Congratulations on your purchase of & Yamaha GC2020BII 2-Chanel Compressor] Limiter. The GC2020BIF is ¢ high-performance 2-chandelier comprehensibility. that can be effectively used in recording; sound reinforcement, and other production applications. The GC2020BIT offers a wide variety of control features for precise tailoring of comperes: scansion limiting parameters, end it also features an expanded type noise gain in each chandelier for effective noise reduction.
COMPRESSION AND LIMITING The GC202081Lis capable of performing both compression and limiting functions: Though both compression and limiting work on Basically the same principle, the actual effect is quite different. COMPRESSION Generally, 4 compressor is used: 1o fiat large signal into a smallish space. Specifically, in-a situation-where the -dynamic range: of the original audio signal s Target: than the electronic reproduction equipment which i to process it can handle, a compressor reduce.
CONTROLS & CONNECTIONS * FRONT PANEL Tl popovers annotation teb REAR PANEL POWER Switch Press this switch to furn ‘AC power to the power ON. The POWER indicator damp located above the POWER switch will light to Indicts that power is ON Press 4 second 1ifme to turn power OFF, Since the GC2020BH inputs and 3-pin outputs are electronically balanced; o signal is delivered “to the outputs when the power [ OFF. @ LINK Switch This switch determines whether the GC2020BIL functions in the DUAL MONO.or STEREO meed.
The EXP GATE LED indicator located above the EXP GATE control lights when the gate is open. Rotating the EXP GATE contort fully counter-clockwise disengages the gate function: To set the EXP GATE, start with the control 'set at 0" and: the: sauce. connected,. but with. no signal applied. Monitor the output fem the appropriate channel of the GC2020BII at 2 revel high spotlight that you can hear any glissandi vise in the system.
Threshold levee 10,8l 00 40 B0 520 00 e 4 Input -Signal-Level{48} COMPRESSION RATIOS Output-Signal Level (dB) Fig. 6 @ ATTACK Tums Control This control determines ‘how: long 'it: beforehand the full-tantamount of once threshold level is exceeded The ATTACK time range is from 0.2 milliseconds, 4 very fast attack, o a relatively skewer 20 milliseconds. {See Fig. 7} The-attack time setting wail depend largely other type of signal: Being processed and the type ‘of effect desired.
W INPUT LEVEL Switch Use this switch to set the sated nominal input level to correspond 1-the rated output level of the equipment to b connected. B OUTPUT Connectors Both balanced [3-pin male XL:R type connectors) and unbalanced (174" phone jacks) output connectors are: available, A 600 omit_ lines should be used for. the balanced XL's and a:10k phm line:for the unbalanced 1/4” phone jacks.