BC501

TK Audio

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-THD.

Since the it was released in 2015 it has found its way into a great numbers of 500 racks all around the globe. The BC501 is one of the most transparent stereo bus compressors ever made. The smooth, soft compression together with the blend control, high-pass filter and the THD function are much appreciated features that now have been expanded with the grab function, known from the BC1-THD. The grab function turns the threshold knee harder and makes the compressor even more perfect for the drum-bus. The BC501 is available in two versions, the BC501-GR with the standard stock black panel and the BC501-Ltd with silver panel, individually numbered and limited edition of 100 units.

Specifications

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

BC501 version history BC501. Released April 2015 BC501-GR / BC501-Ltd. Grab function added and a individually numbered limited version released. (released April 2021)

Features

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.