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Description

Product Description

Your Next Gen Field Mixer/Recorder

Do you mix production sound? Sweetwater is about to make your gig a lot easier. The Sound Devices 688 is a compact, lightweight 12-input mixer with an integrated 16-track digital recorder. You’ve got a tough job, and Sound Devices gets it. With the 688 and its optional integrated powering and wireless system, cabling requirements are significantly decreased, de-cluttering your gear bag, increasing reliability, and vastly improving ease of use. And you can also say goodbye to concerns about battery life, power loss, and file corruption. The 688 has the I/O and pro features you require. Give your Sales Engineer a call to discuss what the Sound Devices 688 can do for your business.

The flexibility you need for big productions

Sound Devices equipped the 688 with six high-bandwidth mic/line inputs on XLR connectors, each complete with phantom power, highpass filter, analog input limiter, and panpot. Six additional line inputs on TA3 connectors give you the flexibility to handle more complex productions. All the inputs are pre- or post-fader assignable to the 688’s eight output buses, left/right main outs, and Aux busses 1-6. The 688 can send its main left/right mix to three cameras concurrently via transformer-balanced XLR and Hirose connectors.

12-channel MixAssist auto-mixing

The 688 boasts a robust DSP engine that gives you 12-channel auto-mixing capability using Sound Devices’s sophisticated algorithm, which has garnered broad acclaim throughout the Industry. MixAssist automatically attenuates the level of tacet inputs and helps maintain consistent background sound levels, regardless of how many open mics you have. By intelligently attenuating redundant mics, the 688 reduces the nasty comb filtering and phasing artifacts that occur when multiple mics capture the same sound source.

Onboard 16-track digital recorder

The Sound Devices 688 gives you 16-track, polyphonic or monophonic broadcast WAV file recording to SD and CompactFlash cards. All popular sampling rates are supported, including 192kHz on up to six tracks. You can set the memory cards independently, recording combinations of WAV and MP3 files or identical signals for real-time backup.

No power-loss worries with PowerSafe

The 688 incorporates Sound Devices’s proprietary PowerSafe circuitry with smart sensing of available power sources, front panel warning indication of power loss, and an integrated 10-second power reserve that – in the event of an inadvertent power loss – lets the 688 safely stop recording, properly end all file operations, and automatically shut down. With the 633’s QuickBoot power-on, you’ll never miss a word of dialog – it powers up in under two seconds, so you’ll be up and recording fast when the director calls action.

Pro Timecode and Metadata

The 688 features Sound Devices’s renowned Ambient timecode generator and reader that supports all common rates and modes. You even get a super-helpful timecode compare utility that displays the difference between internal and external timecode. The 688 also generates sound reports and supports extensive metadata via the front panel or an attached (optional) USB keyboard.

Sound Devices 688 Production Sound Mixer/Recorder Features:

  1. MixAssist 12-input auto-mixer
  2. 12 analog inputs: six mic/line preamps plus six line inputs
  3. All inputs have front-panel faders and PFLs
  4. 16-track recording to SD and CompactFlash cards; timecode-stamped WAV and MP3 files
  5. Eight output buses: L/R mix plus Aux 1-6
  6. Transformer-balanced XLR and Hirose outs for freedom from ground loops
  7. Two AES42/AES3 inputs, eight AES3 outputs
  8. Direct menu control of SuperSlot- compatible wireless (with SL-6)
  9. PowerSafe protects files from power loss
  10. 2-second power on-to-recording
  11. Flexible digital mixing and routing
  12. Supports all sample rates up to 192kHz
  13. Adjustable input and output delay
  14. Three camera returns and dedicated COM return
  15. Internal and external slate mic inputs
  16. Ambient TC generator and reader and internal TC backup battery
  17. Easy to navigate interface
  18. 1000-nit LCD visible in all light conditions, configurable metering
  19. Accepts optional USB keyboard for metadata entry
  20. User-configurable headphone presets
  21. Light-weight, durable carbon-fiber chassis
  22. Powered by AA-battery (x5), external DC or NP1 via SL-6
  23. Optional Accessories:
    • SL-6 power distribution and 6-ch SuperSlot wireless receiver system
    • CL-6 input controller with LED metering and transport controls
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More Info

Additional Information

Frequency Response

10 Hz to 40 kHz ± 0.5 dB, -3dB @ 65 kHz (192 kHz sample rate, re 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 - Other

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 A,B,C (3.5 mm/10-pin): unbalanced stereo for use with ≤2k ohm outputs, 6.5k ohm actual
Slate Mic (TA3): 6.5k ohms

