Rockruepel Sidechain.one; VCA compressor with flexible sidechain filters; use of high-quality components for best sound; continuously adjustable high-pass and low-pass filters for sidechain; frequency range per filter adjustable: 20Hz - 200Hz, 150Hz - 2. 3kHz, 1.5kHz - 20kHz; pre-listening function to control the filtered signal and to use it as bandpass filter; compressor ratio 1:2, 1:4, 1:10; threshold +15dB to -44dB; attack 0. 1ms to 120ms; Release 0.1ms to 1.2s; XLR In & Out; Link two device together for stereo using a standard TS cable; perfect for mixing and mastering; Frequency response 40Hz - 15 kHz ± 0.09 dB, 20Hz - 20 kHz ± 0.22 dB; Max output level: +22dBu; Dimensions (WTH): 483 x 135 x 44 mm; Weight: 1.15 kg