User manual
Sound Devices 688 12-Input Field Production

User Manual for Sound Devices 688 12-Input Field Production Mixer and 16-Track Recorder

• Product category: Field Mixers Sound Devices
• Brand: Sound Devices
• Description and content of package
• Technical information and basic settings
• Frequently asked questions – FAQ
• Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
• Authorized service for Sound Devices Field Mixers

Product description

I/O
• The 688 has six high-bandwidth mic/line inputs on XLR connectors, each complete with phantom power, high-pass filter, analog input limiter and variable pan. Six additional line-level inputs on TA3 connectors offer flexibility for more complex productions.

Routing Flexibility
• All inputs are assignable, pre- or post-fade to its eight output buses, left/right plus Aux 1-6. The 688 can send its main left/right mix to three cameras simultaneously via transformer-balanced XLR and Hirose outputs

Mix Assist
• The 688's digital processing engine delivers 12-channel auto-mixing capability using a proprietary algorithm. MixAssist automatically attenuates the level of inputs that are not active and helps maintain consistent background sound levels regardless of the number of open microphones. Comb filtering and phasing artifacts are also reduced when multiple mics pick up the same sound source by intelligently attenuating redundant mics

Recording
• The 688 offers 16-track, polyphonic or monophonic broadcast WAV file recording to SD and CompactFlash cards. All common sampling rates are supported, including 192 kHz on up to six tracks. The memory cards can be set independently, recording either identical material for real-time backup, or combinations of WAV and MP3 files

PowerSafe
• The 688 incorporates exclusive PowerSafe circuitry with smart sensing of available power sources, front panel warning indication of power loss, and an integrated 10-second power reserve that will, in the event of an inadvertent power loss, allow the 688 to safely stop recording, properly end all file operations, and then automatically shut down

QuickBoot
• Power on and start recording in less than two seconds. You never have to wait on sound

Timecode and Metadata
• The 688 features an Ambient timecode generator and reader supporting all common rates and modes. A time code compare utility shows the difference between internal and external timecode. The 688 also generates sound reports and supports extensive metadata, via the front panel or attached USB keyboard

• • 16-track recording to SD & CompactFlash cards; Timecode-stamped WAV & MP3 files
  • Eight output buses: L/R mix plus Aux 1-6; transformer-balanced XLR & Hirose outs for freedom from ground loops Two AES42/AES3 inputs, eight AES3 outputs
  • Direct menu control of SuperSlot-compatible wireless (with optional SL-6)
  • Supports all sample rates up to 192 kHz
  • Adjustable input & output delay
  • Three camera returns & dedicated COM return
  • Internal & external slate mic inputs
  • Ambient TC generator and reader and internal TC backup battery
  • Easy to navigate interface, 1000-nit LCD visible in all light conditions, configurable metering
  • USB Keyboard for metadata entry
  • User-configurable headphone presets
  • Lightweight, durable carbon-fiber chassis
  • Powered by AA-battery, external DC or NP1 via optional SL-6

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