Sound Devices 442, User Manual And Technical Information

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442/442N User Guide and Technical Information
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v. 5.07 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.
Analog Outputs
Output Type XLR Line: Transformer-balanced for use with >600 ohm inputs
XLR -10: Transformer-balanced for use with >10k ohm inputs
XLR Mic: Transformer-balanced for use with >600 ohm inputs
Multipin Line: Transformer-balanced for use with >600 ohm inputs
Multipin -10: Transformer-balanced for use with >10k ohm inputs
Multipin Mic: Transformer-balanced for use with >600 ohm inputs
TA3 Balanced Mic and Line: Impedance-balanced, pin-2 driven, for use with >3k ohm inputs
TA3 Direct Outs Mic and Line: Impedance-balanced, pin-2 driven, for use with >3k ohm inputs
Tape Outs (3.5 mm and TA3-type): Unbalanced, stereo, for use with >6k ohm inputs
Mono Mic Out: Unbalanced, mono, for use with >600 ohm inputs
Headphones (3.5 mm and 1/4"): Unbalanced, stereo, for use with 8-2k ohm headphones
Output Impedance
(ohms actual) XLR: 85 ohms at Line setting, 3.2k ohms at -10 setting, 150 ohms at Mic setting
Multipin: 85 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
TA3 Direct Outs: 1k ohms at Mic and Line settings
Tape Outs (3.5 mm and TA3-type): 1.8k ohms
Mono Mic Out: 150 ohms
Headphones (3.5 mm and 1/4"): 200 ohms
Line Output Clipping
Level (1% THD) 20 dBu minimum
18 dBu minimum w/600 ohm load
Maximum Output Level Line (XLR, Multipin, TA3 Balanced and Direct Outs): +20 dBu (7.8 Vrms)
-10 (XLR, Multipin): +6 dBu (1.5 V rms)
Mic (XLR, Multipin, TA3 Balanced and Direct Outs): -20 dBu (0.078 Vrms)
Tape Outs (3.5 mm and TA3-type): +6 dBu (1.5 Vrms)
Mono Mic Out: +6 dBu (1.5 Vrms)
Headphones (3.5 mm and 1/4"): +20 dBu (7.8 Vrms)
Output Noise -100 dBu (–102 dBV) maximum (22 Hz - 22 kHz bandwidth, flat filter, master gain fully up, faders
fully down
Output Limiters Affects the outputs of the mixer.
Threshold selectable from +4 dBu to +20 dBu,
1 dB steps, 20:1 limiting ratio, 1 mS attack time, 200 mS release time.
Maximum Output
Typical (Trim, Fader,
Master, Phones, RTN A,
RTN B fully up)
XLR Input MIC Level XLR Input LINE Level RTN A, B
XLR, Multi-pin Outs @ LINE 81 dB 41 dB -
XLR, Multi-pin Outs @ –10 67 dB 27 dB -
XLR, Multi-pin Outs @ MIC 41 dB 1 dB -
Balanced TA3-type Outs @ LINE 81 dB 41 dB -
Balanced TA3-type Outs @ MIC 41 dB 1 dB -
Tape Out, TA3-type and 1/8” 67 dB 27 dB -
Mono Mic Out 41 dB 1 dB -
Headphones, ¼” and 1/8” 101 dB 81 dB 30 dB