Tag: mixpre

Legacy Approved Media – MixPre II Series and MixPre Series

Sound Devices extensively tests removable recording media with the MixPre-3 II, MixPre-6 II, MixPre-10 II, and the legacy MixPre-3, MixPre-6, and MixPre-10T audio recorders.

SD Cards

Sound Devices recommends its own brand of SD card – the SAM-64SD and SAM-128SD, listed below – which has been optimized and extensively tested to ensure fast and flawless performance when used with the MixPre Series of recorders. However, many SD, SDHC, and SDXC cards from other reputable manufacturers, like Delkin or SanDisk, that meet or exceed class 10 speeds are acceptable.

For best media performance, Sound Devices recommends occasionally performing a full reformat of an SD card per the “Overwrite Format” method from the SD Association. The Overwrite Format deletes file/directory entries by initializing file system parameters of the card (same as with Quick Format), and erases all data by overwriting the user data area completely. The Overwrite Format takes more time to complete than the Quick Format method. More information can be found on the SD Association’s website. Please note that all files stored on the card will be lost during the formatting process. After using the SD Memory Card Formatter, the card will still need to be formatted in the mixer-recorder.

MicroSD to SD Card adapters are not recommended for use in any MixPre Series audio recorder.

Tested SD cards:

64 GBSound DevicesSD/SDXC, UHS-II, 240 MB/s (read) and 100 MB/s (write)
128 GBSound DevicesSD/SDXC, UHS-II, 240 MB/s (read) and 100 MB/s (write)
32 GBAmplimAmplim SDXC UHSII V90 32GB
64 GBLexarProfessional 633x 95 MB/s V30
64 GBSanDiskExtreme; SDXC/UHS-1,V30, U3, 150MB/s (Model # SDSDXV6-064G-GNCIN)
64 GBIntegral Ultima ProIntegral Ultima Pro SDXC I V30 64GB
64 GBAmplimAmplim SDXC UHSII V90 64GB
128 GBFreetailFreetail Evoke Pro 128GB V60, UHS II
128 GBWiseWise SDXC II 285MB/s 128GB
256 GBSanDiskExtreme PLUS, SDXC, 150 MB/s, UHS-I, V30
256 GBSanDiskExtreme, SDXC, 150 MB/s, UHS-I, V30

USB Thumbdrives

All MixPre II models and the MixPre-10T supports automatic copying of active projects from its SD card to a USB thumbdrive inserted into its USB-A port. For reliable operation, Sound Devices highly recommends only using approved USB thumbdrives, listed below:

NOTE: Because USB thumbdrives vary massively in performance, others not listed here may work, but their reliability cannot be guaranteed.

64 GBPNYPNY “Elite-X Fit” USB 3.1 64 GB 200 MB/s
128 GBPNYPNY “Elite-X Fit” USB 3.1 Flash Drive – 200 MB/s
64 GBSanDiskCruzer Fit USB 2.0 Low-profile Flash Drive (SDCZ33-064G-B35)
32 GBSanDiskCruzer Fit USB 2.0 Low-profile Flash Drive (SDCZ33-032G-B35)


The media listed below has been tested by Sound Devices, but discontinued by the manufacturer.

SD Cards

32 GBSound DevicesThe SAM-32SD has been discontinued. Recommended alternative: SAM-64SD.

USB Thumbdrives

32 GBSamsungUSB 3.0 Flash Drive Fit (MUF-32BB/AM)
64 GBSamsungUSB 3.0 Flash Drive Fit (MUF-64BB/AM)

Unapproved Media

The media listed below currently fail our intensive media approval tests. We highly recommend NOT using this media.

64 GBSanDiskExtreme PRO 170MB/s, 64 GB
128 GBSanDiskExtreme PRO 170MB/s, 128 GB

Products Mentioned


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MixPre-10 II

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MixPre-3 II

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MixPre-6 II

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What is different about the MixPre II compared to the previous MixPre models? 

All MixPre II Series recorders feature 32-bit float recording, timecode generators, 192 kHz recording, adjustable limiters, auto-copy to USB drives, extended Pre-roll, output delay, and access to the optional NoiseAssist plugin. The MixPre-10 II TA3 balanced outputs are now +18 dBu.

I recently purchased a new MixPre and the screen looks different from other models I’ve seen. Why is that?

The global parts shortage gave us the opportunity to switch from an LCD display to a higher-contrast, richer-color OLEDdisplay for the MixPre II Series. Your MixPre features the updated display.

Will the above features be backwards compatible with previous models? 

The updated hardware on the MixPre II allows for the new features and functionality.

Will you continue to support the original MixPre series?

The MixPre Series will continue to receive updates that the hardware will support. 

What benefits does 32-bit float recording offer?

Read our article on the benefits of 32-bit float recording.

What applications support 32-bit float files?

View the list of compatible applications here.

I have no DAW handy, and I recorded my tracks in 32-bit float mode too hot. Can I adjust the file’s gain after recording?

Yes. The MixPre II has a very powerful feature called Remix/Rerecord which allows you to simultaneously play back a file and record a new L/R mix while adjusting the gains with the fader knobs.

What do I need to stream in 32-bit float?

32-bit float USB audio streaming requires Mac OS Catalina or higher (10.15+) or Windows 10/11 with the ASIO driver and an application that supports 32-bit float.

How does the MixPre II achieve such high dynamic range in 32-bit float mode?

The MixPre II recorders feature Sound Devices’ own patented topology of multiple analog-to-digital converters. These converters appear in the circuitry after the Kashmir microphone preamplifier stage. They enable the recording of very-low distortion, ultra-high dynamic range audio. The MixPre II’s A-to-D’s can resolve more than 142 dB of dynamic range. Together with their Kashmir microphone preamplifiers and 32-bit float files, the MixPre II captures audio that is limited only by the capabilities of the microphone.

