- Description
Details
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 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). Automatic Resonance Control function automatically creates an appropriate equalization curve based on measuring the acoustic characteristics inherent in an architectural space, thus improving sound clarity.- Features
Features
- Automatic Resonance Control (ARC) measurement and processing algorithm that optimizes speech and sound clarity for individual acoustic environments.
- Feedback Suppressor (FBS) function that eliminates feedback caused by carrying the microphone from place to place.
- Automatic stereo input mute (Auto Mute or Ducker) function that mutes stereo input automatically when detecting a monaural control signal.
- Analog-feel fine-tuning by slider control.
- Front-mounted stereo input allows connection of digital audio player.
- Preset memory enabling operators to store user-specified settings in response to specific needs.
- Dedicated GUI software facilitating higher-precision parameter setting adjustment on PC via Ethernet LAN.
- Stand-alone installation (4U rack-mountable).
- Connection of up to five M-864D mixers with 22 input and 6 output channels per unit.
- Finer speaker setting possible when used in combination with optional Digital Speaker Processor DP-SP3.
- Specification
Frequency Response 20Hz – 20kHz Sampling Frequency 48kHz Dynamic Range 100dB or more (IHF-A weighted) Distortion 0.03% or less, 1kHz, +4dB* input/output, 20Hz – 20kHz BPF Crosstalk -80dB or less, 1kHz Input 8 monaural input channels, removable terminal block (3P) Input 7 stereo input (L, R) channels RCA jack -10dB* (max. +10dB*), 10kΩ Trim gain for each individual channel -∞ to 0dB (except front mounted input) Output 4 output channels, +4dB, applicable load 600Ω,electronically-balanced, removable terminal blo 1 recording output (L, R) channel -10dB* (max. +10dB*), applicable load1kΩ or more, RCA jackGain is adjustable Contact Input 8 channels, open voltage: 24V DC, short-circuit current: 5mA,removable terminal block (10P) Contact Output 8 channels, no-voltage make contact, contactcapacity: 24V DC/100mA,removable terminal block (10P) Remote Control Panel 2 channels, Maximum number of units: 8 units per channel Remote Control Panel 24V DC input x 2, termination ON/OFF switch x 1, removable terminal block (10P) Remote Control Panel Type of cable:Shielded CPEV cable (a pair of data cable and a pair of power supply Network Network I/F: 1 channel of 10BASE-TX (auto-negotiation),RJ45 connector, connection via switching hu Network Network protocol: TCP/IP Network Connection cable: Shielded Cat. 5 or higher twisted pair cable for LAN Network Maximum cable length: 100m (between M-864D and switching hub) Preset Memory 16 Signal Processing Automatic Resonance Control (ARC) FunctionFeedback Suppressor Function Filter 8 channels (each monaural input channel), high-pass filter: 20Hz – 20kHz Tone Controller BASS, MID, TREBLE Paranetric Equalizer 20Hz – 20kHz, ±15dB, 4 channels (each output channel) Matrix 12 × 4 Crosspoint Gain -∞ to 0dB in 1dB steps Function Input PAD control, Low cut control, Analog output attenuator control Function 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/TRWBLE, 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 System Lock System lock key x 1, System lock indicator x 1 Operation Status Indication Operation status indicator x 3 Contact Input 8 channels, open voltage: 24 V DC, short-circuit current: 5 mA,removable terminal block (10 P) Contact output 8 channels, no-voltage make contact,contact capacity: 24 V DC/100 mA,removable terminal block (10 P) Network 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 or 110 yd (between M-864D and switching hub) Operating Temperature 0 to 40 ºC (32 to 104 ºF) Operating Humidity 90 %RH (no condensation) Finish Panel: Aluminum, hairline, black, Case: Surface-treated steel plate Dimensions 482.6 (w) x 177.1 (h) x 157.2 (d) mm (19” x 6.97” x 6.19”) Weight 11.24 lbs (5.1 kg) - Reviews
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