633 Specifications

Click on each group to expand. Specifications are subject to change without prior notice.

Analog Inputs
  • 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)
  • Input Types
    • XLR Mic: active-balanced for use with ≤600 ohm mics, 4k ohm actual; 12V or 48V phantom power, 10 mA max
    • 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 240 Hz
  • Microphone Powering (each analog Input selectable)
    • 12 V Phantom: through 680 ohm resistors, 10 mA per mic available
    • 48 V Phantom: through 6 .8k resistors, 10 mA per mic available
  • Analog Input Limiters (Inputs 1-3)
    • Affects the output of the mic preamps only (‘Trim’ stage) · +16 dBu threshold (fixed)
    • 20:1 limiting ratio
    • 1 mS attack time
    • 500 mS release time

Digital Inputs
  • Input Types
    • XLR AES: AES3 or AES42 (10 V power), SRC
  • Digital Input Limiters (Inputs 1-6)
    • Post-fader
    • +6 dBu to +18 dBu threshold (adjustable) · 20:1 limiting ratio
    • 1 mS attack time
    • 500 mS release time
  • AES42
    • AES42 Mode 1, provides +10 V Digital Phantom Power

Analog Outputs
  • Output Type
    • XLR Line: Active Balanced for use with ≥600 ohm inputs
    • XLR -10: Active Balanced for use with ≥10k ohm inputs
    • XLR Mic: Active Balanced for use with ≥600 ohm inputs
    • TA3 Active Balanced Mic/Line: pin-2 and 3 driven, for use with ≥3k ohm inputs · X3,X4 (3 .5 mm): Unbalanced, stereo, for use with ≥6k ohm inputs
    • Headphones (1/4”): Unbalanced, stereo, for use with 8-2k ohm headphones
  • Output Impedance (ohms actual)
    • XLR and TA3 balanced outputs: 100 ohms at Line setting, 3 .2k ohms at -10 setting, 150 ohms at Mic setting
    • TA3 Balanced Outs: 1k ohms at Mic and Line settings · X3,X4 (3 .5 mm): 100 ohms
    • Headphones (1/4”): 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)
  • Output Limiters
    • Affects the outputs of the mixer
    • Threshold selectable from +4 dBu to +18 dBu, 1 dB steps · 20:1 limiting ratio
    • 1 mS attack time
    • 500 mS release time
  • Maximum Gain
    • Typical (Trim, Fader, Master, Phones, RTN fully up)
  • Maximum Gain – Mic Level
    • Master Outs (XLR) @ LINE 91 dB
    • Master Outs (XLR) @ -10 77 dB
    • Master Outs (XLR) @ MIC 51 dB
    • X3, X4 Outs (3 .5 mm) 77 dB
    • Headphones (1/4”) 107 dB
  • Maximum Gain – Line Level
    • Master Outs (XLR) @ LINE 51 dB
    • Master Outs (XLR) @ -10 37 dB
    • Master Outs (XLR) @ MIC 11 dB
    • X3, X4 Outs (3 .5 mm) 37 dB
    • Headphones (1/4”) 67 dB
  • Maximum Gain – Return
    • Headphones (1/4”) 5dB

Digital Outputs
  • AES3 Output
    • Transformer-balanced AES Out A,B on XLR
    • 110 ohm, 2 V p-p, AES and S/PDIF compatible with RCA adaptor

Recording
  • Sampling Frequency
    • 44.1 kHz
    • 47.952 kHz
    • 48 kHz
    • 48.048 kHz
    • 88.2 kHz
    • 96 kHz
    • 192 kHz
  • A/D
    • 24 bit
  • A/D Dynamic Range
    • 114 dB, A-weighted, typical
  • Recording Storage Type
    • SD, SDXC, SDHC Card
    • FAT32 or exFAT formatted, will format media on-board
    • CompactFlash (CF)
    • FAT32 formatted for CF and SD 32 GB, will format memory cards in-unit
  • File Type
    • Record: WAV (Broadcast Wave File format), polyphonic or MP3
    • Playback: WAV (Broadcast Wave File format), polyphonic or MP3

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
  • Accuracy: Ambient generator, 0.2 ppm (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 (+3 dBu)
  • Sample/Timecode Accuracy
    • ± 0.2 ppm (0.5 frames per 24 hours)

Power
  • External: 10-18 V on locking 4-pin Hirose connector, pin-4 = (+), pin-1 = (-).
  • Removable x 2: 7.2 V (nominal) Sony L-type Li-ion, 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 and Weight
  • Dimensions: 6 cm x 24 cm x 14 cm (H x W x D); 2.2” x 9.4” x 5.6”
  • Weight: 1.1 kg; 2 lbs. 9 oz. (unpackaged, without batteries)