Lake People Mic-Amp F311-Q Four Channel Microphone Preamplifier

The F311-Q is the four-channel build of the Lake People microphone preamplifier, fitting four independent channels into a single 19 inch rack unit. Gain runs 0 to +66 dB on a precision stepped switch in twelve 6 dB steps, and noise measures -129 dB at 60 dB of gain.

Inputs and outputs are electronically balanced on XLR with unbalanced RCA outputs alongside, and input impedance is 5 kOhm. Phantom power at 48 V switches per channel pair, and each channel has a 70 Hz low cut at 12 dB per octave, phase reverse and an internally calibratable level meter. Frequency response runs 5 Hz to 70 kHz at -3 dB with THD+N under 0.001 percent and a maximum output level above +25 dBu.