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Analog Man Comprossor

$215.00
SKU:
AMROSS
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Standard COMPROSSOR

  1. 100% ross specs with hand tested, selected transistors and NOS CA3080E chip.
  2. Standard external attack knob on large comprossor 4/05
  3. Optional external attack knob on small comprossor 5/03
  4. Attack knob has a detent at 12:00 which is the standard Ross/ Dynacomp attack setting.
  5. True Bypass with 3PDT switch
  6. LED with metal bezel
  7. Power jack standard, no extra charge. You can plug a Boss style 2.1mm x 5.5mm barrel 9V DC adaptor into this jack.
  8. UK made RE'AN jacks for best noise isolation and operation. They are more expensive than the metal Mexican Switchcraft jacks that others use, but the benefits outweigh the cost.
  9. Expensive high quality Matsushita/Panasonic capacitors.
  10. Easily repaired if damaged- no custom parts like a mass-produced pedal.
  11. Built in a grey hammer-finish powdercoated box (4" x 5" x 2.25") as seen at the right, with silkscreened graphics, or optionally in the smaller box (2.5" x 4.75" x 1.5" not including jacks, switch, etc) as seen below with hand stamped graphics.

 

Rev4 circuit

 

 In April, 2013 we really improved the COMPROSSOR circuit. Mike had been playing in a band for a few years, and noticed that SOME pedals on his board would not drive a load well, they would get dark and dull, due to a bad (high) output impedance. This is easily tested by running pedals into something like a low impedance volume pedal, with a switchable buffer between them. The ARDX20 with the delay level down is excellent for testing - when ON it's a great buffer, when OFF it's true bypassed. To test a pedal, simply turn the buffer on and off and listen for a change in tone. With most pedals, like our Chorus, Juicer, etc, there is no difference - they can drive the signal to your amp through long cables or volume pedals no problem. But the Comprossor sounded dull when the buffer was removed. The original Ross, Dynacomp, and all the other Ross clones do the same exact thing- they really need a buffer after them to sound good.

Also these pedals don't have a very loud output, especially when you hit them hard, for example with humbuckers or a boosted signal. One other problem all these pedals have is phase reversal - they flip the phase of your signal when you turn them ON. This may not be a problem for most people, but if you split your signal and combine it, or run into two amps, the out of phase signals will cancel and you will get a VERY thin sound. Also, for use as a clean boost, there was too much compression even with the SUSTAIN pot all the way down. So we reduced the minimum compression amount, without changing the maximum amount. Now the pedal is more usable as a clean boost, and also sounds great left on all the time as a tone sweetener/buffer. It's great stacked into dirt pedals, chorus, vibes, etc now. With these problems fixed, there is no need for a blend knob, you should be able to keep your pure tone without the need for additional circuitry. One other thing we improved was the LED circuitry. Now, if one side of the bicomp/mini bicomp is ON, and you turn the other side ON, the first LED does not get dimmer. A small change but something that bothered us. The REV4 boards are usually blue as seen in this picture of the BICOMP.

All of these problems are fixed in the REV4 circuit -

  1. Excellent output impedance for a clearer tone with no signal loss or need for a buffer
  2. More available output for boosting your amp
  3. No phase reversal
  4. Less compression available

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