PreSonus

PreSonus Quantum HD8 USB-C Audio Interface Studio One

4.4 (156 reviews)
USB-Cphantom power

Record in pristine 32-bit/192 kHz quality with eight MAX-HD preamps, Fender-designed instrument inputs, and Studio One Pro included.

$791.99*$872.92Save 9%
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The PreSonus Quantum HD 8 is a professional USB-C audio interface engineered for demanding recording and production workflows. At its core are eight newly redesigned MAX-HD microphone preamps offering +75 dB of gain with transparent, low-noise performance that pairs well with everything from sensitive condenser microphones to dynamic workhorses. The high-performance converters operate at up to 32-bit/192 kHz resolution, ensuring that every detail of a performance is captured with exceptional fidelity. A custom low-latency driver keeps round-trip latency to a minimum, enabling real-time monitoring and plugin processing during tracking without perceptible delay.

The Quantum HD 8 stands out with its Fender co-developed instrument inputs, which are specifically voiced and impedance-matched for guitar and bass — a feature that appeals directly to players who want their DI tracks to feel responsive and accurate. Dedicated re-amp outputs let you send recorded tracks back through physical amplifiers and effects for creative experimentation. With 26 inputs and 30 outputs, the interface handles complex routing scenarios for large sessions with ease. The Auto Gain feature streamlines setup by automatically dialing in optimal input levels, and the Universal Control app allows remote adjustment of preamp settings from any device. Bundled with a perpetual Studio One Pro license and a 12-month Studio One+ Hybrid Membership, the Quantum HD 8 delivers a complete, high-end recording solution.

Key Features

LOW-HIGH PERFORMANCE SIGNAL FLOW. Our custom low-latency driver provides exceptionally low audio latencies when recording, and high-performance converters complete the front end to ensure that you sound your best throughout your entire signal chain.

ALL-NEW MAX-HD MIC PREAMPS. The Quantum HD 8 features eight newly designed mic preamps with +75 dB of gain. Our high-definition MAX-HD preamps are transparent, low-noise, and digitally-controlled analog, making them ideally suited to today’s most popular microphones

CO-DEVELOPED WITH FENDER. Built by the best ears in the business, guitarists and bassists will love the instrument input co-developed with Fender engineers – industry experts who designed them specifically for guitar and bass.

PRO RECORDING SOFTWARE LICENSE INCLUDED: Studio One Pro perpetual license.

AUTO GAIN. An Auto Gain button sets the perfect gain level for your microphones and instruments, so you get the perfect take every time.

RE-AMP OUTPUTS. Re-amp audio directly from your DAW and use amps and effects to sculpt your sounds. Send audio from your DAW to your guitar or bass amp and re-record it to experiment with different amps, pedals, and mic placements.

UNIVERSAL CONTROL APP. Quantum works on any mobile or desktop device, so you’re ready to record whenever inspiration strikes – whether on your phone, tablet, or in your home studio. Critical preamp functions like preamp gain, phantom power, and more can be controlled with the Quantum HD 8’s flexible front panel, or right from Studio One and the Universal Control app, so you can dial in the perfect gain staging without looking away from your recording session.

Specifications

Brand
PreSonus
Model
Quantum HD 8
Inputs / Outputs
26 x 30
Resolution
32-bit / 192 kHz
Preamps
8x MAX-HD Mic Preamps (+75 dB Gain)
Instrument Inputs
Co-developed with Fender
Re-amp Outputs
Yes
Connectivity
USB-C
Included Software
Studio One Pro (Perpetual License), 12-Month Studio One+ Hybrid Membership
Features
Auto Gain, Universal Control App, HDMI-CEC

Pros & Cons

👍 Pros

  • Eight newly designed MAX-HD preamps with +75 dB gain deliver transparent, low-noise recording
  • Fender co-developed instrument inputs are purpose-built for accurate guitar and bass capture
  • Includes a perpetual Studio One Pro license, eliminating the need to purchase a separate DAW
  • 26x30 I/O count at 32-bit/192 kHz supports large multi-track sessions
  • Auto Gain feature sets optimal input levels automatically for fast, reliable setup

👎 Cons

  • Premium price point places it well above entry-level and mid-range interfaces
  • Requires USB-C connectivity, which may need an adapter on older computers
  • The extensive I/O and feature set may be more than home studio users need
  • Large form factor takes up considerable desk or rack space compared to smaller interfaces

Frequently Asked Questions

It comes with a perpetual license for Studio One Pro and a 12-month Studio One+ Hybrid Membership, giving you a full professional DAW right out of the box.
The Quantum HD 8 provides 26 inputs and 30 outputs, offering extensive routing for multi-track recording and complex studio setups.
The instrument inputs were co-developed with Fender engineers, specifically designed and voiced for guitar and bass to capture the nuances of those instruments accurately.
Yes, it uses a custom low-latency USB-C driver that delivers exceptionally low round-trip latency, making real-time monitoring and plugin-based effects processing practical during recording.
Yes, preamp gain, phantom power, and other settings can be adjusted from within Studio One or the Universal Control app on any mobile or desktop device.