5024 - Quad Mic Pre
Incorporating four channels of renowned preamplification, independent silk controls, two channels of DI inputs, and an M-S Decoder into a 1U enclosure, the 5024 is a workhorse equipped to enhance the front end performance of any digital or analogue recording system. Each channel of the Portico 5024 is based around the custom transformers and class-A circuitry found in the best-selling 5012.
In addition to 72dB of gain, the 5024’s mic pres include individually selectable phase, mute, phantom power, a selectable frequency high pass filter, and the Silk circuit which yields the rich warmth and presence of the renowned classic designs. Channels 1 & 2 of the 5024 feature a high-Z input designed for instrument level sources. Channels 3 & 4 feature an M-S switch, which enables Mid-Side decoding without the use of multiple console channels. 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: Selectable either 30Hz or 90Hz Slope: 12 dB/Octave Bessel
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