How do the MixPre II mic preamps compare to the original MixPre series?

The new MixPre II models, like the original MixPre-3, MixPre-6, and MixPre-10T recorders, offer the same discrete class-A Kashmir microphone preamplifiers with an exceptionally low noise-floor regardless of the gain setting. The recorder’s input gain, whether set high or very low, produce excellent results.

Any improvements to the headphone knob compared to the original MixPre models?

The MixPre II comes with a handy headphone knob “tire”. This allows for easy fingertip operation. Conveniently, this tire is removable in case large connectors or cables get in the way. 

Will the MixPre II support my control surface? Wingman?

Yes. The MixPre II supports the same control surfaces and Wingman functionality as the previous MixPre models.

Korg NanoKontrol Studio 
Korg NanoKontrol 2
Novation LaunchControl XL
Akai MidiMix
P.I. Engineering’s X-keys® Programmable Keypads, Sticks & Keyboards

Is Ambisonics supported? 

Yes. An optional Ambisonics Plugin is available for the MixPre-6 II and MixPre-10 II on the Sound Devices plugin store. 16- and 24-bit operation is supported. 

Is binaural monitoring available when using Ambisonics?

Yes. Binaural monitoring is available (up to 48 kHz) for record and monitoring. 

Is there a multitracking feature on the MixPre II for musicians? 

All MixPre II models support the Musician Plugin, so you can easily create a song using your MixPre II as a standalone recorder featuring over-dub, reverb, metronome, and more. Visit the Sound Devices plugin store for more information.

What are my limiter options? 

In 16- or 24-bit operation, the MixPre II offers analog/digital limiters similar to the original MixPre recorders. These limiters have been improved to give control over ratio, release, and threshold. In 32-bit float mode, the multi-stage A-to-D converters are active to capture the full dynamic range of the incoming signal; no limiters are needed. 

Is timecode accuracy maintained while powered down?

All of the MixPre II Series now include a full-featured internal timecode generator and are accurate to better than 0.2 ppm (0.5 frames per 24 hours). When the unit is off, the MixPre II Series maintains accurate timecode for up to four hours, even without batteries or external power.

What’s in the box?

AC wall adapter
USB-C to USB-C cable
MX-4AA Battery Sled (MixPre-3 II and MixPre-6 II)
MX-8AA Battery Sled (MixPre-10 II)
Anti rotation pin 
Allen wrench
Headphone tire.

What are my media options?

We recommend our SAM-64SD or SAM-128SD card. Additionally, a full list of third-party compatible cards is available.

Can I upgrade my original series MixPre?

Due to the hardware differences, an original MixPre cannot be updated to the MixPre II.

Does Sound Devices offer a trade-in program?

The MixPre II Series is available for sale only through our resellers. We do not offer trade-ins for the original MixPre Series.

What is MixAssist? 

MixAssist reduces ambient noise and reverberation when mixing and recording with multiple microphones by attenuating unused microphones. The advanced automixer incorporates multiple proprietary algorithms for reducing noise and phase artifacts, including Noise Adaptive Threshold, MaxBus, Last Mic Lock-on, Off-Attenuation, and NOMA (Number of Open Mic Attenuator). This is ideal for podcasts, scripted or unscripted dialogue, panel discussions, house of worship applications and more.

MixAssist is available as a plugin from the Sound Devices Store. MixAssist works with both the MixPre and MixPre-II Series. MixAssist is incompatible with the MixPre-M models or while in Musician, Ambisonics, or Remix Modes. 

What is NoiseAssist?

NoiseAssist is an advanced signal processing algorithm that reduces background noises such as traffic, generators, HVAC noise, and more. It features a simple user interface with only one adjustment, the amount of background noise to suppress. The plugin is available now for MixPre-3 II, MixPre-6 II, and MixPre-10 II at store.sounddevices.com for an introductory price of $600.

Can I use a USB hub?

Starting with firmware v5.00, all MixPre models support the use of USB hubs. USB hubs allow simultaneous use of a USB keyboard, USB Controller, and a USB Thumb-drive.

Note: USB Drives are supported by the MixPre-3 II, MixPre-6 II, MixPre-10 II, MixPre-10M, and MixPre-10T.

We recommend powered USB hubs for optimal performance. Read more about recommended USB hub practices here.  

What are my USB routing options? 

The new USB Output routing matrix added in v5.00 allows control of what signals are sent to the computer and in which order they get sent. The matrix allows for mix-minus and selection between pre-fade vs. post-fade isolated channels (M models and music projects allow post-fade only).

In Music projects (or MixPre-M models), do I need to route USB returns from my computer to a channel just to monitor it in my headphones?

USB headphone source can now be routed directly to headphones without using a channel while in Music Mode or on the MixPre-M models. You can create a custom USB headphone preset to monitor audio from a DAW while tracking a live instrument on the MixPre with no latency. 

Will Dugan Automixing come to the MixPre Series? 

There are no plans to implement Dugan Automixing on the MixPre. MixAssist is a phenomenal automixer which works extremely well.

Which modes work with 32-bit float recording? 

The MixPre II records 32-bit float files in Advanced and Custom mode when Record is set to “Advanced.” While in Music Mode, Remix, or Ambisonics Modes, 32-bit float recording is unavailable. The MixAssist plugin can be used while recording 32-bit files.

Products Mentioned


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MixPre-10 II

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MixPre-3 II

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MixPre-6 II

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Products Mentioned


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Interfacing the MixPre with a Canon XL1S

The Canon XL1 and XL1S cameras are popular DV acquisition tools. While photographers appreciate these cameras because of their ergonomics and image quality, audio engineers are not as happy with them because of their consumer-grade audio connectors and controls.


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