5103 McCullough Ave. Ste. 101, San Antonio, TX 78212
Phone: 210.384.4303
Hours of Operation: Tues-Sat from 11am-6pm

Two-Rock Prototype Custom Reverb Signature V3 50-watt Tube Rectified Head & 2x12 Cabinet w/G12H75 Creambacks - Blue Dragon (038)

By Two-Rock Amplification

$ 6,500.00

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Questions? 210-384-4303 or Email

Two-Rock Custom Amplifier/Prototype

50 Watt Custom Reverb V3, Tube Rectified 

  • No Pull Mid
  • No Loop/Reverb Def.

If you have ever wanted to own a one of a kind Killer Amp, here is your chance!

This amp is a one off prototype of the Custom Reverb Signature V3.  It was one of the first to be built, and you’ll notice it did not have the Reverb/Loop Defeat in the rear panel.

The board was built with the same type of resistors as the V2, but when the V3 went into production, some of the resistor types were changed to work for the complete circuit.

One of the unique things about this amp, besides being a prototype of the V3, is that it’s one of the only Two-Rock amps built on a steel chassis.  All of our amps are built on aluminum chassis, but this amp was an experiment.

The Custom Reverb was the first amp John Mayer purchased of Two Rock, his signature was a modified Custom Reverb without the drive circuit. 

 The serial number is #38 and built by Chad Mangrum on 10-1-10. Since this Amp arrived at Lark it has been stashed away in our owners vault. This amp was recently (10-2019) at Two Rock for a full check up to insure it is in top notch shape. 

  • 50/25 Watt Head (Half Power Scaling) 
  • 2 x 6L6 (50 Watt) 
  • Fet, EQ Bypass, and Reverb Defeat Foot Switch
  • 4, 8, 16 Ohm Speaker Outputs
  • Black Steel Chassis with Black Chicken Knobs
  • 20 5/8" x 12" x 10 5/8
  • 43 Lbs
  • Blue Bronco, Black Grille, Black Accent Piping

2x12 Vertical Speaker Cabinet

 These cabinets are designed specifically to match our Signature Series Amplifiers. These cabs feature void free multi-ply birch construction, special bracing, tuned back, sides, and baffle, and tuned rear port. The result is a stunningly lively cabinet with a huge sound-stage and even bass dispersion.

  • Speaker: Celestion G12
  • Impedance: 8 ohm
  • Power Handling: 150W RMS
  • Dimensions: 21 1/2″ wide x 29″ tall x 12″ deep
  • Weight: 52 lbs.
  • Blue Bronco, Black Grille, Black Accent Piping
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