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Chameleon Labs 500 Series 581 Class AB Microphone Preamp
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      Chameleon Labs 500 Series 581 Class AB Microphone Preamp (107914673)
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Incredible, warm sound from this well priced 500 series microphone preamp.

The Chameleon Labs Model 581 is a discrete Class AB 500 series microphone preamplifier module, with an extraordinary sonic signature at an amazing price point. Its clarity and incredibly solid low end is reminiscent of renowned classic designs. Rich, warm, and musical, the 581 provides detailed results by employing classic circuit design, polystyrene capacitors, hand selected components and custom wound transformers, Chameleon Labs ensures that the Model 581 will exhibit classic audio sound. It is also designed to comply with any 500 series powered chassis approved by the API VPR Alliance

Chameleon Labs 500 Series 581 Class AB Microphone Preamp Features:

  • Discrete Class AB Circuit
    API 500 series compatible card
    Powered by CPS-501 Powered Chassis or any 500 series compatible power supply
    Fully balanced transformer mic input, which can be upgraded to a vintage style Carnhill unit
    Transformer balanced output
    300 Ohms or 1.2K Ohms mic input selector
    48VDC phantom power selector
    Hi-Z Direct Input for instruments on the front panel
    Output level control functions as a fader when going straight to D.A.W. or tape
    LED illuminated push buttons for visual confirmation
    LED Metering (Power, Signal, +4dB, Peak)


Chameleon Labs 500 Series 581 Class AB Microphone Preamp Specifications:

  • Microphone Input Impedance: 300O or 1,200O
    Microphone Amplifier Gain: +25 dB to +80 dB in 5 dB steps
    Output Impedance: 100O Noise: -115.5 dB
    Maximum Output: +26 dB into 600O
    Frequency Response: 20Hz – 20 kHz +/- 1 dB.
    Weight: 2.8lb.
    Dimensions (WxHxD): 1.5” x 5.25”
    Depth to Rear of Mounting Surface: 5.938” =/- 0.02”
    Power Requirements: +/- 16 V @ = 130 ma, +48 V @ 5 ma
    One-year warranty


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