TOA Digital Stereo Mixer - M-864D CU

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Literature

The M-864D is a 4U rack mountable Digital stereo mixer having15 input channels including 8 monaural input channels and 7 stereo input channels, 6 output channels including 4 monaural output channels and 1 stereo recording output channel, and 4 bus channels. It is equipped with digital signal processing functions such as Automatic resonance control function (ARC(*1)), Feedback suppressor function (FBS), Automatic stereo input mute function (AUTO MUTE or Ducker), and Equalizer. Advanced acoustic compensation can be automatically performed without using an acoustic measuring instrument. Furnished with various function setting buttons and 14 analog volume faders, the M-864D can be operated without need for 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 component rack (4U size). (*1) Automatic Resonance Control function automatically creates the filter curve to improve sound clarity by measuring the acoustic characteristics inherent in architectural space.

Specifications
Distortion0.03 % or less, 1 kHz, +4 dB(*2) input/output, 20 Hz - 20 kHz BPF
Sampling Frequency48 kHz
Dynamic Range100 dB or more
Power Consumption30 W
Frequency Response20 Hz - 20 kHz, ±1 dB
Power Source100-120 V AC, 60 Hz
InputMonaural input, 8 channels, removable terminal block (3P), Phantom power (+24 V DC, 10 mA, ON/OFF switchable for each channel), Gain setting (settable for each channel), :PAD ON Gain min., +4 dB(*2) (max. +24 dB(*2)), 10 kΩ, electronically-balanced, Gain max., -14 dB(*2) (max. +6 dB(*2)), 10 kΩ, electronically-balanced, :PAD OFF Gain min., -10 dB(*2) (max. +10 dB(*2)), 7 kΩ, electronically-balanced, Gain max., -56 dB(*2) (max. -36 dB(*2)), 7 kΩ, electronically-balanced, Stereo Input (L, R), 7 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), : -10 dB(*2) (max. +10 dB(*2)), 10 kΩ, " Trim gain for each individual channel: - to 0 dB (except front-mounted input), ※ 1-A (L), 1-B (L), and 1-C (L) are mixed after passing through each trim gain circuit, (the same applies to R channel), ※ 2-A (L), 2-B (L), and 2-C (L) are mixed with front-mounted input after passing, " through each trim gain circuit (the same applies to R channel)
Crosstalk-80 dB or less, 1 kHz
OutputOutput, 4 channels, +4 dB(*2) (max. +24 dB(*2)), applicable load 600 Ω or more, electronically-balanced, removable terminal block (3P), REC OUT (L, R): -10 dB(*2) (max. +10 dB(*2)), applicable load 1 kΩ or more, RCA jack, Gain is adjustable.
AD Converter24 bits
DA Converter24 bits
Preset Memory16
Automatic Resonance Control (ARC) FunctionAutomatic EQ curve creation by ARC, 4 channels (each output channel), settable independently on each channel, ARC measuring start switch ×1, ON/OFF LED ×1
Feedback Suppressor FunctionFeedback suppressor filter creation, 8 channels (each monaural input channel), settable independently on each channel, ON/OFF switch ×8, ON/OFF LED ×8
Filter8 channels (each monaural input channel), settable independently on each channel, high-pass filter: 20 Hz - 20 kHz
Tone ControllerBASS, Low-shelving filter: 20 - 500 Hz, ±15 dB, MID, parametric equalizer: 20 Hz - 20 kHz, ±15 dB, Q: 0.267 - 69.249, TREABLE, high-shelving filter: 6 - 20 kHz, ±15 dB, 10 channels (each monaural input channel, each stereo mixing input channel), settable independently on each channel
EqualizerParametric equalizer: 20 Hz - 20 kHz, ±15 dB, Q: 0.267 - 69.249, 4 channels (each output channel)
Matrix12×4
Crosspoint Gain- to 0 dB in 1 dB steps
Automatic Mute FunctionStereo input section matrix, independent control
