CompIQ MINI Pro Compressor Pedal for Guitar & Bass

Sale ends on 24 Mar at 24.00PM PDT.

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CompIQ MINI Pro Compressor is a unique featured compressor pedal, with qualities rivaled only by expensive studio gear. It provides the amount of control and versatility needed for professional dynamic processing while preserving the musical response and transparency of analog circuitry.

This mini compressor pedal is a mighty weapon of dynamic processing. You will simply not going to find anything like it.


 How does CompIQ MINI Pro compare to other compressors?

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Studio-grade mini compressor pedal

CompIQ MINI Pro Compressor is an all analog compressor pedal designed for guitar and bass and built around the top class THAT Analog Engine® – the same technology used in rack compressors made by DBX, Presonus or Dangerous Music. A true RMS-level detector measures input signal and applies accurate feed-forward compression through a transparent sounding, high-performance Blackmer® VCA, giving you the power to move your live performance to the next level. No matter what your needs are, CompIQ will take you there seamlessly.

CompIQ MINI features Ratio, Threshold, Gain, Dry/Wet Mix, which all interact with each other and offer the manual continuous controls necessary for a balanced and refined compression setting. Not often found in guitar compression pedals, Compression Knee can be selected between Soft or Hard to best suit any musical needs. With soft knee option selected, the transition into compressor starts earlier, providing a subtle and more transparent effect application. When used in combination with the threshold – which allows you to process just what is needed -, the compressor acts more like a mastering tool. Hard knee compression is in-your-face obvious and is better suited for country pickin’ or bass slappin’ playing styles when dynamic output volume must be an effect in itself. CompIQ MINI Pro also makes up for a perfect limiting effect or act as a compressor/sustainer pedal, when high ratio and hard knee are used.

Dynamic Auto Attack & Release Timing circuitry replaces the need for a dedicated attack switch or manual attack and release controls, rendering perfect timings for any playing style. Two timing options are available for selection – Fast and Slower -, each selection handling both, attack and release timings. Fast attack and release times will create the impression of a modern sound – crisp, punchy and detailed. When combining fast timings with hard knee compression setting, you enter the limiting territory. This is where the blend knob is best used for parallel compression (a.k.a. New York compression style). Slower timings are suitable for slow musical phrasings like bass lines or arpeggiated chords, but really, there are no rules here, just experiment and let the ear be the judge. Regardless of the playing style, the dynamic auto timing of the compressor will always sound great. The timing circuit is very dynamic, adapting to the input signal envelope. Fast transients are released faster, while steady signals decay slower. On average, the release time is 10-15 times the attack time, in each setting.

The amount of compression is indicated by a responsive 5-LED display, for visual feedback over how much the signal is reduced while compression takes place. The True Bypass routing leaves bass or guitar signal chain untouched when the pedal is not engaged, even if it’s not powered.

CompIQ MINI Pro Compressor packs a unique combination of features for an effect pedal of this size, which makes it one of the best mini compressor among guitar pedals available for small pedalboards.

All analog, accurate, transparent compression from a tiny effect pedal

CompIQ MINI Pro Compressor was designed with guitar in mind but make no mistake, it can add dynamic feeling to any audio signal, including vocals – with an appropriate preamp. We think it may also be among the best mini bass compressor effect pedals. Many instruments that can benefit from CompIQ qualities: electric guitar & bass, electric acoustic guitar & bass, electric string instruments, harmonica, brass instruments, synthesizers, etc.

The CompIQ series of compressors is not gonna alter the magic voice of your instrument. It preserves the original guitar or bass tone while providing unobstructed, pristine audio compression. The high dynamic range of these compressors allows natural sounding clean tones and low noise artifact-free audio processing, without distortions usually introduced by optical compressors.

Key features 

  • True analog bypass
  • Blackmer® VCA analog compressor
  • True RMS-level detector
  • Ratio 1:1 – inf:1 (limiter)
  • Threshold -40dB to +10dB
  • Make-up Gain -20dB to +20dB
  • Soft/Hard compression knee
  • Fast/Slower dynamic attack and release timings
  • Dry/Wet mix
  • 5-LED compression display
  • Socketed hi-quality FET audio IC, low tolerance parts & WIMA audio capacitors
  • MINI-sized, black powdered, genuine aluminum Hammond enclosure
  • 9-12 V DC power
  • 2-year warranty

More info


 CompIQ MINI Pro dedicated website

 How does CompIQ MINI Pro compare to other compressors?

Additional information

Weight 0.163 kg
Dimensions 9.2 × 3.7 × 5.5 cm
Features Summary

All analog circuitry made with highest quality components, in a compact, low profile design
True RMS-level sensor
High-performance Blackmer® VCA
Manual continuous controls: Ratio (1:1 to inf:1), Threshold (-40dB to +10dB), Make-up Gain (-20dB to +20dB), Dry/Wet Mix
Soft/Hard Compression Knee selector
Fast/Slower Dynamic Timing selector
5-LED Compression Display
True Bypass;
1590A road-worthy black powdered aluminum enclosure;
MSRP: 169 Euro;
Made in EU/Romania;

