TOA M-864D
4RU 8-Channel Digital Stereo Mixer


The TOA M-864D is a 4U rack mountable digital stereo mixer that features 8 mono Mic/Line input channels...
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TOA M-864D
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The TOA M-864D is a 4U rack mountable digital stereo mixer that features 8 mono Mic/Line input channels, 7 stereo input channels and 6 output channels including 4 bus assignable monaural output channels and 1 stereo recording output channel. It is equipped with Automatic Resonance Control (ARC) function which automatically creates an appropriate equalization curve based on measuring the acoustic characteristics inherent in an architectural space, thus improving sound clarity. The M-864D also features DPS functions such as Feedback Suppressor (FBS), Automatic stereo input mute (AUTO MUTE or Ducker) and Equalizer. Advanced acoustic compensation can be automatically performed without using an acoustic measuring instruments. Furnished with various function setting buttons and 14 analog volume faders, the M-864D can be operated without the need or use of a PC. However, it can also be operated by connecting the PC or optional Remote control panel. It can be mounted in an EIA standard component rack (4U size).

TOA M-864D Specifications:

  • Frequency Response:  20 Hz – 20 kHz
  • Sampling Frequency:  48 kHz
  • Dynamic Range:  100dB or more (IHF-A weighted)
  • Distortion:  0.03% or less, 1kHz, +4dBinput/output, 20 Hz – 20 kHz BPF
  • Crosstalk:  -80dB or less, 1 kHz
  • Input:
    • 8 monaural input channels, removable terminal block (3P), Phantom power (+24V DC, 10mA, ON/OFF switchable for each channel), Gain setting (settable for each channel)
    • 7 stereo input (L, R) channels (1-A, 1-B, 1-C, 2-A, 2-B, 2-C, front mounted input), RCA jack (stereo mini jack provided on the front panel): -10dB (max. +10dB), 10k Trim gain for each individual channel: - to 0dB (except front mounted input)
  • Output:   4 output channels, +4dB (max.+24dB), applicable load 600 or more, electronically-balanced, removableterminal block (3P) 1 recording output (L, R) channel: -10dB* (max. +10dB*),applicable load 1k or more, RCA jack, Gain is adjustable
  • Contact Input:  8 channels, open voltage: 24V DC,short-circuit current: 5mA, removable terminal block (10P)
  • Contact Output:  8 channels, no-voltage makecontact, contactcapacity: 24V DC/100mA, removable terminal block (10P)
  • Remote Control Panel:
    • 2 channels, Maximum number of units:  8 units per channel
    • 24V DC input x 2, termination ON/OFF switch x 1, removable terminal block (10P)
    • Type of cable:  Shielded CPEV cable (a pair of data cable and a pair of power supply cable) or shielded Cat 5 twisted pair cable for LAN (CAT5-STP)
  • Network:
    • Network I/F:  1 channel of 10BASE-TX (auto-negotiation), RJ45 connector, connection via switching hub
    • Network protocol:  TCP/IP
    • Connection cable:  Shielded Cat. 5 or higher twisted pair cable for LAN (CAT5-STP or better)
    • Maximum cable length:  100m (between M-864D and switching hub)
    • Preset Memory:  16
  • Signal Processing:
    • Automatic Resonance Control (ARC) Function
    • Feedback Suppressor Function
    • Filter:  8 channels (each monaural input channel), high-pass filter: 20 Hz – 20 kHz
    • Tone Controller: BASS, MID, TREBLE
    • Paranetric Equalizer:  20 Hz – 20 kHz, 15 dB, 4 channels (each output channel)
    • Matrix:  12 x 4
    • Crosspoint Gain:  - to 0dB in 1dB steps
    • Auto Mute Function
  • Function:
    • Input PAD control
    • Low cut control
    • Analog output attenuator control
    • Front panel operation lock function
    • Stereo summing function
    • Function setting panel
  • Front Panel Section:
    • Input Level Indicator
    • Output Level Indicator
    • ARC Measuring Start Switch:  ON/OFF switch
    • Feedback Suppressor (FBS) Function:  ON/OFF switch
    • Low Cut:  ON/OFF switch
    • Stereo Summing:  ON/OFF switch
    • Tone Control:  BASS/MID/TREBLE
    • Monaural Input
    • Analog Setting:  Gain setting
    • PAD ON/OFF
    • Phantom power ON/OFF
    • Stereo Input
    • Analog Setting:  Trim setting
    • REC OUT gain setting
    • Preset Memory switch
    • Front Panel Operation Lock switch
    • Operation Status Indication
    • Analog Volume Fader

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