Nickel-Plated Caps
Tilt-Back Legs: 16"
Rear Controls: Power, Standby

Weight

Approximate Weight: 22.7kg / 50 lbs

Power Requirements

UK Version: 230V UK mains operation

Frequently Asked Questions

Is the Fender GB Twin Reverb a valve amplifier?

Yes. It is a genuine 85-watt all-valve amplifier using four 6L6 power valves together with a combination of 12AX7, 12AY7 and 12AT7 preamp valves.

What does GB stand for?

GB refers to George Benson, the legendary jazz guitarist whose requirements inspired this signature version of the Fender Twin Reverb.

How is the GB Twin Reverb different from a standard Twin Reverb?

The George Benson version has a specially re-voiced lower-gain Normal channel, lightweight pine cabinet and Jensen Tornado neodymium speakers. These changes provide a smoother response while also significantly reducing the amplifier's weight.

Why does the Normal channel use a 12AY7 valve?

A 12AY7 provides less gain than a typical 12AX7. In the GB Twin Reverb this helps create a smoother, more controlled Normal channel particularly well suited to clean jazz guitar and dynamic playing.

How powerful is the GB Twin Reverb?

It produces 85 watts of valve power into a 4-ohm load, giving it substantial volume and exceptional clean headroom.

What speakers are fitted?

The amplifier uses two 12-inch Jensen Tornado Classic neodymium speakers.

Is the GB Twin Reverb only suitable for jazz?

No. Although designed with George Benson, its huge clean headroom makes it excellent for blues, soul, funk, country, rock and practically any style where a powerful clean amplifier or pedal platform is required.

Is it good with pedals?

Yes. Its high clean headroom and articulate 2x12 speaker configuration make it an excellent platform for drive pedals, modulation, delay, reverb and larger pedalboard systems.

Does it have built-in reverb?

Yes. The Vibrato channel includes Fender's classic spring reverb.

Does it have tremolo?

Yes. Fender calls the effect Vibrato, and Speed and Intensity controls are provided on the Vibrato channel.

Can the effects be controlled by footswitch?

Yes. A two-button vintage-style footswitch is included for switching the Reverb and Vibrato effects.

Does it include an amplifier cover?

Yes. Fender supplies a protective amplifier cover with the GB Twin Reverb.

How heavy is the Fender GB Twin Reverb?

It weighs approximately 22.7kg / 50 lbs, making it significantly lighter than a traditional '65 Twin Reverb.

Why is the GB Twin Reverb lighter than a conventional Twin?

The reduced weight comes primarily from its lightweight pine cabinet and Jensen Tornado neodymium speakers, which are considerably lighter than conventional ceramic-magnet speakers.

Does the GB Twin Reverb have tilt-back legs?

Yes. Fender's traditional 16-inch tilt-back legs allow the cabinet to be angled towards the player during rehearsals or live performance.

Can I connect an external speaker?

Yes. The amplifier provides parallel internal and external 1/4-inch speaker connections. Any external speaker setup must maintain the correct impedance requirements for the amplifier.

Why Buy From Fair Deal Music?

Fair Deal Music is a family-run independent music retailer established in Birmingham in 1987. Whether you're choosing a professional valve amplifier for live work, building a premium pedal-based rig or looking for the ideal clean platform for an archtop guitar, our experienced team can help you find the right equipment.

• Expert advice from knowledgeable musicians
• Carefully checked new, used, pre-owned and ex-display equipment
• Competitive prices on leading music brands
• Secure UK-wide delivery
• Flexible finance options, subject to status
• Friendly support before and after purchase
• Trusted independent UK music retailer with decades of experience
• Large Birmingham showroom with an extensive range of musical instruments and equipment

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Trade your existing gear towards the Fender GB Twin Reverb George Benson Signature Amplifier and reduce the cost of your next purchase. Contact our team for a friendly, no-obligation valuation.