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.

• External sidechain input via a stereo 3.5mm TRS (unbalanced stereo)
• THD circuit that adds even harmonics
• Blend control from dry to compressed in 41 steps
• Selectable grab function which offers a harder threshold knee.
• Three HPF frequencies; 80Hz, 150Hz and 220Hz.
• Selectable THD function for more “even” harmonics.
• Smooth blend control for parallel compression.

• Power requirement: +120mA / -100mA (total)
• Frequency response: 20Hz to 20kHz +/-0dB
• 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)
• Grab: selects a harder threshold knee

• TK Audio BC501-LTD 500-Series Stereo Bus Compressor
• Manual
• 2 year warranty