Rupert Neve Portico 5032 Mic Preamp/EQ Module High Pass Filters: Continuously variable swept frequency from 20Hz to 250Hz. Slope: 12dB/octave Gain: Unity to +66dB in 6dB steps, Trim continuously adjustable from -6dB to +6dB Buss Output: Output is designed to feed a Buss-mix Amplifier at the internal system level of -2.5 dBu. Maximum Output Level: Maximum output from 20Hz to 40kHz is +25dBu. Mid Peak EQ: +/- 15dB boost or cut. Continously variable frequency, 80 to 800Hz or 800Hz to 8000Hz switchable