Retro Instruments Revolver

Dual-channel tube compressor based on the legendary British-modified Altec 436
Retro Instruments Revolver
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The Retro Instruments Revolver is a highly flexible two-channel all-tube compressor, hand built in the USA with that classic British tone. The Revolver is modeled after the legendary Altec 436 compressor but includes some expanded features to further control the compression in any stage from tracking, mixing to mastering.

Each channel has independent controls for Input, Output, Attack, Release and a Side Chain Filter with the options of 90 Hz and 250 Hz. By engaging the “Link” control, the Revolver will function as a true stereo compressor. The Dual Threshold Control is used to adjust the ratio between 1:5 and 5:1 on each channel, but can also be used to add amplifier saturation to thicken up a vocal, drum bus or the entire mix.

The Revolver is equipped with two beautifully designed and well-lit vintage-style VU meters. A “Meter Zero” control is conveniently located on the front panel to ensure the calibration is spot on every time. Tubes and other components are selected for top performance and proper stereo tracking.


  • A most desired compression signature
  • Ideal for the stereo bus and excels at tracking, mixing and mastering
  • Independent controls with stereo linking, continuously variable input, output, attack, release and threshold
  • Dual Threshold Control allows control of ratio and amplifier saturation
  • Low noise and high separation
  • Differential all-tube signal path
  • Transformer-balanced inputs and outputs on XLR connectors
  • Illuminated VU meters
  • Front panel meter zero controls
  • Internal tube balancing facility
  • 120 or 240 Volt operation

Additional Information

Condition New
Channels Dual-Channel
Chassis 19-in Rackmount

Compressor's are abundant and come in many flavors these days. Rarely does an analog one come along that takes the bar and moves it up a notch. The Revolver is one of those compression units that did exactly that. And best thing is it is STEREO, saturated with tube love and comes with a slick Retro ink pen! The only thing missing is a Pin Up calendar.

By Arlo W on February 20, 2019

I can’t say enough good things about it. The sound and build quality is amazing and the compressor just seems to hold things in place with out sounding squashed unless you want it to.

By Frank D on February 6, 2019

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