Portico II
Specifications
Mic Pre
Frequency Response:
Main Output, no load, –3 dB @ 2 Hz –3 dB @ 160 kHz
Noise:
Measured at Main Output, unweighted, 22Hz-22kHz, Terminated 150 Ohms. With gain at unity better than –92 dBu With gain at 66 dB better than –56 dBu Equivalent Input Noise better than –123 dBu
Gain:
Unity to +66dB in 6 dB steps, Trim continuously adjustable from –6dB to +6dB Line Input: Trim continuously adjustable from –6dB to +6dB Maximum Output Level: Maximum output from 20 Hz to 40 kHz is +25 dBu.
Phantom Power:
48 Volts DC +/- 1%
Total Harmonic Distortion and Noise:
@ 1kHz, +20 dBu output: Better than 0.002% As above, Silk Engaged: Better than 0.2% Second Harmonic @ 20Hz, +20 dBu out Better than 0.004% @ 20Hz, +20 dBu out Better than 0.020% IM Distortion: Better than 0.002%
Slew rate Better than 4 V/uS High Pass Filter: Frequency: Continuously Variable from 20 Hz to 250Hz Slope: 12 dB/Octave Bessel
