Scan code: LN107663 Manufacturer code: KE-BASS

Keeley 'Bassist Compressor' Compressor & Limiting Amplifier for Bass

Keeley 'Bassist Compressor' Compressor & Limiting Amplifier for Bass, True Bypass, Attack, Release, Threshold

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Scan code: LN107663 Manufacturer code: KE-BASS
£177.00Item due on 25 August 2021
Due 25th Aug
From £15.89 / month (APR 14.9%)
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Cost of purchase: £177.00
Total inc. interest: £190.68
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Compressor & Limiting Amplifier
Keeley - 'Bassist Compressor'

keeley bassist compressor

Studio Quality CompressionThe Keeley Bassist Compressor gives true high-fidelity compression and limiting which let’s you be heard as well as felt when using performance compression by Keeley Engineering.

The Bassist Compressor is built around the complex and extremely high fidelity THAT Corp. 4320. This works as a very affordable studio-grade compressor in stomp box format! It uses high performance Voltage Controlled Amplifiers, on board true-RMS detector, and ultra-high-performance op-amps to bring you the very best quality.

VCA compressors give you precise control. Therefore, they are perfectly suited to bass guitars. The Keeley Bassist Compressor is both musical and very transparent. Where the older compressors were based on the CA3080 or the LM13700 and are perfect for single coil guitars, the new Keeley Bassist Compressor has no issues with active pre-amps and line level input signals.

Keeley Bassist handle astonishingly large signals along with an incredible bandwidth of over 20 KHz and very low noise. No detail in the bass guitar tone will be lost. The Keeley Bassist will be a sound investment in your tone by having studio quality compression at your feet.

At A Glance • Easily controlable with just 3 knobs
• Rugged construction, perfect for any pedalboard
• Designed and quality crafted in the USA
• True bypass circuitry

Compression & Threshold

keeley bassist compressor

Felt & HeardWhen using the Keeley Bassist Compressor, you will find a sound that is more easily amplified and heard. Using the effect as a limiting amplifier saves your speakers from clipping and distortion.

You can set the Threshold to look for peaks in your signal and limit distortion from your amplifier or damage to your speakers. Simply watch the Threshold Indicator light to see what type of playing you want to limit, then set it to that rate.

Next set the Compression Ratio Control to determine how much compression you want when the signal is above Threshold. Set Compression all of the way down for no (1:1) compression and use the Gain control as a boost! Set Compression all of the way up for an above-Threshold hard-knee limiter.

Attack & Release

keeley bassist compressor

Fluent AttackThere is a certain figure that just sounds good as far as compression goes; and that’s 125 dB/second. With feed forward compressors that use this type of true-RMS detector you use a single time constant parameter.

The timing capacitor gives you attack and release times that adapt to your playing level or the signal input to the compressor.

Attack and Release times vary on program content. Attack times are usually around 100 times faster than release times.

Small & Simple

keeley bassist compressor

Easy Control With only 3 control knobs the Keeley Bassist Compressor is incredibly easy to adjust to find the perfect ammount of compression.


FootswitchTurns the effect on and off. A sturdy swicth, ideal for stompbox use.


Compression (Ratio)Use this knob to set the compression ratio above the threshold. 1:1 represents no compression or no reduction above threshold. Infinity:1 represents a hard limiter, or zero volume inscrease above threshold.


ThresholdUse this knob to set the threshold, or trigger point of compression. Lower settings will cause compression to occur more often, higher settings will require you to play harder before compression begins.


GainAdjust this control to increase output level to compensate for level lost from compression. Asjust higher than unity for a boost.


Threshold IndicatorThis LED will be green if there is no compression, red when the threshold has been reached and gain reduction (compression) is being applied.

Keeley Electronics - Bass Guitar Effects

The Tech Spec

Features Specification
Pedal Type Compressor
Voltage Input 9V
Current Draw 50mA
Input Impedance 1 Meg ohm
Output Impedance 100 ohm
Output Voltage Gain +30dB Boost
Bandwidth > 20kHz
Total Harmonic Distortion 0.1%
Noise -95dBV
Threshold Indicator Dual LED
Voltage 9 Volts
Current 15 mA
Battery Compartment No
Output Channels Mono
Dimensions None
Passive Pedal No
Additional Information
Scan Code LN107663
Model Number KE-BASS
GTIN 854295005239

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For further information regarding Scan's warranty procedure please see our terms and conditions

12 months
Return to base
DOA Period:
28 days
RTB Period:
12 months
Manufacturer Contact Details
Scan Computers International Limited
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Keeley 'Bassist Compressor' Compressor & Limiting Amplifier for Bass
Keeley 'Bassist Compressor' Compressor &  Limiting Amplifier for Bass