Sound Devices 302 - Manual (Page 24)

302 User Guide and Technical Information
24
v. 3.6 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.
Specifications
Measurement settings (unless otherwise specified): Gain controls for the channel being measured at
mid point, all other channels gains fully down; pan switches centered; high-pass off; inputs in ‘mic’
position; outputs in ‘line’ position. Mic input driven with 150 ohm source. Outputs measured with
100k ohm load. Temperature at 25º C.
Maximum Gain,
typical (trim, fader, master, phones RTN fully up):
Inputs
Dynamic Range 115 dB minimum (trim fully down)
Frequency Response 20 Hz to 30 kHz, +0.2, –0.5 dB,
–1 dB @ 5 Hz and 50 kHz typical
Equivalent Input Noise –126 dBu (–128 dBV) maximum (22 Hz to 22 kHz bandwidth, flat filter, trim control fully up)
THD + Noise 0.007% typical (1 kHz, +4 dBu at Line out)
0.009 max (50 Hz to 20 kHz, +18 dBu at Line out, fader fully up)
Input Clipping Level 0 dBu minimum (trim control fully down)
Gain Matching ±0.1 dB (Mic In to Line Out)
Common Mode Rejection
Ratio
120 dB minimum at 80 Hz, mic input
100 dB minimum at 10 kHz, mic input
High-Pass Filters Switchable 80 Hz or 160 Hz, 12 dB/oct
Mic Powering
(each XLR selectable)
Dynamic (no power applied),
12 V Phantom - through 680 ohm resistors, 10 mA per mic available,
48 V Phantom - through 6.8k resistors, 10 mA per mic available,
12 V T-Power - through 180 ohm resistors, 10 mA per mic available
Input Limiters +18 dBu threshold, 20:1 limiting ratio, 1 mS attack time, 200 mS release time.
Impedance:
(Ohms Actual)
Type: For use with: Max Input Level:
XLR, mic setting 2.5k transformer-balanced < 600 ohm mics 0 dBu (0.78 Vrms)
XLR, line setting 16k transformer-balanced < 2k ohm outputs +40 dBu (80 Vrms)
Mix In 4.2k unbalanced, stereo 302, 442 Mix Out (1.8k) +6 dBu (1.5 Vrms)
Return & ch 4/5 10k unbalanced < 2k ohm outputs +30 dBu
Outputs
Line Output Clipping
Level (1% THD)
20 dBu minimum
18 dBu minimum with 600 ohm load
Output Noise –100 dBu (–102 dBV) maximum (22 Hz to 22 kHz bandwidth, flat filter, master gain fully up,
faders fully down)
Output Limiters affects the Line Output and Tape Out,
threshold selectable from +4 dBu to +20 dBu,
1 dB steps, 20:1 limiting ratio, 1 mS attack time, 200 mS release time
Impedance:
(Ohms Actual)
Type: For use with: Max Output Level:
XLR, factory Line setting 150 active-balanced >= 600 ohm mics +20 dBu (7.8 Vrms)
XLR, mic (lowest) setting 150 active-balanced <2k ohm outputs –36 dBu
Tape Out / Mix Out TA3 1.8k unbalanced, stereo >6k ohm inputs +6 dBu (1.5 Vrms)
Headphones - 3 .5 mm 200 unbalanced, stereo 8–2k ohm phones +20 dBu (7.8 Vrms)