Aviom AV-M8
8 Channel Mic Input Module for Pro16 System


The AV-M8 Mic Input Module provides eight mic-level inputs to a Pro16 system. Two channels also include a 20dB switchable pad for line-level inputs. Eight channels of digital audio may also be input via ADAT, from a second AV-M8 module. The unit may be mounted in a rack or to a table or podium, using the reversible mounting flanges or detachable rack ears.

Analog audio is input via eight latching 5.0mm Euroblock connectors. Each analog input channel features configuration DIP switches for individually selectable gain settings, +48V phantom power, and low cut filter.

Analog input channels are routed to Channels 1-8 in the A-Net stream, while channels input via ADAT become A-Net Channels 9-16. Stereo linking for all eight A-Net channel pairs is supported through an eight-position rear-panel DIP switch.

A-Net connections include A-Net Out and A-Net Expansion, using locking Neutrik EtherCon connectors. The A-Net Expansion jack allows up to 32 channels to be carried ona  single Cat-5e cable, in either 32x0 or 16x16 configurations. Larger systems (up to 64 channels on a cable) can be built using Aviom's AN-16SBR System Bridge. Pro16 A-Net supports Cat-5e cable runs up to 500ft/150m between devices. For installations requiring longer cable runs, single- or multi-mode fiber optics may be utilized, using certain standard third-party media converters.

The AV-M8 is compatible with all Pro16 Series products.


  • Converts eight analog audio channels to a Pro16 A-Net digital stream
  • ADAT In and ADAT Out for cascading two AV-M8 modules
  • 48kHz, 24-bit A/D converters
  • Per-channel controls for gain, +48V phantom power, and low cut filter
  • 20dB switchable pad (Channels 1 and 2)
  • Stereo Link per channel pair
  • Reversible mounting flanges and rack ears


  • Analog Audio Inputs
    6 mic-level, 2 balanced line- or mic-level
    8 female Euroblock connectors, 5.0mm, panel-mount
    Screw terminal: Audio+; Audio-; Ground
    8 male Euroblock connectors supplied box
  • A/D Conversion: 48kHz, 24-bit
  • Gain Settings: +16dB to +64dB (10 settings)
    6-position DIP switch, per channel
  • Max. Input Level: Mic: -2dBu; Line: +18dBu
  • Stereo Operation: Stereo Link, per channel pair; Two-position switch (Normal, Link)
  • ADAT
    1 ADAT In, 48kHz, 8 channels routed to A-Net Out, Channels 9-16
    1 ADAT Out, 48kHz, 8 channels routed from analog inputs
  • Input Impedance
    Channels 1-2, without pad: 2.48k ohms
    Channels 1-2, with pad: 5.63 ohms
    Channels 3-8: 2.68k ohms
  • Freq. Response: 4Hz-22kHz +0.2dB/-3dB
  • THD+N: <0.003%
  • Crosstalk: -90dB
  • Signal to Noise (unweighted): A/D: -105dB
  • Low Cut Filter: -3dB @ 85kHz, -18dB per octave
  • Phantom Power: +48 volts, per channel
  • Pad: 20dB, switchable, channels 1 and 2 only
  • Mic Input
    EIN (Equivalent Input Noise): -128dBu
    (Rs = 150 ohms, 20kHz BW, Gain = +60dB)
    CMRR (Common Mode Rejection Ratio): 80dB @ 120Hz (Gain = +60dB)
  • Bit Error Rate (BER): 10-12
  • Pro16 A-Net
    Out: 1; Expansion: 1; EtherCon connectors
    A-Net Expansion combines two A-Net streams (32 channels of audio onto one Cat-5e cable
    Uses unshielded Cat-5e UTP (or better) cable
  • Latency: 0.880 msec (measured from analog input to analog output)
  • Power Supply: Internal, universal switching type; IEC jack
  • Voltage: 100-240VAC, 50-60Hz, 60W; Fuse: 250VAC, F4AL
  • Dimensions: 19" wide x 9.25" deep; 1U high
  • Weight: 8 lbs
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