Sound Devices / Professional Audio
Sound Devices 833
SKU: ARM-REC-SD-833
The 833 brings professional location recording into a compact bag setup. Six microphone preamps feed an eight-channel mixer, with six buses and up to 12 recorded tracks for dialogue, documentary and small production work.
Key details
- Six microphone preamps; eight channels and six buses
- Record to the internal 256 GB SSD and two SD cards
- Integrated timecode
- Optional channel-expansion licences sold separately
RRP $11,000.00 AUD
Price $11,000.00 AUD
Save $0.00 AUD
Including GSTinc.
In stock
Available from ARM stock.
Contact ARM to confirm stock availability and your required configuration.
TECHNICAL DETAILS
Specifications
The details you need to plan your system. Expand a section to explore.
System overview
| Specification | Details |
|---|---|
| Microphone preamplifiers | 6 |
| Standard mixer channels | 8 |
| Standard recording tracks | 12: eight isolated channels plus four buses |
| Mix buses | 6: Left, Right and buses 1–4 |
| Optional +4 expansion | 12 channels and 16 tracks with separately purchased plugin |
| Processing | Three FPGAs; six-way ARM multiprocessor system; 64-bit audio processing |
| Analogue outputs | 6 |
| Dante | Not built in |
Analogue audio performance
| Specification | Details |
|---|---|
| Frequency response | 10 Hz–80 kHz, ±0.5 dB relative to 1 kHz, at 192 kHz sample rate |
| THD + noise | 0.005% maximum: microphone input, 1 kHz, 22 Hz–22 kHz bandwidth, trim 20 dB, fader 0 dB, −10 dBu input |
| Equivalent input noise | −131 dBV / −129 dBu maximum: A-weighted, 76 dB gain, 150-ohm source |
| A/D converters | 32-bit; typical 120 dB A-weighted dynamic range |
Inputs & microphone powering
| Specification | Details |
|---|---|
| Mic/line connectors | Three full-size XLR and three TA3 |
| Mic input circuit | Class-A discrete differential; 4 kΩ input impedance |
| Line inputs | Active balanced; 4 kΩ input impedance |
| Phantom power | 48 V; up to 10 mA on all six mic inputs simultaneously |
| Total analogue inputs | Eight: six mic/line plus two return channels |
| AES input | AES3 or AES42 on XLR input 1 |
| AES42 powering | 10 V, up to 250 mA; Mode 1 with automatic sample-rate conversion |
| USB audio input | Two channels |
| Aux input | 3.5 mm, unbalanced stereo; 4 kΩ |
| Com return | TA3 / 3.5 mm, balanced mono; 8 kΩ |
| External slate microphone | TA5, balanced; 8 kΩ; selectable 12 V phantom |
| Maximum mic input | +8 dBu / 2.0 Vrms |
| Maximum line input | +28 dBu / 19.5 Vrms |
| Maximum aux input | +18 dBu / 6.2 Vrms |
| Maximum com return | +24 dBu / 12.3 Vrms |
| Maximum external slate input | +12 dBu / 3.2 Vrms |
Outputs & headphone monitoring
| Specification | Details |
|---|---|
| Left / Right analogue | Active-balanced XLR |
| X1 / X2 analogue | Active-balanced TA3 |
| XLR / TA3 output impedance | 250 Ω at mic level; 3.2 kΩ at −10 setting; 120 Ω at line level |
| X3 / X4 analogue | Unbalanced stereo 3.5 mm; 1.8 kΩ output impedance |
| Maximum line output | +20 dBu / 7.8 Vrms into 10 kΩ |
| Maximum −10 output | +6 dBu / 1.5 Vrms into 10 kΩ |
| Maximum mic output | −20 dBu / 0.078 Vrms into 10 kΩ |
| Maximum X3 / X4 output | +6 dBu / 1.5 Vrms into 10 kΩ |
| AES3 outputs | Transformer balanced; channels 1–2 on XLR-L and 3–4 on XLR-R |
| AES3 electrical specification | 110 Ω; 2 V peak-to-peak; AES / S/PDIF compatible |
| Headphone connectors | ¼-inch, 3.5 mm and TA5 headset connection |
| Headphone amplifier | 4 Ω output impedance; 400 mW + 400 mW per connector, independently driven |
| Maximum headphone output | +14 dBu / 4.0 Vrms |
Routing, filters, EQ & gain
| Specification | Details |
|---|---|
| Routing | Physical inputs can be assigned through the routing matrix to channels, buses, tracks and outputs |
| Left / Right buses | Post-fader isolated-channel feeds |
| Buses 1–4 | Pre-fader, post-fader or independent sends from isolated channels, return and com return |
| Equalisation | Three-band channel EQ; selectable pre- or post-fader |
| High-pass filter | 10–320 Hz; 18 dB/octave; analogue stage before preamp plus digital stage |
| Channel delay | 0–50 ms |
| Output delay | 0–500 ms |
| Maximum microphone trim | 76 dB |
| Maximum line trim | 50 dB |
| Maximum fader gain | 16 dB |
| Maximum bus gain | 16 dB |
| Maximum headphone-stage gain | 20 dB |
| Maximum mic-to-line gain | 108 dB |
| Maximum mic-to-headphone gain | 112 dB |
Limiters & compressors
| Specification | Details |
|---|---|
| Limiter availability | Channels, buses and headphones at every sample rate |
| Limiter stages | Analogue first stage; subsequent digital stages |
| Limiter attack | 1–200 ms |
| Limiter release | 50–1,000 ms |
| Limiter threshold | −2 to −12 dBFS |
| Limiter ratios | ∞:1, 20:1, 18:1, 16:1, 14:1, 12:1 or 10:1 |
| Limiter knee | Soft or hard |
