For independent filmmakers, field recordists, and Ambisonic enthusiasts who need pristine audio capture of up to four microphones, the Sound Devices MixPre-6 II multitrack field recorder is an ideal tool. Record up to six tracks of external sources (four channels via XLR-1/4" combo jacks and two channels via a 3.5mm mini jack) plus a stereo mix at up to 32-bit / 192 kHz while monitoring your audio headphones.

The MixPre-6 II offers many upgrades over its predecessor. Chief among these features is the ability to record at 32-bit floating point. This makes it nearly impossible for you to clip (distort) audio on the way in. Whether you're recording hot or making use of the unit's astounding 142 dB dynamic range, you'll only be handicapped by the quality of your microphone.

Other improvements include the ability to auto-copy recorded tracks to USB thumb drives, making file transfers a breeze. Lovers of sync will revel in a handy new feature: a full-fledged, built-in timecode generator, accurate to better than 0.2 ppm (0.5 frames in 24 hours). Even when powered off, the MixPre-6 II maintains accurate timecode for up to four hours.

All of this is available in a six-channel package that can be powered from wall chargers, computers, AA batteries, or Sony L-series batteries. Whether you use the device in an advanced or basic capacity, the MixPre-6 II will suit any intimate, field-based production.

Kashmir Preamps
Like the original unit, the MixPre-6 II offers class-A Kashmir mic preamps. All inputs are fully RF-filtered to keep interference out.
Audio Interface Functionality
When connected to a Mac or Windows computer, the MixPre-6 II can serve as an 8-input / 4-output USB audio interface for your favorite audio recording software. The unit will record six tracks in isolation and provide a stereo mix of all six channels to boot.
USB Audio Input
Stream up to four tracks into the unit over USB, using the MixPre-6 II as a recorder from your host device. If you're a musician, you can utilize this feature to record a stereo mix from your host DAW as a backing track for further standalone recording.
A Cornucopia of Connections
For inputs, you'll find four XLR-1/4" combo jacks and a 3.5mm auxiliary input. Audio output connections are handled over 3.5mm jacks. Timecode I/O is made possible via 3.5mm connections, though you also have the option of HDMI for inputting timecode.
Adjust on the Fly
Adjust the limiters, change the bit-depth, shift panning, delay, and polarity in the stereo mix, and filter out extraneous bass rumble with low-cut filters. Whether you record to an SD card or to your computer over USB, the MixPre-6 II can be customized to your needs.
Built-In Timecode Generator & Bluetooth Control
Thanks to the device's timecode generator, you can even trigger recording from the camera. With built-in Bluetooth, you can control the unit over the Wingman app, available from Sound Devices. This app displays high-resolution meters, current timecode, transport buttons, and more.
Ambisonics Integration
Upon installation of the free Ambisonics plug-in (from the Sound Devices Plug-In Store), field recordists, game developers, and VR content creators will appreciate the support for simultaneous multiformat recording (AmbiX, FuMa, LR Stereo, and LR Binaural), real-time binaural/stereo monitoring, and A- to B-Format conversion.
Transport and Mounting Options
The MixPre-6 II is rugged, lightweight, and relatively compact, so you can throw it in a bag or mount it to a tripod or camera.
Key Features at a Glance
Kashmir microphone preamps with 48V phantom power
Internal timecode generator
Sample rates up to 192 kHz
Bit depths up to 32-bit float
Adjustable limiters
SD card recording and reading
Backup to USB drive
10 seconds of pre-roll at 48 kHz
USB control surface support
Customize with plugins
Add low cut, high pass, delay, polarity invert, and panning
Simultaneous recording, mixing, and USB audio streaming
Trigger record via timecode or HDMI timecode
Bluetooth for wireless control via Wingman app
Basic, Advanced, and custom modes
High-fidelity headphone amplifier

Portable Recorder
Number of Tracks WAV:
8 (6 Inputs + Stereo Mix)
Max Sample Rate/Resolution 192 kHz / 32-Bit
Microphone None
Built-In Speaker None
Display 1.6" / 40.64 mm Color LCD Touchscreen
Memory Card Support SD, SDHC, SDXC (Up to 512 GB)
Internal Storage None
Recording
Audio File Formats Recording:
WAV
Sample Rates WAV:
44.1 / 47.952 / 48 / 48.048 / 96 / 192 kHz
Bit Depth 16 / 24 / 32-Bit (A/D Conversion)
Signal Processing Delay, Limiter, Low-Cut Filter
Timecode Yes
Frame Rates Supported 23.976 / 24 / 25 / 29.97 / 29.97 DF / 30 / 30 DF
Clock Accuracy ±2 ppm / 0.5 Frame per 24 Hrs (Timecode)
Connectivity
Analog I/O 4 x Combo XLR-1/4" 3-Pin Female Balanced Line/Mic Input
1 x 1/8" / 3.5 mm TRS Female Unbalanced Aux Input
1 x 1/8" / 3.5 mm TRS Female Unbalanced Headphone Output
Digital I/O 1 x 1/8" / 3.5 mm SMPTE Timecode Input
1 x 1/8" / 3.5 mm SMPTE Timecode Output
1 x HDMI Type-D SMPTE Timecode Input
Phantom Power +48 V, Selectable On/Off
Phantom Power Current 10 mA per Channel
Plug-In Power Yes, 3 V
Host Connection 1 x USB Type-C (USB 2.0)
1 x USB Type-A (Control, Text Entry, Thumb Drive, USB 2.0)
Bluetooth Bluetooth 4.0 (Remote)
Performance
Frequency Response WAV:
10 Hz to 80 kHz ±0.5 dB (At 192 kHz)
Gain Range Mic Inputs:
+6 dB to +76 dB
Line Inputs:
-20 dB to +30 dB
Mic/Aux Inputs:
+10 dB to +40 dB
Line/Aux Inputs:
-10 dB to +20 dB
Fader:
Up to +20 dB
Headphone Outputs:
Up to +20 dB
Max Input Level Mic Inputs:
+14 dBu
Line Inputs:
+28 dBu
Mic/Aux Inputs:
-10 dBu
Line/Aux Inputs:
+10 dBu
Max Output Level Outputs:
+7.8 dBu
Headphone Output Power 300 mW per Channel
Dynamic Range A/D Converters:
142 dB
D/A Converters:
115 dB
Impedance Mic Inputs:
4 Kilohms (Active-Balanced)
Line Inputs:
4 Kilohms (Active-Balanced)
Mic/Aux Inputs:
100 Kilohms (Unbalanced)
Timecode Input:
20 Kilohms
Timecode Output:
1 Kilohms
THD+N Inputs:
0.005%
EIN -128 dBu (A-Weighted)
Power
Power Options Batteries, USB Bus Power, AC/DC Power Adapter
Battery Type 4 x AA (Included)
2 x L Series (Requires Optional Equipment, Hot-Swappable, Not Included)
AC/DC Power Adapter 5 VDC (Included)
AC Input Power 100 to 240 VAC, 50 / 60 Hz
Physical
Mounting Options 1/4"-20 Male (Top)
1/4"-20 Female (Bottom)
Operating Temperature -4 to 86°F / -20 to 30°C
Storage Temperature -40 to 185°F / -40 to 85°C
Operating Humidity 0 to 90%
Dimensions 6.5 x 1.4 x 4.6" / 166.0 x 36.0 x 118.0 mm
Weight 19.9 oz / 0.6 kg (Without Batteries)
Packaging Info
Package Weight 2.81 lb
Box Dimensions (LxWxH) 10.25 x 7.4 x 4.25"