Suhr Koji Compressor


Suhr have created a sleek modern compressor that does just about everything right. The clear sound you get through it can be even further manipulated with the tone control switch. This compressor is meant to be able to do both the heavy compression of the Dynacomps of the world, and subtle compression that is hard to come by in the stomp box arena.

External Control: REMOTE
Cost: $$

HornFX Review

Interface:  4/5
If nothing else pleases you about this pedal, you will love the mix knob. It is wonderful to be able to choose how much dry signal and how much compressed signal goes through. This can serve to really tailor your sound both tonally and dynamically. The indicator light is nice, as are the multiple voice modes for different tones.

Noise: 4/5
This is a very quiet pedal.

Complexity: Medium

Complexity: Medium

Live application: 4/5
This is a great live compressor. The ability to choose the amount of compressed signal with the mix knob, as well as the specificity with which you can manipulate tone makes it a worthwhile addition to your board.

InterfaceNoiseLive ApplicationTotal Score
4/54/54/512/15

Product Information

The Koji Comp is a versatile analog compressor, designed to offer a wealth of vintage and modern style compression effects without compromising your tone.

With a simple twist of the Mix control, or flick of Koji’s Voice switch, you can easily create a limitless range of compression effects. Whether you choose subtle, transparent compression for smoothing out your rhythms, or dial in warm and squishy tones to take you into R&B and Country territory -the Koji Comp is possibly the last compressor you will ever need.

CONTROLS

COMP: This control determines the amount of compression (gain reduction) applied to your signal path.

LEVEL: Adjusts the overall output level of the Koji Comp. Use this control to compensate for the amount of Compression/Gain Reduction applied to your signal path.

ATTACK: Determines how quickly the compressor responds to signals above a desired threshold.

MIX: Varies the ratio of dry to compressed signal from 10% – 100%.

VOICE SWITCH: This switch offers the following three voicings.

  • Left – Offers a boost to the upper midrange frequencies to bring out the attack in your picking.

  • Middle – Transparent (flat) frequency response.

  • Right – Offers a boost in the upper midrange and treble frequencies – for a smooth, glassy, top-end sweetness.

  • Input Impedance: 1M Ohm

  • Output Impedance: 600 Ohm

  • Power Connector: 9Vdc regulated, center negative, 2.1mm x 5.5mm

  • Operating Voltage: 5V to 18V (nominal 9V)

  • Maximum Voltage: 20Vdc

  • Attack Time Range: 1MS-100MS

  • Gain Reduction Indicator: 3 Color LED

  • Reverse Battery Protection: Yes

  • Over Voltage Protection: Yes

  • Current Consumption: < 20mA

  • Estimated Battery Life: 40-50 hours of continuous use

  • FX Link Connector: 1/8" Mono

  • FX Link Max Voltage: 3.3Vdc

  • Shield → Tip: Activate On/Off

  • ROHS Compliant: Yes

  • Dimensions: 2.5”(W) x 4.5”(D) x 1.25”(H)

  • Weight: 0.75lb

MULTI-FUNCTION LED

More than simply indicating the pedal is turned on, the LED gives you visibility into the amount of compression you’re using. The LED will display one of three colors, indicating the amount of Gain Reduction based on the ratio of your instrument’s signal and the level of compression in your signal.

Green: Minimal Gain Reduction
Orange: Moderate Gain Reduction
Red: Significant Gain Reduction (This is not a bad thing)

ADVANCED FEATURES

Selectable Bypass Mode: Because compressors are commonly found early in the signal chain, we’ve included a high quality, transparent sounding, buffer. Via an internal switch, you can choose to have Koji operate in true bypass, or buffered bypass modes.

FX Link: The FX Link connector allows the pedal’s switching function to be controlled from an external switch, pedal board, loop switcher, or any other custom interface. FX Link also provides the ability to power up in the On/Off state.

Low Battery Monitor: Koji incorporates a unique battery monitor that alerts the user to low battery conditions. In addition, the battery monitor will automatically switch the pedal to True Bypass if the battery voltage is too low for the circuitry to correctly operate.

 Product info taken from the Suhr website.