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Mic/Line Input Card for the AllFrame


The C4m Mic/Line Input Card provides four remote-controllable mic/line-level inputs for modular AllFrame systems.
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Our Price: $800.00
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The C4m Mic/Line Input Card provides four remote-controllable mic/line-level inputs for modular AllFrame systems. Each preamp offers the pristine archival-quality audio that Aviom systems are known for. Essential channels strip controls—gain, phantom power, low-cut filter, and phase are individually controllable.

Up to six C4m cards can be installed in a single F6, the host frame for the modular AllFrame system, putting up to 24 remote controlled mic preamps in a single location. Mix and match I/O cards to create custom Pro64 devices configured for your specific needs.

The C4m card's four remote-controllable analog mic- or line-level inputs feature the same mic preamp circuitry found in the state-of-the-art 6416m Mic Input Module and provide clean, transparent A-to-D conversion without compromise. Once digitized, the signals can be routed anywhere in the Pro64 network and output in a variety of formats including analog line-level, mic level, AES3 digital and/or directly into a Yamaha console with a 6416Y2 A-Net Card installed.

The preamp channel strip settings on the C4m inputs can be remote controlled from an MCS Mic Control Surface, select Yamaha® digital consoles by using the Pro64 network's m-control feature, or from the Pro64 Network Manager software.

The modular nature of the I/O cards in an AllFrame system allow the user to reconfigure the network's I/O devices to suit the needs of the application in just minutes. Imagine trying to do that with traditional analog cabling.


  • Clean, transparent, archival-quality audio
  • Four XLR female inputs per card
  • Remote controllable from RCI/MCS, Yamaha consoles, or Pro64 Network Manager


  • Inputs: 4 channels; XLR; Mic or line-level
  • XLR Inputs: Pin 1: Shield; Pin 2: Hot; Pin 3: Cold
  • Differential Input Impedance: 3.6k ohms
  • Input Gain Range: 0-55dB, variable, in 1dB increments
  • Maximum Input Level Resulting in 0dBFS:
    • 0dB gain, Pad on = +24dBu
    • 0dB gain, Pad off = 0dBu
    • 55dB gain, Pad on = -31dBu
    • 55dB gain, Pad off = -55dBu
  • Pad: -24dB, switchable per channel
  • Low Cut Filter: -3dB @85Hz, -18dB per octave; per channel
  • Phantom Power: +48V, individually selectable per channel
  • Frequency Response
    • +/- 0.3dB 20-23kHz at 48kHz
    • +/- 0.3dB 20-45kHz at 96kHz
    • +/- 0.3dB 20-53kHz at 192kHz
    • -3dB @ 2Hz (at all sample rates)
  • THD+N
    • 0.0015% @1.0kHz, -10dBFS
    • 0.007% @ 1.0kHz, - 1dBFS
  • Dynamic Range (noise floor): 112dB
  • Crosstalk: -110dB @1kHz. 35dB gain
  • Equivalent Input Noise (EIN): -127dBu
  • CMRR (common mode rejection ratio): 78dB @ 1.0kHz / 75dB @ 10kHz typical
  • Threaded Inserts: PEM FEOX-440; Use size #4 machine screw with 40 threads per inch.
  • Dimensions: 5.2" x 1.9" x 3.01"
  • Weight: 0.5 pound (0.22 kg)

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