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Analog Man Small CompROSSor Compressor Pedal
Analog Man Small Comprossor
2, 3, or 4 Knob Small Comprossor


Our Price: $190.00

Availability - time to dispatch:: Usually Ships in 2 to 3 Weeks


Comp Version*:
REV5 with Mix and ATTACK Trimpots inside on board
REV5 with external MIX knob add $25 [Add $25.00]- We can add a MIX knob. Turn it up all the way for normal compressor sounds (no dry uncompressed sound). Turn it down all the way for no compressed sound, just a nice clean boost/buffer that makes pedals after it sound better. Best almost all the way up, just a bit of dry.
REV5 with external ATTACK knob add $25 [Add $25.00]We can add the ATTACK knob externally.
REV5 with ATTACK and MIX knobs add $50 [Add $50.00]We can add both MIX and ATTACK knobs on the pedal.

Add a Toggle Switch:
Add RYCK toggle option $35 [Add $35.00]- Will not fit on Mini Bicomp with both ATK and MIX knobs.

Add a Patch Cord:
12" switchcraft soldered pancake type patch cord $17 [Add $17.00]

Add a Patch Cord:
6" switchcraft soldered pancake type patch cord $15 [Add $15.00]

Jack option:
Top Jacks $10 [Add $10.00]We can put the in and out jacks on top next to the POWER jack for fitting on a tight pedalboard.
Guitar cables

Add a CBI Ultimate 15 foot Guitar Cable $26 [Add $26.00]Add a great sounding 15 foot long guitar cable, black with straight metal soldered Neutrik ends.
Power Cables for your existing multi-power supply

18" Power Cable for PP2 (one straight and one 90 degree end, unless specified in comments) $3.99 [Add $3.99]Does not work with our $15 Boss type power supplies, has 2 male ends for use with multi-outlet supplies like Voodoo Labs, etc

Extra 36" power Cable for PP2 with one 90 degree end $4.99 [Add $4.99]Does not work with our $15 Boss style power supplies, has 2 male ends for use with Voodoo Labs etc
Optional power supplies

Add a Power Supply:
US 120V 9vDC $15 [Add $15.00]- This is a normal 9V Boss type external power supply/adaptor for USA use with 120V AC wall power.

Add a Power Supply:
Euro 240V $15 [Add $15.00]- this is an external power supply/adaptor for use with 220/240V AC to make 9Vdc for the pedal.

Add a Power Supply:
UK 240V $15 [Add $15.00]- this is an external power supply/adapter for use with UK (3 prong) 220/240V AC to make 9Vdc for the pedal.

Add a Power Supply:
US 120V 12vDC $18 [Add $18.00]- This USA power supply will give 12V to the pedal instead of 9V, see the pedal description for more info on why you might like this.

Add a knob cover:
Add an MXR style knob cover $2.29 [Add $2.29]- This knob cover fits on the larger of the two versions of MXR style knobs we used to use on our AM pedals. It won't fit the knobs we normally use the last few years (except the POT) but if you choose this option we will put the older style knobs on your pedal. They make it easy to turn the knob with your foot. If you want more than one, you can add them to your shopping cart from the Accessories - Pedal Parts menu.
Pedal Options

Spares package:
Comprossor spares - NOS CA3080E chip, 3PDT switch, in/out jack, 2 screws $20 [Add $20.00]Hard to find chip and some useful spares in case of breakage.

NOS 1979 RCA Compressor chip $5 [Add $5.00]We always use New Old Stock (NOS) CA3080E chips in our comps, I don't think any other well-known brands are still using them. They were made by RCA, then Harris, then Intersil as the company was renamed over the years. We have some original 1979 RCA CA3080E chips that I have been saving for years, so I am putting them up as an option. I don't think they sound much different, but they are the exact same ones used in the old grey Ross compressors so it's pretty cool to have one in your pedal.

Add a shirt:

Description Technical Specs Extended Information
Smaller version of the Analog Man compROSSor, based on the old Dynacomp and Ross compressors, upgraded with improved output impedance, not out-of-phase, and optional added attack and mix controls.
Mark Marshall demo with Rick 12 string and optional RYCK toggle.
Link here for all about our CompROSSor Pedals: http://www.analogman.com/

Features: Small COMPROSSOR
  1. Ross specs with hand tested, selected transistors and NOS CA3080E chip.
  2. Optional external ATTACK knob, or internal trimpot as standard.
  3. MIX control on REV5, either as a trimpot on the board or external knob. Mixes dry with compressed sound.
  4. True Bypass with 3PDT switch
  5. LED with metal bezel
  6. Power jack standard, no extra charge. You can plug a Boss style 2.1mm x 5.5mm barrel 9V to 15V DC adaptor into this jack.
  7. Tuned for full low-end, excellent on bass, especially with mix!
  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 NOS Matsushita/Panasonic capacitors.
  10. Easily repaired if damaged- no custom parts like a mass-produced pedal. No robots!
  11. Built in a grey hammer-finish powdercoated box (2.5" x 4.75" x 1.5" not including jacks, switch, etc) with hand stamped graphics.
  12. The small comp is best to use with a power supply as opening and closing the case may put some stress on wiring. If you intend to change the battery often, I recommend the large COMPROSSOR instead.