Input Clipping Level

0 dBu minimum

Maximum Input Level

XLR Mic: 0 dBu (0.78 Vrms)
XLR Line: +40 dBu (80 Vrms)
RTN A, B, C (3.5 mm/10-pin): +24 dBu (12.4 Vrms)

High-Pass Filters

Adjustable 80 Hz to 240 Hz, 18 dB/oct (up to 96 kHz) Fixed 50 Hz, 6 dB/oct (192 kHz)

Input Limiters

Pre-fade (Inputs 1-6): +16 dBu threshold fixed, soft knee/ hard knee, 20:1 ratio, 1 mS attack, 500 mS release
Post-fade (Inputs 1-12): Adjustable threshold +4 dBu to +18 dBu, 20:1 ratio, 1 mS attack, 500 mS release

Input Delay

Adjustable 0-30 mS for each input in 0.1 mS steps

Maximum Gain

Mic-In to L/R/X1/X2/X3/X4 (Line): 91 dB
Mic-In to X5/X6 (Line): 88 dB
Mic-In to L/R/X1/X2/X3/X4 (-10): 77 dB
Mic-In to X5/X6 (-10): 74 dB
Mic-In to L/R/X1/X2/X3/X4 (Mic): 51 dB
Mic-In to X5/X6 (Mic): 48 dB

Headphone Max. Gain

63 dB (Line 1-6 input)
44 dB (Line 7-12 input)
103 dB (Mic input)

Outputs

Line (XLR and 10-pin): transformer-balanced, 120 ohms
-10 (XLR and 10-pin): transformer-balanced, 3.2k ohm
Mic (XLR and 10-pin): transformer-balanced, 150 ohms
TA3 (X1-X4) Mic/Line/-10: active-balanced, 240/3.2k/120 ohms
TA3 (X5/X6) -10: unbalanced, 100 ohms
Tape Out (3.5 mm): unbalanced, stereo, 1.8k ohms
Headphones (3.5 mm and 1/4”): unbalanced, stereo, 60 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 V rms)
Mic: -20 dBu (0.078 Vrms)
Tape Out: +6 dBu (1.5 Vrms)

Output Limiters

L/R and X1/X2, adjustable threshold +4 dBu to +18 dBu, soft knee/hard knee, 20:1 ratio, 1 mS attack, 500 mS release.

Output Delay

Adjustable 0-417 mS (0-12.5 frames @ 30fps) for each output in 1 mS steps

Recording Tracks

16 tracks (12 inputs, 4 output buses L/R, Aux 1/2)
Broadcast WAV monophonic and polyphonic file format, MP3 with time code metadata

A/D

24-bit, 114 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), 5-6, (Hirose 10-pin RTN A), 7-8, (Hirose 10-pin RTN C)
110 ohm, 2 V p-p, AES and S/PDIF compatible

Recording Storage Type

SD, SDHC, SDXC Card, CompactFlash (CF)
FAT32 formatted (32GB), on-board memory card formatting

Timecode and Sync

Modes Supported: off, Rec Run, Free Run, 24h Run, External
Frame Rates: 23.976, 24, 25, 29.97DF, 29.97ND, 30DF, 30ND
Sample/Timecode Accuracy: Ambient generator, ± 0.2 ppm (0.5 frames per 24 hours)
Timecode Input: 20k ohm impedance, 0.3 V – 3.0 V p-p (–17 dBu – +3 dBu)
Timecode Output: 1k ohm impedance, 3.0V p-p (+12 dBu)
Wordclock In/Out: square wave; 10k/75 ohm, 1-5V p-p input; 75 ohm, 5V p-p output, at SR
Wordclock Termination: 75 ohm, Off

Power

External: 10-18 V on locking 4-pin Hirose connector, pin-4 = (+), pin-1 = (-).
Internal: accepts 5 AA-sized (LR6) batteries, nominal (NiMH rechargeable compatible)
PowerSafe: 10 second power reserve

Idle Current Draw

680 mA @ 12V (8.16W) – inputs 1-6 powered on, CF and SD media inserted

Environmental

Operating: -20°C to 60°C, 0 to 90% relative humidity (non-condensing)
Storage: -40°C to 85°C

Dimensions (H x W x D)

5.3 cm x 32 cm x 19.8 cm;
(2.1 in. x 12.6 in. x 7.8 in)

Weight

4 lbs. 14 oz. (unpackaged, without batteries)
2.21 kg (unpackaged, without batteries)

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