PreSonus Quantum HD 8 – High-Channel USB-C Interface for Pro Recording

The PreSonus Quantum HD 8 brings massive I/O capability and pristine 32-bit/192 kHz performance into a sleek, rack-ready form. With eight MAX-HD mic preamps, Fender-inspired instrument inputs, auto-gain, re-amp outputs, and studio software included, it delivers full-band production power in one intuitive package.

Key Features

• 26-in / 30-out USB-C architecture: High-resolution capture with 124 dB dynamic range for exceptional clarity.
• Eight MAX-HD mic preamps (+75 dB gain): Transparent, low-noise preamps ideal for modern microphones.
• Front instrument and re-amp outputs: Guitar-focused inputs co-designed with Fender, plus re-amp outs for creative amp routing.
• Auto-Gain function: Quickly sets ideal input levels for hassle-free recording.
• Universal Control app and front encoder: Full control over gain, phantom, routing, and volume via hardware or desktop/mobile.
• Expanded I/O: ADAT optical, S/PDIF, MIDI, word clock, two headphone outputs, speaker switching and loopback for streaming.
• Studio software bundle: Includes permanent Studio One Pro license and 12 months of Studio One+ add-ons.

Customer Benefits

For creators working with full bands, multi-mic setups, or hybrid recording workflows, the Quantum HD 8 delivers seamless audio fidelity and unmatched flexibility. Enjoy effortless monitoring, creative routing, and desktop or mobile control—all in one high-performance interface.

Quick Specs

• Resolution / Sample Rate: 32-bit, up to 192 kHz
• Mic Preamps: 8 × MAX-HD, digitally controlled gain up to +75 dB
• Instrument Inputs: 2 × Fender co-developed Hi-Z (front)
• Re-amp Outputs: 2 × ¼″ outputs
• Analog I/O: 8 × XLR/¼″ combo, 8 × line outputs, 2 × monitor outputs
• Digital I/O: 2 × ADAT optical, S/PDIF, MIDI via breakout, word clock
• Headphones: 2 × ¼″ outputs with excellent dynamic range
• Controls: Auto-Gain button, illuminated encoder, app control
• Form Factor: 1U rackmount, approx. 48.3 cm × 21.8 cm × 4.3 cm, weight ~2.9 kg

What’s in the Box

• PreSonus Quantum HD 8 USB-C audio interface
• DB-9 breakout cable (ADAT, MIDI, S/PDIF, word clock)
• USB-C to USB-C cable

Use Cases / Ideal For

Perfect for project studios, band recordings, podcasters, and multi-mic setups. Ideal for anyone needing expansive I/O, seamless routing, and software flexibility—all in a compact 1U design.

Compatibility

Compatible with USB-C systems and works seamlessly with ADAT expanders, MIDI gear, and analog or digital workflows. Full control is available through Universal Control, Studio One, or the front panel.

Pros & Cons

✅ Pros:

• High channel count with ultra-low latency and superior audio fidelity
• Clean MAX-HD preamps and flexible front instrument inputs
• Auto-Gain simplifies setup, re-amp and loopback expand creative options
• Full software package included for recording and production

⚠️ Cons:

• MIDI I/O requires the included breakout; not direct on USB-C
• Large format may be overkill for single-user or minimalist setups

The PreSonus Quantum HD 8 brings professional I/O, pristine audio, and creative control together in a compact desktop or rackmount design—giving creators room to grow without compromise.