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500 Series

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Single channel ribbon microphone preamp module for 500 Series
Meticulous reproduction of the original 312 mic preamp designed by Saul Walker in the 1970s and adapted to the 500…
4-channel mic preamp with an additional audio mixer with transformer balanced output.
4-channel mic preamp with variable output and 2520 Op Amps as well as a 3:1 Output transformer tap selection
API's famous 6 slot Lunch Box can house up to 6 x 500 series modules. Choose a rack and mix…
8-slot 500 Series format chassis capable of delivering 250 mA of power per slot, dB25 I/O, Phantom power. Now features…
Rack-mounted 3U 10-slot chassis and external power supply for 500 Series modules
500-series version of the API 205L Direct Input, with Tone and Bright Controls
Fully discrete mic/line/instrument preamp with, 65dB gain, 48V, unbalanced line, phase, pad, and API's larger than life tone
Low-noise, discrete 500-series microphone, line and instrument with API's traditional 2520 Op amp, providing 65dB of clean gain.
The 525 is a fully discrete feedback type compressor (a la 1176, 660, etc.) and was first manufactured 30 years…
VCA compressor/limiter for Lunchbox and 500 Series with comprehensive controls including variable attack, release, ratio, and output gain controls. The…
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