TK Audio BC1THD
The BC1-THD provides smooth bus compression that applies for both mixing and tracking.
Engineers call it "The Magic Glue" when the BC1-THD's transparent compression strengthens mixes without compromising clarity.
The built-in blend control makes it easy to apply parallel compression by adjusting the blend of dry and compressed signal. A switchable sidechain filter can be applied which makes the BC1-THD less responsive to low frequency energy. The THD function adds more harmonics to the signal and the "grab" mode selects a harder threshold knee on all four ratio settings. Smooth and transparent compression will never go out of fashion.
Threshold: -20dB to +20dBExternal sidechain: in/outRatio: 1.5:1 / 2:1 / 4:1 / 10:1 /HP Filter: 80Hz, 150Hz, 220Hz, -6dB octaveTHD: adds more even harmonicsGrab: selects a harder thres hold kneeAttack: /0.1/0.3/0.6/1/3/6/10/30/60/120mSRelease: 50mS/100mS/300mS/600mS/1.2S/AutoGainreduction meterMake-up: 0 to +20dBDry signal muteBlend control: from dry to compressedCompression in/outExternal sidechain input: unbalanced TRS jacksInternal, regulated powersupply with a toroidal transformer115 or 230V, selectable
Frequency response: 20Hz to 20kHz less than -0,025dB
Frequency response: 20Hz to 80kHz less than -0,3dB
Blend control fully CW (dry)
THD+N @ 0dBu: less than 0,0045%
THD @ 0dBu: less than 0,001%
THD+N @ +26dBu: less than 0,02%
THD @ +26dBu: less than 0,02%
Blend control fully CCW (straight)
THD+N @ 0dBu: less than 0,00045%
THD+N @ +26dBu: less than 0,0003%
Input impedance: 20kohm
Output impedance: 50ohm
Max input level: +26dBu
Max output level: +27dBu @ 600ohms load
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