TK Audio BC501 500-series Stereo Bus Compressor
The TK Audio BC501 is a double-wide 500 Series module that delivers smooth stereo bus compression in the style of a famous 1980s bus compressor.
TK Audio’s best-selling 500-series module, the BC501, is a stereo bus compressor that features all the power of TK’s flagship BC1-S. The new BC501 adds some more functions taken from the BC2-ME mastering compressor, such as additional ratio settings (1.25:1, 6:1), a THD switch that adds more even harmonics to the signal, and three HPF settings from which to choose (80Hz, 150Hz, 220Hz). All controls are stepped for easy, precise recall. A dedicated Dry/Comp knob allows blending between the original and compressed signals, and an external sidechain input (accessible via stereo 1/8″ mini TRS jack) is also provided.
- Blend control for parallel compression.
- All controls stepped for easy recall.
- High Pass filter on the sidechain with 3 frequencies.
- Additional attack times and lower ratios.
- THD circuit that adds more even harmonics.
- Smooth compression.
Power requirement: +110mA / -90mA (total)
Frequency response: 20Hz to 20kHz +/-0dB
Frequency response: 20Hz to 80kHz +0dB/-0.1dB
THD+N @ 1kHz: less than 0.005%
Signal to noise ratio: 95dB
Cross talk: -90dB
Input impedance: 24kohm
Output impedance: 50ohm
Max input level: +26dBu
Max output level: +27dBu
Threshold: -20dB to +20dB in 41 steps
Make-up: 0 to +20dB in 41 steps
Ratio: 1:25, 1.5:1, 2:1, 4:1, 6:1, 10:1
Attack: 0.1, 0.3, 0.6, 1, 3, 6, 10, 30, 60, 120mS
Release: 50, 100, 300, 600mS, 1.2S and Auto (50mS/2S)
HP Filter: 80Hz, 150Hz and 220Hz (-6dB/octave)
External sidechain input via a stereo 3.5mm TRS
THD circuit that adds even harmonics
Blend control from dry to compressed in 21 steps
Specifications and components may be changed or updated without further notice.
