Inputs

At the heart of the MixPre-D are two studio-grade mic/line inputs with available limiters, high-pass filters and phantom power. Inputs can be linked in standard or MS mode for stereo recording applications. All of these input functions are configured with front panel controls.

Analog and Digital Outputs

To accommodate the increasing variety of cameras and devices used in production, the MixPre-D has incredible output flexibility. Outputs include balanced mic/line XLR, digital AES (XLR), dedicated consumer mic-level on a locking TA3 connector (designed specifically for DSLR-type inputs) and an aux-level output on 3.5 mm connection.

USB Audio Interface

The "D" in MixPre-D indicates the infusion of extensive digital technology. In addition to 24-bit AES digital outputs, USB audio streaming is provided for Mac OS, Windows or Linux computers. When the MixPre-D is connected to a computer with a USB cable, the operating system recognizes it as a USB Audio Class compliant device. No driver installation is required.

A Heritage of Portability

The smaller sibling to the 302 Compact Production Field Mixer and the 552 Portable Production Mixer, the MixPre-D is perfect for professional applications where the smallest and lightest mixer is required, and the sound performance, functions, and features of a larger mixer is essential.

MixPre-D Key Features List

• Transformer-balanced mic/line selectable inputs
• 48-volt or 12-volt phantom power
• "Unclippable" input peak limiters, dual-mono or stereo linked operation
• Input panning to Left, Center, or Right outputs
• Mid-Side Stereo (MS) matrix with width control and front-panel channel flip
• Return can be used as ch3/ch4 aux-level inputs, selectable pan and level control
• High-pass filters, 80 Hz or 160 Hz
• Slate microphone and tone oscillator
• Mic/Line/AES digital selectable outputs, digital SR of 44.1 , 48 , or 96 kHz
• 24-bit, class-compliant USB streaming output for interconnection with Mac OS, Windows, Linux, and select iOS devices, computer audio in MixPre-D headphones
• Dedicated mic-level output on locking TA3 connector for unbalanced camera inputs
• Headphone monitoring of program audio or external return audio
• Sunlight-viewable, 16-segment GaN LED output meter with adjustable brightness
• Internal battery-power from two AA
• External power input, 10-18 VDC
• High-strength, extruded aluminum chassis with metal connectors

Frequency Response

• 20 Hz - 30 kHz, +0.2, -0.5 dB (relative to 1 kHz level with 150 ohm source, gain controls set at 50%)

Equivalent Input Noise

• -126 dBu (-128 dBV) maximum mic in to line out, (150 ohm source, flat weighting, 22 Hz - 22 kHz bandwidth, gain control set at 50% or higher, phantom power off)

Input Clipping

• -10 dBu minimum (mic level), +28 dBu minimum (line level)

Output Clipping Level

• Line: +22 dBu minimum with 100k ohm load
• Mic: -18 dBu minimum with 100k ohm load

Gain

• Mic to Line, max: 66 dB
• Line to Line, max: 26 dB
• Line to Mic, max: -14 dB
• Mic to Mic, max: 26 dB
• Mic (TA3) relative to Line out: -36 dB

Dynamic Range

• 110 dB minimum, mic input to line output

THD + Noise

• 0.05% maximum (from 50 Hz to 22 kHz @ +4 dBu output level)

Common Mode Rejection Ratio

• 100 dB minimum at 80 Hz, 60 dB minimum at 10 kHz

Inputs

• Transformer-balanced, 2k mic input impedance, 16k line input impedance

Outputs

• XLR-Line/Mic: active-balanced, 100 ohm output impedance
• XLR-AES3: balanced, 110 ohm, two-channel, on right XLR connector
• TA3: unbalanced mic-level output, pin-2 left, pin-3 right, pin-1 ground, 200 ohm output impedance
• Tape (3.5 mm) Unbalanced, tip-left, ring-right, sleeve-ground, 2.1k ohm output impedance

A/D Converter for USB

• 103 dB typical, A-weighted; sample rate selectable 44.1k, 48k, or 96k

Output Noise

• -100 dBu (-102 dBV) maximum (22 Hz - 22 kHz bandwidth, flat filter)

High Pass Filters

• 80 Hz or 160 Hz (switch selectable), 6 dB per octave

Phantom Power

• 12-volt through 680 ohm resistors or 48-volt through 6.8k resistors (switch selectable)

Limiter

• Threshold adjustable, +8 dBu to +18 dBu, 20:1 limiting ratio, 1 mS attack time, 200 mS release time.

Metering

• 16 segment x 2 GaN (Gallium Nitride) meters, peak + VU responding, wicked bright

Power

• Internal: 2 AA alkaline batteries, 4 hours life typical, no phantom power
• External: 10-17 VDC via 4-pin Hirose, pin 4 = +, pin 1 = -, completely isolated floating supply

USB Connectivity

• USB class-compliant device, analog input to USB output, USB monitoring in headphones

Temperature

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

Weight

• 0.7 kg, 1.5 lbs with batteries

Dimensions

• 43 mm x 94 mm x 140 mm (h x w x d), (1.7" x 3.7" x 5.5")