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 not as much 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
We have one REV4 small comp with FREE attack knob available, ready to ship. No mix control, original Dyna/Ross sound.

Rev5 circuit

This is pretty much the same as REV4 with the addition of a MIX control, which can go from full dry (no compression) to full compressed (same as REV4). Mixing in dry gives you more attack on the note, which is compressed away normally, if you want to hear that. When set at full dry, the pedal becomes a clean boost/buffer pedal and makes pedals after it sound really great, with more presence. Mix is available as a trimpot on the circuit board of the REV5, or as an external knob.

Bicomp REV4

Ryck toggle option

The Dynacomp and Ross circuit is not very bright, to keep white noise down. But sometimes it's nice to have a bright, trebly tone, as heard on Rickenbacker guitar's built-in compressor. Looking at the Rickenbacker schematic, it's about the same as the Dynacomp or Ross except it allows more treble for that jingle-jangle sound. We decided to offer this with a three-way switch so you can get just the amount of treble you want. One position is the normal Dynacomp/Ross value for about the same tone as when the pedal is OFF, and low noise. The second position adds a bit more treble and just a touch of noise - this may be great to use all the time with a darker guitar like a Les Paul. The third position is twice as bright, close to the Rickenbacker setting, for a sound that really pops, with a bit of noise that you probably won't even notice. We can put this toggle on any of our new CompROSSor pedals when ordered, or we can add it later on which costs a bit more as it's more work to add it after the pedal is built.
Here is a good article on the REV4 comp from Tone Quest Report : Tone Quest 2013 article

We also offer the USA 12V power supply for a little more headroom, good if you run a hot signal into the comp.

Here are the optional 9V power supplies for overseas:

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 3 Write a review.

  1 of 1 people found the following review helpful:
5 of 5 Finally a compressor pedal that delivers! March 21, 2022
Reviewer: Gregg from Dallas, TX  
As much as I've wanted to use a compressor to round out some of my clean sounds I've never been able to find one over the last 30 years that is usable without the usual weird quirks that come with compressors.   After reading other very positive reviews  of the CompROSSer I had to give it a try.  I trusted that Mike and co. could get the design close to correct.  I ordered the version with external attack and mix knobs to provide maximum contouring.  Well after about 10 mins of playing I knew I'd finally found a compressor that delivers!    The CompROSSer is absolutely spot-on  for how a compressor should sound and behave.   With the added mix / attack knobs I can finally dial in the right mix of compressed signal with the desired attack to deliver a rich and round tone - without the choppy or blunted sounds that other compressors give.   This is now on my pedal board to put the perfect touch on my single coil electrics.     Highly recommended!

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  1 of 1 people found the following review helpful:
5 of 5 You need this pedal!!! February 8, 2022
Reviewer: Paul from Mesa, Az  
Recently purchased the mini comp 4 knob. Hands down the absolute best compressor I’ve ever put on my board. I’ve wasted enough money to buy this one 6 times over! I’ve tried them all and I’m not naming names but even the boutique builds that cost more can’t compare to Analogman. It took 10 minutes to blow my mind! Absolutely no coloring to my guitar tone, surprisingly low noise even at high volumes through a 64 Bandmaster. I will definitely be buying more pedals from these guys and I’ve already told everyone I know to get one of these compressors!

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  1 of 1 people found the following review helpful:
5 of 5 Small Comprossor November 11, 2021
Reviewer: Derek Burnett from Finger Lakes, NY United States  
I purchased with the external attack and mix knobs as well as the RYCK treble toggle.
It is miles above what my highest expectations even were. It sounds effing glorious. Very minimal noise really if any. I’ve had others, and they could be noisy. Any setting sounds great. The mix knob is so useful in keeping with my stock tone. So far I have kept the attack at noon, but turning either way is totally useful. Honestly this pedal with the knobs in any position is completely useful. Zero to the lowest possible bit of noise and there is smooth sustain for days.
Spank? Oh for sure!!!
There is noticeable changes with the RYCK toggle, which for me going between single P90 Jr, single pup Firebird 1 and classic 57’s in my ES-335 is awesome! In my opinion it doesn’t matter which pickup you play with, this compressor gets it!
Sorry I’m not the most technical in describing, but if you are thinking about a compressor, just buy this one.
It’s a killer!

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