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Stephenson Amplification

Custom Reverb Combo

Custom Reverb ComboThe Custom Reverb is designed for cleaner tones and relies on power tube saturation for its distortion tones.


  • 2 chassis design. Top chassis houses preamp. Bottom chassis houses power supply and power amp.
  • The advantages of a two chassis design include:
  • Proper weight distribution. The heavy components (transformers) are located on the bottom of the cabinet, this way the amp is not
    top heavy and won’t fall over when accidentally bumped into.
  • Proper power tube orientation. The power tubes are sitting upright,
    not hanging upside down.
  • Proper cooling. The heat generating components (power tubes,
    power scale circuit) are located on the bottom where the heat can
    flow out the back vent.  A cool running amp increases component life.
  • Single-channel amplifier
  • Power Scale wattage control
  • Custom made in Canada toroidal transformers
  • Footswitchable gain boost
  • Footswitchable reverb
  • Two 12AX7 and two 6SN7 tubes in the preamp section
  • Gain boost (footswitchable)
  • Reverb (footswitchable)
  • Two octal sockets for power amplifier that can accommodate 6V6, 6L6, or EL34 power tubes.
  • 20 watts power when using 6V6 tubes, 30 watts power when running 6L6 tubes.
  • Speaker impedance selector switch
  • Extension speaker jack to run an extension speaker cabinet
  • Ultralinear on/off rear panel switch
  • 120/240 vac mains  capability (specify at time of order)
  • Cabinet made from solid pine.
  • Speaker baffle made from Baltic birch

Front Panel

Front Panel

Front-panel items:


The Custom Reverb is designed for cleaner tones and relies on power tube saturation for it’s distortion tones.


Power Scale

Power Scale:

This is the amp's wattage control. Power Scaling technology was developed by Kevin O'Connor at London Power and is used under License Agreement. Lower settings produce less wattage. Higher settings produce more wattage.


Rear Panel

Ultralinear Switch

Ultralinear Switch & Foot Switch Socket:

Ultralinear operation has a smooth, warm sound. The Off position is the standard mode of power amp operation. Generally, lower Power Scale settings sound fuller when the Ultralinear is enabled. The Foot Switch jack is a standard stereo ¼ inch connector for controlling gain boost and reverb.



Speaker Output:

This is the speaker output section. The impedance selector is labelled 1- 2 -3 because any setting can be used with a 4ohm, 8ohm or 16ohm speaker cabinet. Use the setting that you like the best. When using different output tube combinations, listen to the different impedance settings to see which one you like best.


Interested in a Custom Reverb Combo Amplifier? See our Price Page for ordering information!