Model 76DA Central Controller

• General Audio:
• Supported Sample Rates: 32, 44.1, 48, 88.2, 96, 176.4, and 192 kHz
• Word Length: 24 bits maximum
• Internal Processing: 32 bits
• Input-to-Output Latency: two samples (e.g., 0.042 milliseconds @ 48 kHz sample rate)

Digital Audio Inputs

• 5 (18 audio channels)
• Configuration: two surround (5.1) and three stereo
• Type: AES3 unbalanced (75 ohms/1 Vpp)
• Connectors: BNC (per IEC 60169-8 Amendment 2)

Sample Rate Conversion (SRC)

• Application: available on Stereo Input C
• Input Sample Rate Range: 8 to 216 kHz, limited to 1/6 to 6 times the output sample rate
• Latency: 1 millisecond, nominal

Sync Source

• configured to follow L/R of currently selected input or signal connected to sync input

Sync Input

• Compatible Sources: word clock, DARS (AES11), bi-level video, tri-level video
• Jitter: 4 ns pp maximum
• Connector: BNC (per IEC 60169-8 Amendment 2)
• Termination: 75 ohms, selectable on/off

Digital Monitor Outputs

• 16 (eight pairs)
• Configuration: organized as two surround (5.1) and two stereo
• Dynamic Range: >135 dB
• Type: AES3 balanced (110 ohms/5 Vpp) or unbalanced (75 ohms/1 Vpp), selectable
• Connector: 25-pin female D-subminiature (DB-25F)

Analog Monitor Outputs

• 8
• Configuration: organized as one surround (5.1) and one stereo (2-channel)
• Type: electronically balanced, source impedance 200 ohms
• Nominal Level: +4.0 dBu @ ・0 dBFS input source and level control at maximum setting
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• Maximum Level: +24 dBu into 2000 (2 k) ohms or greater
• Frequency Response, Digital Inputs to Analog Monitor Outputs: 10 Hz-20 kHz +0.0/・.3 dB @ 48 kHz sample rate; ・ dB @ 64 kHz
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• Distortion (THD+N): <0.002%, ・ dBFS, 20-22 kHz, 22 kHz bandwidth
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• S/N Ratio: 89 dB, ref +4 dBu output
• Dynamic Range: >109 dB
• Crosstalk: ・8 dB at 1 kHz; ・7 dB at 16 kHz, ref ・ dBFS input
tConnector: 25-pin female D-subminiature (DB-25F)

Configurable Input Delay

• 0 to 340 milliseconds @ 48 kHz sample rate (scales up or down depending on actual sample rate)
• Post-Fader Monitor Output Level Offsets: each surround and stereo channel independently adjustable in 0.5-dB steps over a ±12-dB range. (Digital and analog outputs associated with a specific channel share the same setting.)

Bass Management

• Supported Sample Rates: 44.1, 48, 88.2, and 96 kHz only
• Crossover Frequency and Type: ・ dB @ 40, 50, 60, or 80 Hz, symmetrical for low-pass and high-pass filters, maximally flat
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• Filter Slope: 12 or 24 dB/octave
• Overall Operation: independent on/off selectable for surround and stereo post-fader monitor outputs

Downmix

• Functions: surround to stereo, stereo to mono
• Surround to Stereo:
• L @ 0 or ・ dB;
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• R @ 0 or ・ dB;
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• C @ ・ or ・ dB summed with L and R;
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• LFE @ full attenuation or ・ dB summed with L and R;
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• LS @ ・ or ・ dB summed with L;
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• RS @ ・ or ・ dB summed with R;
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• C, SUB, LS, and RS monitor outputs mute
• Stereo to Mono:
• L @ ・ dB summed with R @ ・ dB to C;
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• L, R, LS, RS, and SUB monitor outputs mute
• For a surround input this results in the C output being the sum of L @ ・ or ・ dB, R @ ・ or ・ dB; C @ ・ or ・ dB, LFE @ full attenuation or ・ dB; LS @ ・ or ・ dB, and RS @ ・ or ・ dB.
窶・ or 窶

Control Console Interface

• Type: RS-485, 115.2 kbit/s, 8-1-N
• Polling Interval: 50 milliseconds
• Power: 12 Vdc, 500 mA maximum
• Connector: 9-pin female D-subminiature (DE-9F)

Remote Control Inputs

• 2
• Functions: remote mute all, remote dim
• Type: 5 Vdc logic, activates on closure to system common
• Connector: 9-pin female D-subminiature (DE-9F)

AC Mains

• Requirement: 100 to 230 V, +10/・5%, 50/60 Hz, 15 W maximum
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• Connector: 3-blade, IEC 320 C14-compatible (mates with IEC 320 C13)

Dimensions

• 19.00 inches wide (48.3 cm)
• 1.72 inches high (4.4 cm)
• 7.00 inches deep (17.8 cm)

Mounting

• one space (1U) in a standard 19-inch rack

Weight

• 3.6 pounds (1.6 kg)

Model 77 Control Console

Application

• up to four Model 77 Control Consoles can be connected to a Model 76D Central Controller

Power

• 12 Vdc nominal (9 Vdc minimum), maximum current 100 mA, provided by Model 76D Central Controller

Control Data

• Type: RS-485
• Data Rate/Format: 115.2 kbit/s, 8-N-1
• Connector: 9-pin female D-subminiature (DE-9F)

Dimensions (Overall)

• 7.20 inches wide (18.3 cm)
• 2.20 inches high (5.6 cm)
• 5.40 inches deep (13.7 cm)

Weight

• 1.7 pounds (0.8 kg)

Model 71 Control Console

Application

• up to three Model 71 Control Consoles can be connected to a Model 76D Central Controller

Power

• 12 Vdc nominal (9 Vdc minimum), maximum current 35 mA, provided by Model 76D Central Controller

Control Data

• Type: RS-485
• Data Rate/Format: 115.2 kbit/s, 8-N-1
• Connector: 9-pin female D-subminiature (DE-9F)

Dimensions (Overall)

• 3.20 inches wide (8.1 cm)
• 2.20 inches high (5.6 cm)
• 4.10 inches deep (10.4 cm)

Weight

• 0.8 pounds (0.4 kg)