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SCA S90 Series Microphone Preamp Module

SCA S90 Series Microphone Preamp Module

$239.00Price
The Seventh Circle Audio S90 is a transformerless microphone preamplifier that delivers the unmistakable character of the popular SSL 9000 consoles. Instead of the gain trim knob, the S90 features a switchable High-pass filter going from OFF-220 Hz using a 12 position Grayhill switch. Available as a DIY kit or fully assembled mic preamp module.

  • FEATURES

    High Gain

    The S90 delivers up to 70dB of gain. This is more than enough gain for most applications, especially with modern high-output condenser microphones.

    Stepped Gain Control

    A 12 position Grayhill switch provides accurate and repeatable gain settings in about 5dB steps from 15dB to 70dB.

    Phase Reverse

    Inverts the signal phase.

    Phantom Switch

    Slow-rise phantom power minimizes pops and thumps.

    High-Pass Filter

    Switchable from OFF-220 Hz using a 12 position Grayhill switch provides accurate and repeatable filter settings

    Neutrik Connectors

    High quality PC mount connectors eliminate cabling and ease assembly.

    Polypropylene Coupling Capacitors

    Instead of an input transformer, the S90 uses a combination of high-quality polypropylene film capacitors and bipolar electrolytic caps to block +48V phantom power while maintaining flat frequency response to below 10Hz.

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