Two Rock Classic Reverb Signature Guitar NEW Amp Head 20/40 Watts

No Sales Tax For Customers Outside Of California.

Mahar's Vintage Guitars is an authorized Two Rock dealer!  Let us know if you'd like to order a custom configuration.  We'll continue to widen our in-store offering as well.

Wine Taurus tolex and cane grillecloth give a custom look without the suede upcharge.

This head was ordered to go with a matching Two-Rock vertical 2x12" cab that is in stock now.  Pictures show the two together, but this listing is for the cabinet only.

This Two Rock Classic Reverb Signature amp is a monster at all volume levels.  It transcends musical styles with a broad array of available sounds, from huge, clean cleans to widely varied overdrive sounds. The amp is impeccably built, and unbelievable sound quality is the result.

The single-channel Classic Reverb Signature is Two-Rock’s ultimate tone shaping machine. This harmonically rich amp can be pushed into beautiful clean or overdriven tones while still retaining the guitar’s natural voice.

The 3-position Gain Structure switch changes the front end sensitivity and overall feel of the preamp; in the down position the amp feels similar to a vintage black-panel, the middle position is much like the Two-Rock Matt Schofield Signature front end with a hotter input stage, and the full up position is our traditional Two-Rock front end. 

FEATURES / CONTROLS:  There is a lot of room here to dial in your tone!  

Power Selector: On 40 watt (4x6V6) models, the HIGH power mode is 40 watts, the LOW power mode is 20 watts.  With the 40 watt Classic Reverb Signature’s output transformer, when switching from 40 to 20 watts, the transformer will compensate for impedance differences so you will not have to change impedances.  

FET Switch - Enables or defeats the FET circuit. (“ON” is “up” position) To enable footswitch control of this function, the switch must be in the down position. When the FET circuit is switched on, the FET GAIN determines the level of boost or cut in the
signal fed to the following stage of the amplifier.

FET GAIN - The FET (Field Effect Transistor) circuit consists of a single stage high impedance preamp/buffer. This is a very dynamic clean boost that when turned up past the 12 o’clock position can be used to boost the signal for increased gain, touch sensitivity, sustain and overdrive. This circuit can also be used to buffer the input from high output pickups. When set below the 12 o’clock position it will actually reduce the level of gain and bass, and essentially “clean up” the signal before it passes to the next stage of the amplifier.

BRIGHT Switch - Boosts the high frequency response. This is most effective when the Gain control is set at 12 o’clock or lower. This is great for adding sparkle to clean tones. The effect is less dramatic as the Gain control is adjusted past the 12 o’clock position.

TREBLE - Adjusts the high frequency response. At lower settings of this control the tone will be warmer and smoother. As you turn this control up the highs become more prominent and aggressive adding gain to the signal as well. This control is very interactive with the Bright switch, Middle control, and Deep switch. In the full counter-clockwise position, high frequencies are bypassed to ground. In the full clockwise position, high frequencies are allowed to pass to the next gain stage.

MID Switch - Boosts the midrange frequency response.

MIDDLE - Adjusts the midrange response. At low settings of this control the tone will be “scooped” of midrange response, emphasizing the highs and lows. As this control is turned up, the midrange frequencies are increased. This creates the “body” of your guitar’s tone and is very critical to both the tonality, feel and overall response of the amplifier. Higher settings of this control also help your tone to cut through the mix in both a live band situation as well as when playing the amp outdoors. In the full clockwise position, mid-range frequencies are allowed to pass to the next gain stage.

DEEP Switch - Boosts the lower bass frequencies. This low frequency contour switch also shifts the emphasis from the upper bass frequencies to the lower bass frequencies which helps smooth out and clarify the midrange response.

BASS - Adjusts the bass response. In the full counter-clockwise position, low frequencies are cut and the response of the treble and mid-range controls is greatly reduced. As this control is turned up, the bass frequencies are increased and allowed to pass to the next gain stage.

EQ1/EQ2 Switch - This switch lets you choose between 2 completely different global equalization settings greatly affecting the overall personality of the amplifier. EQ1 is a lower gain, higher headroom setting with extended midrange and bass response. This setting is suitable for any style requiring a pure clean tone with a nice round bottom end
response, and plenty of headroom. It may seem weak and thin sounding when first switching to the EQ1 setting from the EQ2 setting. This is due to the lower gain structure of EQ1 thus the gain and master settings as well as the tone controls do need to be readjusted in order to take full advantage of the EQ1 setting.

