Keeley Engineering
Bassist and GC-2 LimitingAmplifier
Owners Manual
THANK YOU!
Thank you for purchasing the next generation of Keeley
Compressors,or LimitingAmplifiers.The Keeley GC-2 and Bassist Limiting Amplifiers are at the forefront¬ of stomp box technology, utilizing circuits never before seen in such a small package.TheTHAT Corp 4320 IC, a chip developed by former dbx engineers, has allowed us to produce a foot pedal compressor that in many ways can equal the performance of the legendary dbx 160A while consuming incredibly low power and fitting in an unbelievably
small package. The goal of these pedals is to provide a convenient way of offering real professional quality
compression with the kind of accuracy and transparency that studio engineers depend on every day. Compression of this kind can be a strangely complex thing, so please take time to read through this manual, it may prove quite helpful when setting up your unit.
BASIC CONTROLS:
•True Bypass Footswitch –Turns the effect on or off.If Blue LED is lit at the top of the pedal, the controls are active
•COMPRESSION Knob (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 increase over threshold.
•THRESHOLD Knob – Use this knob to set theThreshold,
or trigger point,of compression.Lower settings will cause compression to occur more often, higher levels will require you to play harder before compression begins.
•GAIN Knob (Output Level) – Adjust this knob to increase output level, to compensate for compression reduction, or to push higher than unity gain or boost.
•Threshold Indicator –This is the LED in the center of the pedal. This dual color LED will be lit green if there is no compression, or red when the threshold has been met and the pedal is applying gain limiting (compression).
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