Dangerous Music BAX EQ, 2 Channel Hi-Fidelity Tone Control Equalizer, All potentiometers are screened for accurate and reproducible work, Wide Q shelving for a natural and open sound character, 7 Positions High Pass and Low Pass Filter on Relays for Phase Equality, 8 Position high and low frequency selection, 5 dB Cut and Boost Controls in 1 / 2dB for accurate settings, Frequency range: +/- 0.1 dB from 10 Hz to 20 kHz, +/- 0.2 dB from 1 Hz to 80 kHz, Maximum level: > +28 dBu, Noise floor: <-92 dBu band limited from 22 Hz-22 kHz, THD + N: <0.002%, IMD: <0.003%, Crosstalk suppression:> 105 dB, Input impedance: 25K ohms, Output impedance: 50 ohms, Dimensions: 19 "" 1U