PreSonus Quantum HD 8 – 26 x 30, 32-bit / 192 kHz USB-C audio interface with 8 MAX-HD mic preamps, high-performance converters, and low-latency drivers. It offers advanced signal processing, flexible routing, and DSP monitor mixing. On board, there is a rich effects section with loopback, auto gain, and extensive performance functions.
PreSonus Quantum HD 8 is an environment for sound creation designed for project studios and full band recordings. It features 8 combo inputs for mics, lines, or instruments, with preamps offering +75 dB gain and co-developed Fender instrument inputs. Flexible I/O with ADAT, S/PDIF, and reamping enables a wide range of configurations – including new features for the PreSonus ecosystem.
Processing is deeply integrated: MAX-HD preamps with digital control, phantom power, and auto gain on every channel, DAW integration, support for mobile recording. Recording can be done in real-time via USB-C with 124 dB dynamic range – for high-fidelity capture of sources. The interface offers front-panel controls, full-color screen, and advanced routing options.
KEY FEATURES
- 26 x 30 USB-C audio interface with 32-bit / 192 kHz AD/DA conversion
- 8 all-new MAX-HD mic preamps with +75 dB gain, transparent and low-noise
- Front-facing instrument inputs co-developed with Fender for guitar and bass
- High-performance converters with 124 dB dynamic range
- Custom low-latency drivers for exceptional audio performance
- Auto Gain button for automatic level setting
- DSP monitor mixer with loopback for zero-latency monitoring
- Reamping outputs for creative signal routing
- Full-color, high-resolution screen for easy navigation
- Universal Control app for remote control and integration
- Supports recording on Mac, Windows, iOS, Android devices
- 16 ADAT optical I/O (8 in/8 out) and stereo S/PDIF I/O
- Expandable via ADAT standalone mode for additional preamps
- Includes Studio One Pro perpetual license and 12-month Studio One+ Hybrid
- Rackmountable 1U design
TECHNICAL SPECIFICATIONS
- Type: USB-C Audio Interface
- Channels: 26 x 30
- Inputs - Mic Preamps: 8 x XLR/TRS combo (mic/line/hi-z)
- Phantom Power: Yes, switchable per channel
- Inputs - Instrument: 2 x 1/4" (front panel)
- Outputs - Main: 2 x 1/4" TRS (balanced)
- Outputs - Line: 8 x 1/4" TRS (balanced)
- Outputs - Reamp: 2 x 1/4"
- Headphones: 2 x 1/4" TRS stereo
- Digital I/O: 16 x ADAT Optical (8 in/8 out), 2 x S/PDIF coaxial
- USB: USB-C (compatible with USB 2.0/3.0)
- Computer Connectivity: USB-C
- A/D Resolution: 32-bit / up to 192 kHz
- Dynamic Range: 124 dB
- Software: Studio One Pro, Studio One+ Hybrid (12 months), Universal Control
- Power Source: External power supply
- Rackmountable: Yes, 1U
- Height: 1.75"
- Width: 19"
- Depth: 12"
- Weight: 8.6 lbs.






