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The 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. An amazing piece of kit. 

What's included
  • Sound Devices 633 mixer
Spec name
Spec description

Dimensions: 6 cm x 24 cm x 14 cm (H x W x D); 2.2” x 9.4” x 5.6”

Affects the outputs of the mixer

Sweepable 80 Hz to 240 Hz, 12 dB/oct at 80 Hz, 6 dB/octave at 240 Hz

External: 10-18 V on locking 4-pin Hirose connector, pin-4 = (+), pin-1 = (-).

Modes Supported: off, Rec Run, Free Run, 24h Run, External

Analog Input Limiters (Inputs 1-3)

XLR Line: Active Balanced for use with ≥600 ohm inputs

± 0.2 ppm (0.5 frames per 24 hours)



10 Hz to 40 kHz ± 0.5 dB, -3 dB @ 65 kHz (192 kHz sampling rate reference 1 kHz)

XLR Mic: active-balanced for use with ≤600 ohm mics, 4k ohm actual; 12V or 48V phantom power, 10 mA max

Record: WAV (Broadcast Wave File format), polyphonic or MP3




Sound Devices 633

Portable Field Mixer/Recorder with Ambient Timecode
Guide price per day


excluding VAT

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