Sound Devices 633 6-Input Field Production Mixer

The Sound Devices 633 is a compact, six-input mixer with integrated 10-track recorder featuring PowerSafe technology. It offers six analog inputs and records to SD and CompactFlash memory cards. The 633 is designed for audio professionals requiring go-anywhere portability, without compromising recording or mixing capability.

The 633 offers three high-bandwidth mic/ line inputs on XLR connectors (3+3), complete with phantom power, high-pass filter, input limiter and variable pan. Three additional line-level inputs on TA3 (mini-XLR) connectors offer flexibility for more complex productions. All inputs are assignable to its six output buses, left/right plus Aux 1/2/3/4.

All six inputs plus output buses left/right and Aux 1/2 can be recorded to individual tracks. The 633 offers 10-track 24-bit, 48 kHz uncompressed WAV recording (96 kHz and 192 kHz sampling up to six tracks) to SD and CompactFlash memory cards. The two cards can be set independently, recording either identical material for a real-time backup, or combinations of WAV and time code stamped MP3 files.

Powered by a unique Quad Power supply with PowerSafe technology, the unit is operational from any of four power sources. Sources can include external DC (12-18 V), two removable 7.2 V L-type lithium ion cells, and six internal AA batteries. The 633 automatically switches from one power supply to the next when power is exhausted or removed. With its combination of power sources, the 633 can operate for a full production day on batteries alone.

When all power sources are removed or depleted, the unit’s PowerSafe circuitry is activated. PowerSafe keeps the 633 operating for up to 10 seconds and ensures that all file operations are fully closed and the unit gracefully shuts down.

Two second power on-to-recording. Never wait on sound!

Clear, fast, easy to navigate controls and interface; visible in all light conditions, configurable metering and display.

The 633 integrates a high-accuracy time code generator supporting all common rates and modes. In addition to time code, the 633 supports extensive file metadata. Metadata is entered from either the front panel or from an attached USB keyboard.

Designed to withstand the extremes of field production, the 633's small, lightweight, compact chassis is made from molded, metalized carbon fiber. It is built on Sound Devices strong heritage of high performance audio mixers, audio recorders, and video recorders.

Sound Devices 633 Features:

• AES input, two-channel AES3 or AES42, four channelsof AES output
• Clear, fast, easy to navigate controls and interface;visible in all light conditions, configurable metering and display
• Input delay selectable on all six inputs plus outputbus delay on all six buses
• User-configurable headphone presets plus a headphone favorite mode for quick source selection

Sound Devices 633 Specifications:

• Frequency Response: 10 Hz to 40 kHz ± 0.5 dB, -3 dB @65 kHz (192 kHz sampling rate reference 1 kHz)
• THD + Noise: 0.09% max (@ 1 kHz, 22 Hz–22 kHz bw,fader at 0, 0 dBu output)
• Equivalent Input Noise: -126 dBu (-128 dBV) maximum.(22 Hz - 22 kHz bandwidth, flat filter, trim control fully up)
• Inputs:
  • XLR Mic: active-balanced for use with =600 ohm mics, 4k ohm actual; 12V or 48V phantom power, 10 mA max
  • XLR AES: AES3 or AES42 (10 V power), SRC
  • XLR Line: active-balanced for use with =2k ohm outputs, 10k ohm actual
  • TA3 Line: active-balanced for use with =2k ohm outputs, 10k ohm actual
  • RTN (3.5 mm): unbalanced stereo for use with =2k ohm outputs, 30k ohm actual
• Maximum Input Level:
  • XLR Mic: 0 dBu (0.78 Vrms)
  • XLR Line: +40 dBu (80 Vrms)
  • RTN (3.5 mm): +24 dBu (12.4 Vrms)
• Maximum Gain:
  • Mic-In-to-Line-Out: 91 dB
  • Mic-In-to-Aux-Out, -10 Out: 77 dB
  • Line-In-to-Line-Out: 39 dB
• High-Pass Filters:
  • Sweepable 80 Hz to 240 Hz, 12 dB/oct at 80 Hz, 6 dB/octave at 240Hz
• Output Type:
  • Line (XLR): active-balanced for use with =600 ohm inputs, 100 ohms
  • -10 (XLR): active-balanced for use with =10k ohm inputs, 3.2k ohm
  • Mic (XLR): active-balanced for use with =600 ohm inputs, 150 ohms
  • TA3 Mic/Line: active-balanced, pin-2 and 3 driven, for use with =3k ohm inputs, 1k ohm
  • Aux 3/4 Outs (3.5 mm): unbalanced, stereo, use with =6k ohm input, 100 ohm actual
  • Headphones (1/4”): unbalanced, stereo, use with 8-2k ohm headphones, 100 ohms
• Line Output Clipping Level (1% THD): 20 dBu minimum with 10k load
• Maximum Output Level:
  • Line: +20 dBu (7.8 Vrms)
  • -10: +6 dBu (1.5 Vrms)
  • Mic: -20 dBu (0.078 Vrms)
  • Aux 3/4: +6 dBu (1.5 Vrms)
• Recording Tracks:
  • 10 tracks (6 inputs, 4 output buses L/R, Aux1/2), WAV (broadcast Wave file format) monophonic and polyphonic, MP3 with time code metadata
• A/D:
  • 24-bit, 114 dB, A-weighted dynamic range typical; sampling rates of 44.1 kHz, 47.952 kHz, 48 kHz, 48.048 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz
• Digital Outputs:
  • AES3 transformer-balanced, in pairs; 1-2 on XLR-L, 3-4 on XLR-R, 110 ohm, 2 V p-p, AES and S/PDIF compatible
• Recording Storage Type: SD, SDXC, SDHC CardCompact Flash (CF) FAT32 formatted for CF and SD 32 GB, will format memory cards in-unit
• Sample/Timecode Accuracy: ± 0.2 ppm (0.5 frames per 24 hours)
• Timecode:
  • Modes Supported: off, Rec Run, Free Run, 24h Run, External
  • Frame Rates: 23.976, 24, 25, 29.97DF, 29.97ND, 30DF, 30ND
  • Accuracy: Ambient generator, 0.5 frame in 24 hr
  • Time Code Input: 20k ohm impedance, 0.3 V - 3.0 V p-p (–17 dBu - +3 dBu)
  • Time Code Output: 1k ohm impedance, 3.0V p-p (+12 dBu)
• Powering:
  • External: 10-18 V on locking 4-pin Hirose connector, pin-4 = (+), pin-1 = (-).
  • Removable x 2: 7.2 V (nominal) Sony L-type Liion, operational from 6.5–8.5 V,
  • Internal: accepts 6 AA-sized (LR6) batteries, 1.2-1.6 V nominal (NiMH rechargeable compatible)
• Environmental:
  • Operating: -20°C to 60°C, 0 to 90% relative humidity; (non-condensing)
  • Storage: -40°C to 85°C
• Dimensions: 2.2" x 9.4" x 5.6"
• Weight: 1.1 kg; 2 lbs. 9 oz. (unpackaged, without batteries)