Sound Device Field Mixers 302

Description

Developed specifically for audio-for-picture applications, the 302 mixer is the perfect tool for production companies and camera operators wanting to take control of their audio. The 302 is stunning for its size, flexibility, control and performance; it is the most widely-used compact battery-powered professional audio mixer in its class.

With important features to accommodate nearly any over-the-shoulder production, the 302 interfaces with wireless transmitters and receivers, camera audio inputs of all kinds, and external audio recorders. Its microphone inputs share the same superb circuitry as the 552 Portable Production Mixer and MixPre-D Compact Field Mixer.

Like Sound Devices larger 552 Field Mixer , the 302 is a complete Field Mixer, but designed in a super-compact package. Controls are accessible on its three main surfaces, its high-efficiency power circuitry runs the mixer from either three internal AA batteries or external 5-18 VDC.

Front Panel

• Coarse channel gain (trim) control
• Channel fader
  
• Two-position high-pass filter switch
• Channel limiter activity LED
• Channel peak activity LED
• Pan switch, left, center, right
• Limiter activation switch, dual-mono or stereo link
• 40-segment tri-color LED output meter

• Headphone volume control
• Power LED shows green on power; flashes when power is low
• Power switch selects internal AA-batteries or external DC
• Meter illumination brightness switch
• Meter ballistics toggle switch
• Battery check switch
• Slate mic / tone oscillator switch

Input Panel

• Transformer-balanced mic/line XLR input
• Mic / line input sensitivity switch
• Phantom, dynamic, or T powering switch
• 48 V or 12 V global phantom voltage
• 3.5 mm TRS headphone output connector

Output Panel

• Active-balanced line level ouput (user adjustable to mic or attenuated levels)
• Tape Out / Mix Out connection on TA3 connector - duplicate of program audio
• Monitor return input on 3.5 mm TRS unbalanced input (also functions as input 4/5 connector)
• Monitor return input level (also functions as input 4/5 level control)
• Mix In connection input to link a MixPre, 442, or another 302
• Input 4/5 enable LED indicates that Monitor return functions as inputs 4/5
• Ouput Attenuation LED indicates that XLR output level attenuated from Line level
• Battery tube - holds 3 AA batteries
• External DC input for 5 - 17 VDC

Specification

Frequency Response:

• 20 Hz - 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 - 22 kHz bandwidth, flat filter, trim control fully up)

Input Clipping Level:

• 0 dBu minimum (trim control fully down)

Line Output Clipping Level (1% THD):

• 20 dBu minimum, 18 dBu minimum with 600 ohm load

Dynamic Range:

• 115 dB minimum (trim fully down)

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)

Output Noise

• -100 dBu (-102 dBV) maximum (22 Hz - 22 kHz bandwidth, flat filter, master gain fully up, faders fully down)

L/R Gain Matching:

• +/- 0.1 dB (Mic In to Line Out)

Metering:

• 40-segment, sunlight-viewable Selectable peak, VU, or peak (with or without peak hold) + VU ballistics

High-Pass Filters:

• Switchable 80 Hz or 160 Hz, 12 dB/oct, silent activation

Mic Powering (each mic selectable):

• None, 12 V phantom, 48 V phantom, 12 V T-power, selected per mic input

Input Limiters:

• +18 dBu threshold, 20:1 limiting ratio, 1 mS attack time, 200 mS release time.

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

Power supply:

• Internal ±16 V (bi-polar) regulated audio rails, 2.4 - 6 V range internal batteries, isolated (floating) external DC input jack, 5-18 V locking 4-pin Hirose connector, pin-4 = (+), pin-1 = (-)

Temperature:

• Operating: -20°C to 60°C, 0 to 95% relative humidity; (non-condensing), storage: -40°C to 85°C

Weight:

• 0.85 kg, (1.8 lbs) unpackaged with three alkaline AA batteries

Dimensions:

• 47 mm x 214 mm x 114 mm (H x W x D), 1.8" x 8.4" x 4.5"