Sound Devices MixPre-3 II Review: Quality check

Alistair Vance
Written by Alistair Vance

February 8, 2026

Sound Devices MixPre-3 II

Sound Devices MixPre-3 II Review: Quality check

Core features of the Sound Devices audio interface

  • 5 Tracks: stereo mix + 3 single inputs
  • Recordings with maximum 32-bit float / 192 kHz
  • Dynamic range: 142 dB (A weighted, gain = 10 dB, fader = 0 dB)
  • Built-in timecode generator
  • Kashmir microphone preamplifier with 76 db gain
  • Noise: -128 dBu maximum (A-weighting, gain = 76 dB, 150 Ohm source impedance)
  • Limiter per channel
  • Low Cut Filter 40 Hz to 160 Hz, adjustable with 18 dB/Octave
  • 5-in/2-out Audio Interface (USB-C)
  • SD, SDXC or SDHC card recording up to 512 GB
  • Timecode input
  • 3 Mic/line XLR Inputs
  • Stereo aux/mic input with 3.5 mm jack
  • 48V Phantom power
  • 3.5 mm Stereo output
  • Headphone output
  • Powered by 4 x AA batteries, bus-powered via USB-C or mains adapter
  • Free Wingman app for remote control of the MixPre II series
  • Scope of delivery: MX-4AA battery case and MX-PSU power supply unit
  • Dimensions (H x W x D): 36 x 144 x 110 mm
  • Weight: 0.48 kg (without batteries)
  • Suitable bags: Art.484629, Art.484632 and Art.429455 (not included)

Images

Sound Devices MixPre-3 II Review: Quality check

Sound Devices MixPre-3 II Review: Quality check

Sound Devices MixPre-3 II Review: Quality check

Sound Devices MixPre-3 II Review: Quality check

Sound Devices MixPre-3 II Review: Quality check

Sound Devices MixPre-3 II Review: Quality check

Sound Devices MixPre-3 II Review: Quality check

Sound Devices MixPre-3 II Review: Quality check

Sound Devices MixPre-3 II Review: Quality check

Additional Information

Customer Review Summary

The Sound Devices MixPre-3 II is an exceptional field recorder that excels in both quality and usability. Its handling is superb, with a user-friendly touch-screen interface that, while compact, is easy to navigate. The preamps are impressively clean, providing ample gain, making it suitable for various recording scenarios, from interviews to outdoor sound capture.

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With its 32-bit float recording, the MixPre-3 II stands out as a top-tier choice for digital audio recording, allowing for flexibility in post-production to rectify any audio levels. It features multiple inputs, including three microphone/line inputs, USB-A and USB-C connectivity, a headphone jack, and a memory card slot, all packed into a portable design. However, users should be aware that the battery life with the 4x AA sled is limited, and it is advisable to consider the NP battery sled or a power bank for extended use.

The build quality is robust, and the knobs operate smoothly, complemented by the innovative ‘glow rings’ around the input controls. While the power button’s location can be inconvenient, and the battery compartment is not the most practical, these minor drawbacks do not overshadow the overall performance.

Whether used as a recorder or an audio interface, the MixPre-3 II delivers flawless sound quality. It has proven to be an invaluable tool for both filmmakers and sound professionals, providing versatility in various applications. Overall, it is highly recommended for anyone serious about achieving exceptional audio quality.



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Alistair Vance

Based in Bristol, Al has spent over a decade mixing local bands before specialising in hybrid studio consulting. He’s obsessed with the price-to-performance ratio, helping musicians achieve a "Radio Ready" sound without the need for a £50,000 Neve console. No fluff, just honest gear reviews to get your tracks sounding professional on a real-world budget.

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