Theta Digital Casablanca III, Owner'S Manual

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Appendix E Specifications
Digital Input Section (32KHz, 44.1KHz, 48KHz, 88.2KHz, 96KHz compatible):
Main digital input board:
Inputs: 10:6 coaxial (RCA), 4 optical (2 TosLink, 2 open for optional AT&T).
Outputs: 2 digital tape out coaxial on RCA jacks.
Auxiliary Digital Input board :
Inputs: 6: 2 AC-3 RF (RCA) for laserdisc Dolby Digital, 1 AES/EBU (XLR), 1 BNC, 2 optical (1 TosLink,
1 open for optional AT&T).
Outputs: None.
Analog Input Section:
Inputs: 6 stereo pair on RCA jacks.
Input Level: 200 mV rms minimum, 22v rms maximum.
Input Impedance: 10 K
Ω
.
Outputs: 2 stereo pair on RCA jacks for analog tape out.
Tape Output Impedance: 36.5 ohms
A/D Conversion: 20-bit Delta-Sigma at 48KHz; separate delta-sigma modulator and high performance decimating
digital filter.
Frequency response: +-.2dB 20Hz - 20KHz
THD+Noise: 0.0025%
Dynamic Range: 104dB
Signal to Noise Ratio: 104dB
Input volume control: Theta proprietary switched resistor network in the analog domain.
Automatic DC canceling circuit.
Processing (DSP) Section:
All DSP processing is 24bit with 56 bit accumulator. Some processes, such as low pass crossovers, are 48bit with 56 bit
results.
Channels Supported: Left, Right, Center, Left Surround, Right Surround, Center Surround, Left Front Sub, Right Front Sub,
Left Surround Sub, Right surround Sub, Center Sub, Left Side, Right Side.
Modes: Matrix, Special Matrix, Dolby Pro Logic, Dolby Digital, DTS, Stereo, Mono, Analog Direct,
Analog Matrix, Circle Surround (optional).
Post Processes (applied in addition to selected mode): Stereo Front/Rear, Party, Center Spread.
EQ: Four levels of high frequency roll-off (shelf-type) to compensate for overly bright sources.
Crossovers: Separate crossovers for each of the following: Front Left/Right, Front Center, Surround Left/Right, Surround
Center. Three types supported: Linkwitz-Riley, Butterworth, Phase Perfect. Crossover frequencies: 40Hz,
50Hz, 63Hz, 80Hz, 125Hz, 160Hz. Crossover slopes: 6dB, 12dB, 18dB, 24dB per octave. Butterworth
crossovers have separate adjustments for high and low pass.
Subwoofers: Up to five subwoofers supported. 1- single subwoofer, 2- left/right subwoofers, 2- front/rear subwoofers, 3-
left/right/surround subwoofers, 4- left/right/surround left/surround right subwoofers, 5-
left/center/right/surround left/surround right subwoofers. Each subwoofer can be set to receive a full range
signal in case the sub has an internal crossover that cannot be defeated.
LFE: Phase adjustment (0, 180 degrees), level adjustment (0dB to -30dB, off)
Delays: Master (applies to all channels) delay for syncing with video processors, comprehensive separate delay settings
for all speakers including subwoofers.
Analog Audio Outputs: See additional pages.
Control Section:
RS232: Complete ability to control and read status of every operational parameter of unit.
IR Receiver: 3.5mm stereo phone jack (rear panel), unmodulated.
IR Receiver: Front panel IR window for hand-held remote control.
Remote Power: 4 rear panel 3.5mm mono phone jacks: +12VDC triggered (Can be set to Pulse or Continuous
DC), pulse time variable from 0 to 255 mSec.
Specifications subject to change without notice. 113