EQ2 - This setting has more available gain yet still provides plenty of clean headroom if desired, along with a full and balanced response overall. This is the setting that most players will prefer to use especially with single coil pickups, and or any type of lower output pickups.

GAIN - Adjusts the overall gain of the amplifier. Start with this control in the 12 o’clock position then adjust to taste. This control determines the initial character of your tone, from cleaner/brighter tones at low settings to fatter/warmer tones at higher settings. As you turn this control up it also introduces more gain and bass into the signal path, and reduces the amount of available clean headroom especially when the master volume is set higher. 

GAIN STRUCTURE - The 3-position gain structure switch alters the sensitivity and overall tonal character of the amplifier’s input stage. This is very effective for dialing in the initial gain and dynamic feel of the amplifier, and thus the way it responds to your guitar’s pickups and your playing style. The up position maintains the familiar Two-Rock feel and midrange response found in the Studio Signature’s legacy predecessors. The down position has a vintage blackface feel with a scooped midrange response and slightly less gain which can be very effective for dialing in a cleaner, bouncier tone especially with
humbucker pickups. The middle position offers the most gain of the three positions, essentially lowering the clean headroom of the input stage and creating a more aggressive edge of breakup tone.

MASTER - Adjusts the overall output level of the amplifier. At lower settings on this control the amp will be much cleaner sounding as well as lower in volume. As this control is turned up the power section of the amp begins to work harder which increases sustain, fullness, and touch dynamics as well as raising the volume of the amplifier. At higher settings on this control the power section will be pushed into natural overdrive especially if the Gain control is set higher.

BYPASS Switch - Referred to as Tone Stack Bypass, this switch bypasses the Bass, Middle, and Treble controls effectively turning them up all the way and increasing both the volume and perceived mid-range response. The Bright, Mid, and Deep switches remain active in the Bypass mode. This function is also foot switchable. To enable footswitch control of this function, the switch must be in the down position.

Reverb Send - This reverb “drive” control determines the amount of signal applied to the reverb tank. Low settings will create a very open, small room reverb effect with a short decay time. Turning the control clockwise increases the signal applied to the reverb driver stage creating a very saturated effect with a sharp attack and a longer decay.

Reverb Return - This is the reverb return control which mixes the reverb effect signal with the dry signal. At full counterclockwise rotation, the reverb effect is defeated. Using this return control in conjunction with the reverb drive control, a wide range of natural reverb effects can be produced. 

CONTOUR - The contour control is an active wide band sweep. In the 12 o’clock position, the amp’s frequency response is flat. Counterclockwise rotation reduces high end response and increases low frequencies. Clockwise rotation decreases low end and increases the high frequency response. This control is very useful for maintaining preamp tone control settings, while allowing a global adjustment to compensate for differences in room acoustics, speaker cabinets, or bright to dark guitars (single coils to humbuckers, for example). This control also actively reduces the articulation available, allowing a softer setting, or extremely open and revealing, depending on your individual style and requirements.

• Case/Cover?: No
• Color: Wine Taurus
• Dimensions: 20 5/8"W x 12"H x 10 5/8"D
• Weight: 43 lbs
• Watts: 40 Watts / 20 Watts - half power scaling
• Date: NEW 2025
• Power Transformer: Original
• Output Transformer: Original
• Choke Transformer: Original
• Reverb Transformer: Original
• Extension Speaker Out? 4, 8, 16 Ohm 
• FX Loop?: Yes
• Reverb or other effects?: Reverb
• Power tubes: 4 x 6V6
• Power Tube Brand: TAD
• Preamp Tubes: 4 x 12AX7, 12AT7 Reverb Driver
• Preamp Tube Brand: JJ
• Pedal?: Yes
• Pots, codes: Original
• Tolex: Original
• Grille: Original
• Knobs: Original Silver Skirt Knobs
• Handle: Original
• Power cord: Included
• Notes:

Shipping policy:

Shipments will require signature on delivery, no exceptions.  If there is damage, the buyer must retain all packing materials intact and picture them immediately and send them to sales@maharsvintageguitars.com.  Less than 1% of our shipments are damaged in transit, and we are committed to making sure your item arrives safely, but we are taking these additional measures to make sure you are happy with your purchase.