FunctionInput PAD (-16 dB) control, low cut (cutoff frequency: 100 Hz) control, analog output attenuator (-6 dB, -12 dB, -18 dB, -24 dB, -36 dB, -42 dB) control, front panel operation lock function, stereo summing function, function setting panel (3 rotary encoders)
Input Level Indicator3-point LED, 12 channels (each monaural input channel, stereo 1L, 1R, 2L, 2R)
Output Level Indicator8-point LED, 4 channels (each output channel)
Auto Resonance Control (ARC) MeasurementARC measuring start switch ×1, ON/OFF LED ×1
Feedback Suppressor (FBS) FunctionON/OFF switch ×8, ON/OFF LED ×8
Low CutON/OFF switch ×8, ON/OFF LED ×8
Stereo SummingON/OFF switch ×2, ON/OFF LED ×2
Tone ControlBASS, MID, TREBLE/Settable on the function setting panel, 10 channels, (each monaural input channel, stereo 1L, 1R, 2L, 2R)
Monaural Input, Analog SettingGain setting, PAD ON/OFF, Phantom power ON/OFF, Settable on the function setting panel, 8 channels (each monaural input channel)
Stereo Input, Analog SettingTrim setting, Settable on the function setting panel, 6 channels (1-A, 1-B, 1-C), (2-A, 2-B, 2-C)
REC OUT, Gain SettingGain setting, Settable on the function setting panel, 2 channels (REC OUT L, REC OUT R)
Preset Memory SwitchingPreset selection switch ×4, ON/OFF LED ×4
Front Panel Operation LockOperation lock switch ×1, ON/OFF LED ×1
Operation Status IndicationOperation status LED ×3
Function Setting PanelRotary encoder ×3, 10-point position indication LED ×3, Function mode LED ×3
Analog Volume FaderInput volume fader ×10, Output volume fader ×4, 2 faders linkable with supplied gang bar
Contact Input8 channels, open voltage: 24 V DC, short-circuit current: 5 mA, removable terminal block (10P),
Contact output8 channels, no-voltage make contact, contact capacity: 24 V DC/100 mA, removable terminal block (10P),
Remote Control Panel2 channels, Maximum number of units: 8 units per channel, 24 V DC input ×2, termination ON/OFF switch ×1, removable terminal block (10P), Maximum total cable length (star wiring): 800 m (total for 2 channels), Maximum cable length (daisy chain wiring): 400 m per channel, Note: In daisy chain wiring, the number of units differs depending on the cable length., Star wiring and daisy chain wiring cannot be used together., 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)
NetworkNetwork I/F: 1 channel of 10BASE-T/100BASE-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, (Cat. 5-STP or better), Maximum cable length: 100 m (between M-864D and switching hub)
Operating Temperature0 ℃ to +40 ℃ (32 ゜F to 104 ゜F)
Operating Humidity90 %RH (no condensation)
FinishPanel: Aluminum, hairline, black, Case: Surface-treated steel plate
Dimensions482.6 (W) × 177.1 (H) × 157.2 (D) mm (19 × 6.97" × 6.19")"
Weight5.1 kg (11.24 lb)
AccessoriesPower supply cord (2 m (6.56 ft)) ×1, removable terminal plug (3P) ×12, large type removable terminal plug (10P) ×2, small type removable terminal plug (10P) ×1, fader gang bar ×4, protective cover ×1, CD-ROM (containing setup software) ×1
OptionPP-001T: Priority Paging Interface, between 9000 series to M-864D
OptionRemote control panel: ZM-9011/9012/9013/9014, AC adapter: AD-246(*3)
RequirementsCPU: Pentium 4, 2 GHz or faster, Memory: 1.5 GB or more (2 GB recommended), Display: 1024 × 768 resolution or higher, Free Hard Disk Space: 16 MB or more, however 600 MB or more is required for the 32-bit, version or 1.5 GB or more for the 64-bit version when, “.NET Framework“ is not yet installed, Optical Drive:CD-ROM drive, Network Adapter:10BASE-T or faster connection
OSWindows XP Service Pack 3 or later, Windows Vista (32/64-bit) Service Pack 1 or later, Windows 7 (32/64-bit)
Required Component.NET Framework 4 Client Profile

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