SOUND DEVICES 633

The Sound Devices 633 is a professional field mixer and recorder widely used in film and TV production. Here are its key technical details:

Mixer Section:

• Inputs: 6 total (3 x XLR mic/line, 3 x TA3 line-level or mic-level)

• Preamps: Transformerless, low-noise microphone preamps

• Phantom Power: Selectable (12V or 48V)

• High-Pass Filter: Adjustable per input (40 Hz to 240 Hz)

Recorder Section:

• Recording Media: SD card, CompactFlash, and internal 4GB memory

• Recording Tracks: Up to 10 (6 inputs + L/R mix + 2 aux)

• File Formats: WAV (Broadcast Wave Format), mono or poly files

• Bit Depth / Sample Rate: 16 or 24-bit, up to 96 kHz

Outputs:

• Main Outputs: XLR (balanced line)

• Aux Outputs: TA3

• Headphone Output: 1/4″ and 1/8″

Timecode:

• Timecode I/O: BNC connectors

• Modes: Freerun, Record Run, External, and Auto Record

• Clock Accuracy: <0.2 ppm

Power:

• Power Sources: L-mount batteries, AA batteries, or external DC (10–18 V)

• Power Draw: ~12 W depending on usage

Dimensions and Weight:

• Size: 2.1” x 7.8” x 5.4” (54 x 198 x 137 mm)

• Weight: 1.6 lbs (0.73 kg) without batteries