| Compressor availability | Channels, pre- or post-fader, and buses at every sample rate |
| Compressor attack | 1–200 ms |
| Compressor release | 50–1,000 ms |
| Compressor threshold | 0 to −40 dBFS |
| Compressor ratio | Adjustable from 1:1 to 20:1 |
| Compressor knee | Soft or hard |
Recording formats & media
| Specification | Details |
|---|---|
| Sample rates | 44.1, 47.952, 48, 48.048, 96 and 192 kHz |
| Recording bit depths | 16-bit, 24-bit and 32-bit float with supporting firmware |
| Internal media | 256 GB SSD |
| Removable media | Two SD card slots |
| Media management | 10% over-provisioning; exFAT formatting |
| Simultaneous recording | Internal SSD and both SD cards |
| WAV formats | Monophonic or polyphonic Broadcast WAV |
| Large-file format | Monophonic or polyphonic RF64; supports files over 4 GB |
| AAC recording | Two tracks at 48 kHz; 32, 64, 128, 192 or 256 kbps |
| Standard track allocation | Eight isolated channels plus four bus tracks |
| Expanded track allocation | 12 isolated channels plus four bus tracks with optional +4 plugin |
Automixing & optional noise suppression
| Specification | Details |
|---|---|
| Dugan Automixer | Up to eight channels on the Left / Right mix |
| MixAssist | Up to eight channels on the Left / Right mix |
| Noise suppression options | Separately purchased NoiseAssist or CEDAR sdnx plugins |
| Plugin instance options | Two, four or eight instances, according to purchased licence |
| Plugin routing | Isolated channels and / or buses |
| Noise reduction range | 0–20 dB |
| NoiseAssist sample rates | 44.1–48.048 kHz |
| CEDAR sdnx sample rates | 44.1–96 kHz |
| NoiseAssist latency | 0.77 ms at 48 kHz |
| CEDAR sdnx latency | 0.27 ms at 48 kHz; 0.14 ms at 96 kHz |
Timecode & synchronisation
| Specification | Details |
|---|---|
| Operating modes | Off, Record Run, Free Run, 24-hour Run and External, including automatic record and continuous external modes |
| Frame rates | 23.98, 24, 25, 29.97 DF, 29.97 ND, 30 DF and 30 ND |
| Clock accuracy | 0.1 ppm; approximately 0.25 frames per 24 hours |
| Timecode input | 20 kΩ; 0.3–3.0 V peak-to-peak / −17 to +3 dBu |
| Timecode output | 75 Ω; 5 V peak-to-peak / +7 dBu |
| Word-clock input | Selectable 10 kΩ / 75 Ω; 1–5 V peak-to-peak sensitivity |
| Word-clock output | 75 Ω; 5 V peak-to-peak at the selected sample rate |
USB, remote control & display
| Specification | Details |
|---|---|
| USB-C file transfer | USB 3.1 Gen 1 access to internal SSD and both SD cards |
| USB audio interface | Two inputs and two outputs |
| USB-A host | Keyboard, supported controllers and USB hubs |
| Fader control | CL-16, CL-12 and supported USB MIDI MCU controllers |
| Mobile control | SD-Remote via supported Bluetooth LE / USB device connections |
| Other control | USB keyboard and external timecode record trigger |
| Cloud delivery | Compatible with Viviana Cloud |
| LCD | 320 × 240 transflective display for sunlight visibility |
| Larger display | Available through the SD-Remote app on a connected device |
| Wireless integration | Optional SL-2, or Astral ARX16 / ARX8 with optional QuickDock |
Power & battery operation
| Specification | Details |
|---|---|
| External DC input | 10–18 V DC via locking TA4 |
| DC wiring | Pin 4 positive; pin 1 ground |
| Smart batteries | Battery telemetry supported with compatible battery and cable |
| Battery mounting | Two rear Sony-style L-mount slots |
| Battery charging | Two built-in chargers |
| Idle current at 12 V | 730 mA with all mic preamps off and no battery charging |
| Current with all preamps on | 920 mA at 12 V, without battery charging |
| High-rate recording current | 1.07 A at 12 V with all preamps on, 192 kHz recording to SSD and both SD cards; no battery charging |
| Power management | Unused preamps and internal circuits can be powered down |
Dimensions, weight & environment
| Specification | Details |
|---|---|
| Dimensions (H × W × D) | 51 × 220 × 170 mm / 2.0 × 8.7 × 6.6 inches |
| Weight | 1.25 kg / 2.75 lb, without batteries or packaging |
| Operating temperature | −20°C to +60°C |
| Operating humidity | 0–90% relative humidity, non-condensing |
| Storage temperature | −40°C to +85°C |
Included accessories
| Specification | Details |
|---|---|
| AC power supply | XL-WPTA4 |
| Bluetooth antenna | XL-ANT2.4 |
| LCD protection | One XL-LCD-PROTECT cover |
Technical specifications are based on Sound Devices’ published 833 specifications. Some features require current firmware. Standard configuration is eight channels / 12 tracks; the +4 plugin, noise suppression plugins, wireless receivers and integration accessories are optional and sold separately. Recording bit depth does not change the specified analogue input clipping limits.
Technical specifications: Sound Devices 833 product information. Reformatted for ARM.