Heritage Audio Herchild 660- 1-channel tube-based compressor- sidechain filters (off, 50, 100, 200, 350)- direct access to continuously variable slope- frequency response: 40 Hz to 15 kHz, +/- 1 dB- input impedance: 2 kOhm- output impedance: 600 ohms- Output level: +4 or +8 VU (+30 dBu clipping point)- Inherent noise: below -82 dBu- Harmonic distortion: below 1% up to an output level of +18 dBu (no limiting)- VU meter- connectors: 1x line-input XLR, 1x line-output XLR- Design: 19" / 3 U- Dimensions: 48. 2 x 13.4 x 20 cm (WxHxD)- Weight: 7.4 kg