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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 the Threshold, 
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).

Summary of Contents for GC-2

Page 1: ...Keeley Engineering Bassist and GC 2 Limiting Amplifier Owners Manual ...

Page 2: ...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...

Page 3: ...Knob Use this knob to set the Threshold 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 ...

Page 4: ...o a point where the indicator turns red only under the loudest and most extreme circumstances i e very hard picking attack slaps etc For noticeable compression effects or always active compression sounds adjust Threshold to a level where every note played causes the indicator to turn red Setting the Compression Ratio control The compression control sets the amount of gain reduction that will occur...

Page 5: ...er pedals or recording equipment in sequence or to push a quality tube amp in to breaking up It makes a great boost pedal Just give it a shot One word of note about the Gain control If you find yourself pushing the gain quite a bit above midway or zero db in order to get unity gain your threshold is set too low and your compression level may be set too high The more gain that is introduced the mor...

Page 6: ... an active bass to a point where every note played triggered the compressor and it released quickly after the note began to decay COMPRESSION 2 1 5 1 THRESHOLD Dependent on Instrument for ours 30db GAIN 0 to 6db are adaptive to your playing level or the signal input to the compressor Bottom line Attack and Release times vary on program content Attack times are generally speaking about 100 times fa...

Page 7: ...b This setting is for heavy compression and limiting Perfect for lead boosts or country Chicken Pickin One word of note the Threshold setting will depend heavily on the output level of the instrument played so it must be adjusted to taste COMPRESSION 5 1 10 1 THRESHOLD 30db GAIN to taste 0 to 4 db This is aVERY BAD setting At this position you will get constant over compression no dynamics and a s...

Page 8: ...CONTACT US RKFX COM I FX RKFX COM I TOLL FREE 1 8668 GO RKFX ...

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