Technical Specifications

Input impedance: 1MΩ
Output impedance: less than 100Ω
Ratio: 1:1 to inf:1
Threshold: -40dB to +10dB
Make-up gain: -20dB to +20dB
0dB input referrence level: -20dBu (77.5mV)
Total amount of compression: depends on input signal level, usually 20dB for input signals around -20dBu (77.5mV) and up to 36dB for +4dBu (1.23Vrms) input signal level, all at inf:1 Ratio
Attack time: ~7ms in Fast setting; ~15ms in Slower setting
Release time: ~70ms in Fast setting; ~220ms in Slower setting
Dynamic Timing: transients are handled faster; steady signals are handled slower
Output noise at 0dBV gain: -95dBV
Total Harmonic Distortion THD: 0.05% for -5dBV input signal level @ 1kHz
Wet output frequency response: -2dB @ 40Hz; 0dB in between 100Hz and 22KHz
Dry output frequency response: FLAT; 0dB in between 10Hz and 100KHz
5-LED Display: calibrated for designed referrence input level of -20dBu (77.5mV), to accomodate electric guitars and bass pickups; compression occurs beyond -20dB Red LED indication, when input signal is stronger
External power voltage: 9-12VDC
DC power connector polarity: center negative [ – ]
DC power plug barrel: Ø 5.1/2.1mm, 12-15mm long
Current consumption: < 25mA


MINI Pro vs. PRO Stella
Signal Variation Element
Signal Level Detection
Manual Ratio
Manual Threshold
Manual Attack
Manual Release
Manual Make-up Gain
Dynamic Auto Timing
Compression Knee
Side Chain Filter
EQ Bypass
Dry/Wet Mix
Tape Saturation
Saturation EQ
CompIQ PRO Stella Compressor
Blackmer® VCA
RMS-Level Sensor
1:1 to inf:1
-40dBu to +10dBu
0.12 ms/dB – 12 ms/dB
1.2 ms/dB – 120 ms/dB
-6dB to +20dB
Fast / Slower (selectable)
Hard / Soft (selectable)
Normal / Low / Deep (selectable)
Tilt-EQ +/-6dB with Low / Deep frequency pivot (selectable)
(jumper selectable)
On Dry Line,
adjustable with Saturation / Level controls
Lo / Hi cut filters
(jumper selectable)
CompIQ MINI Pro Compressor
Blackmer® VCA
RMS-Level Sensor
1:1 to inf:1
-40dbu to +10dBu
-20dB to +20dB
Fast / Slower (selectable)
Hard / Soft (selectable)
MINI Pro vs. other minions
Wanna know more about mini compressor pedals? We compiled a Technical Shootout for most performance and popular mini compressor pedals available. Click here to find out how CompIQ MINI Pro stands out.
Blackmer® VCA
First developed by David Blackmer of dbx Inc., the original dbx 202 “Black Can” VCAs, can still be found in operating consoles today. These first VCAs suitable for pro audio equipment were built with a gain cell of eight discrete transistors. Later development of these IC’s surpassed all inconveniences of earlier designs, now rendering superior performances. CompIQ series of compressors use THAT Corporation Blackmer® VCAs which are characterized by an exponential control characteristic (gain varies directly in decibels), extremely wide dynamic range, and low signal distortion. They are particularly neutral in sound, adding little or no coloration to audio signals.
RMS-Level Sensor
Invented by David Blackmer of dbx Inc., the RMS-level detector computes Root Mean Square level of input signals in a logarithmic form, similar to how human ear perceives sound. The sound envelope decoded by this accurate detector is used to apply dynamic processing of the sound – the variation of signal level precisely controlled by the VCA according to parameters set by the user (Ratio, Threshold, Attack, Release, and Gain).
Line-level signals
CompIQ series of compressors (both Stella and MINI) share the same core technology – sound wise they sound exactly the same. They have 50dB threshold range, from -40dB up to +10dB which is from average magnetic pickup level up to way above line level, so you can use them with line level signals without distorting whatsoever. They can be used on line-level FX Loops or can feed hi-Z input on recording interfaces without issues. Having an RMS-level detector, the compression is very accurate and the LED indication is very precise in that regard, as long as the input signal is at/around calibrated reference level. With line level signals, which is way up, the LED’s may flash red more often, but there is nothing wrong with that. We should have added means for re-calibrating the compression display for any signal level, but for the scope of a pedal used with an instrument, fixed reference is all right. CompIQ “0dB input reference level” is set at -20dBu (77.5mV). The total amount of compression depends on input signal level, usually 20dB for input signals around -20dBu (77.5mV) and up to 36dB for +4dBu (1.23Vrms) input signal level, all at inf:1 Ratio.
Compressor noise
The re-amplification of a weak signal – as compressed signal is – is the main source for noise in compressors. Some compressors might be described as noisier than other, but the fact is they all introduce noise with amplification (the amount of noise is also dependent on amplification circuit, FET-based amplification being potentially a bit noisier; in CompIQ compressors, amplification takes place in the VCA). To correctly compare compressor’s noise, they must be set for the same exact amount of threshold, ratio and make-up gain, and be fed the same reference signal. Some manufacturers limit the Ratio of their compressors to 7:1 (Empress), or as low as 3:1 (Diamond) and those make for “very silent compressors”. Of course in this regard “silent compressor” has a subjective meaning, if it’s not a misleading statement. As far as CompIQ compressors go, keep in mind:

  • at higher input signal levels, the makeup gain-related noise will be lower, because you deal with a bigger signal in the first place;
  • if you set a higher threshold, hard knee, and inf:1 ratio and you affect only the peak of the signals – as this limiting setup makes sense to be used – the noise will be inaudible.
  • for weak magnetic pickup signals, at the lowest set threshold and with ratios around 4:1 (which is a fair amount of compression), the CompIQ make-up gain will introduce noise similarly to studio-grade equipment.
  • on top of Threshold, you have the MIX control which helps reducing noise by blending in the dry signal;
  • using soft knee also contributes to reducing the need for make-up gain, so implicitly it reduces potential noise.
Independent demos, reviews & comments


Watch video demos and independent reviews for CompIQ MINI Pro Compressor

Prashant Aswani CompIQ Poster