833 User Guide
53
Specications
Specications are subject to change without prior notice.
For the latest information available on all Sound Devices products,
visit our website: www.sounddevices.com.
FREQUENCY RESPONSE
10 Hz to 80 kHz ± 0.5 dB (192 kHz sample rate, re 1 kHz)
THD + NOISE
0.005% max (mic in, 1 kHz, 22 Hz–22 kHz BW, trim at 20, fader at 0,
-10 dBu in)
EQUIVALENT INPUT NOISE
-131 dBV (-129 dBu) max (mic in, A-weighting, 76 dB gain, 150 ohm
source impedance)
PROCESSING ENGINE
Highly extensible, full FPGA-based audio processing, 3 FPGAs
Six-way ARM multiprocessor system
64-bit audio processing precision
INPUTS
Mic/Line inputs: 6 total, all fully featured; 3 on full-size XLR, 3 on TA3
Mic-level inputs: (XLR, TA3): Class-A, discrete differential long-tail pair,
4k ohm input impedance
Line-level inputs: (XLR, TA3,): active-balanced, 4k ohm input
impedance
48V phantom: full 10 mA to all 6 inputs simultaneously
8 Total analog inputs: 6 mic-line inputs, 2 on returns
12 Total analog inputs: 8 mic-line inputs, 4 on returns
AES3 or AES42 available on XLR input 1
AES42: +10 V, 250 mA available, mode-1, auto-ASRC
USB Audio: 2 inputs
SL-2 inputs: SuperSlot or UniSlot
Aux (3.5 mm): unbalanced 2-channel, 4k ohm input impedance
Com Rtn (TA3, 3.5mm) balanced, 1-channel, 8k ohm input impedance
External Slate Mic (TA5): balanced, 8k ohm input impedance, menu-
selectable 12 V phantom
MAXIMUM INPUT LEVEL
Mic: +8 dBu (2.0 Vrms)
Line: +28 dBu (19.5 Vrms)
Aux: +18 dBu (6.2 Vrms)
Com Rtn: +24 dBu (12.3 Vrms)
External Slate Mic: +12 dBu (3.2 Vrms)
BUSES
6 Buses (L, R, 1-4)
Left and Right Mix Bus receives post-fade isolated channels. Optional
NoiseAssist plugin instances can be applied to Left and/or Right Mix
Buses.
Buses 1-4 can receive pre-fade, post-fade, or independent send level
from isolated channels, Return, and Com Return.
HIGH-PASS FILTERS
Adjustable 10 Hz to 320 Hz, 18 dB/oct. 1st stage analog (before
preamp), 2nd stage digital.
LIMITERS
Limiters available at all channels, buses, headphones, for all sample
rates
Analog rst stage, all subsequent stages digital
Attack time: adjustable 1 to 200 ms
Release time: adjustable, 50 ms to 1000 ms
Threshold: adjustable, -2 dBFS to -12 dBFS
Selectable ratio: inf:1, 20:1, 18:1, 16:1, 14:1, 12:1, 10:1
Knee: soft, hard
COMPRESSORS
Compressors available at all channels (pre or post-fade) and buses for
all sample rates
Attack time: adjustable, 1 to 200 ms
Release time: adjustable, 50 ms to 1000 ms
Threshold: adjustable, 0 dBFS to -40 dBFS
Selectable ratio: adjustable, 1:1 to 20:1
Knee: soft, hard
DELAY
Channel Adjustable 0-50 ms
Output Adjustable 0-500 ms
MAXIMUM GAIN
Trim stage (mic input): 76 dB
Trim stage (line input): 50 dB
Fader stage: 16 dB
Bus stage: 16 dB
Headphone stage: 20 dB
Mic-to-Line: 108 dB
Mic-to-Headphone: 112 dB
TA5 (along with mic input pins) for single connection to headset + mic
High output, 4 ohm output impedance, 400 mW + 400 mW at each
connector, all individually driven
Compatible with headphones of any impedance
OUTPUTS
XLR (L, R) active-balanced, 250/3.2k/120 ohms (mic/-10/line)
TA3 (X1/X2) active-balanced, 250/3.2k/120 ohms (mic/-10/line)
3.5mm (X3/X4): unbalanced, stereo, 1.8k ohms
HEADPHONE OUTPUTS
¼”, 3.5 mm
TA5 (along with mic input pins) for single connection to headset + mic
High output, 4 ohm output impedance, 400 mW + 400 mW at each
connector, all individually driven
Compatible with headphones of any impedance
MAXIMUM OUTPUT LEVEL
(all into 10k load)
Line: +20 dBu (7.8 Vrms)
“-10”: +6 dBu (1.5 Vrms)
Mic: -20 dBu (0.078 Vrms)
X3/X4 Out: +6 dBu (1.5 Vrms)
Headphone outputs (¼”, TA-5): +14 dBu (4.0 Vrms)
A/D CONVERTERS
32-bit, 120 dB, A-weighted dynamic range typical
Sampling rates 44.1 kHz, 47.952 kHz, 48 kHz, 48.048 kHz, 88.2 kHz,
96 kHz, 192 kHz
DIGITAL OUTPUTS
AES3 transformer-balanced, in pairs; 1-2 (XLR-L), 3-4 (XLR-R), 110
ohm, 2 V p-p, AES and S/PDIF compatible
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