PreSonus Quantum HD 8 - 26x30 32-Bit/192 kHz USB-C Audio Interface with Microphone Preamps in Black Finish

The PreSonus Quantum HD 8 is a powerful 26x30 USB-C audio interface designed to provide exceptional performance for large-scale recording sessions. Combining nearly 30 years of design expertise with cutting-edge technology, the Quantum HD 8 offers unrivaled audio fidelity, making it ideal for complex multi-instrument setups, large ensembles, or professional studios. Featuring eight all-new MAX-HD microphone preamps with a remarkable +75 dB gain range, this interface captures every detail with high accuracy and depth. The Quantum HD 8 is designed to deliver ultra-low latency performance, ensuring that every recording is seamless and crystal clear. Whether you're recording a band, mixing a film score, or working on intricate production projects, this interface delivers high-definition sound with impeccable precision.

Thanks to its robust set of connectivity options, the Quantum HD 8 provides flexible integration into any studio environment. It features multiple input and output options, including eight analog line outputs, two re-amp outputs for flexible tone shaping, and optical ADAT I/O for additional expandability. The front-facing instrument inputs, co-developed with Fender, are optimized for guitarists, ensuring a smooth and clean connection when recording instruments. With 32-bit conversion, 192 kHz sample rates, and a dynamic range of 123 dB, the Quantum HD 8 ensures that your recordings retain maximum clarity and detail, even in the most demanding situations. The inclusion of the Universal Control app enables full control and metering from mobile devices, desktops, or tablets, offering complete flexibility when managing your audio setup.

The Quantum HD 8 also features powerful headphone outputs with independent volume controls, allowing for multiple monitoring options. Its digital trim and seamless integration with S/PDIF, ADAT, and Word Clock synchronization ensure that you can achieve professional-level synchronization with other studio equipment. With its sleek, rackmountable design, the Quantum HD 8 is ready to handle any recording scenario, delivering both power and precision in a portable and robust unit.

Features

• 26x30 I/O with 8 analog inputs and 8 analog outputs for extensive connectivity
• 8 MAX-HD microphone preamps with +75 dB gain range for precise, high-quality recordings
• Front-facing instrument inputs co-developed with Fender for seamless guitar and bass recording
• 32-bit conversion with 192 kHz sample rate for ultra-high-definition audio
• Dynamic range of 123 dB for clear, distortion-free audio capture
• Two re-amp outputs for flexible audio tone shaping and experimentation
• 8 balanced 1/4-inch TRS line outputs for routing audio to multiple destinations
• 2 optical ADAT inputs and 2 outputs for expanding to up to 16 additional channels
• 2 stereo headphone outputs with 118 dB dynamic range and independent volume control
• S/PDIF I/O and MIDI I/O for easy integration with external gear
• Universal Control app for full control and metering from desktop, mobile, or tablet devices
• Supports sample rates of 44.1, 48, 88.2, 96, 176.4, and 192 kHz for flexible recording quality
• Word Clock I/O for synchronization with other studio equipment (AES-11 compliant)
• Power input: 100-240V, 50 or 60 Hz for global compatibility
• Compact, rugged design with rackmountable features and dimensions of 19 x 8.6 x 1.7 inches
• Weight: 6.3 lbs for durable, portable use

Specifications

AD / DA Conversion

• Sample Rates: 44.1, 48, 88.2, 96, 176.4, 192 kHz
• Bit Depth: 32-bit

Instrument Inputs

• Connector Type: 1/4-inch Female
• Gain Range: -7 dB to +68 dB
• Maximum Input Level: +21 dBu (unbalanced, minimum gain)
• Frequency Response: 20 Hz to 20 kHz, +/- 0.1 dB (unity gain, reference 1 kHz)
• Dynamic Range: 111 dB (A-weighted, minimum gain)
• THD+N: 0.0003% (1 kHz, minimum gain)
• Input Impedance: 1M Ohms

Microphone Inputs

• Connector Type: Combo-style, XLR / TRS (digital control, +75 dB mic range)
• Maximum Input Level: +18 dBu (balanced, minimum gain)
• Gain Range: 0 to +75 dB
• Frequency Response: 20 Hz to 20 kHz, +/- 0.1 dB (unity gain, reference 1 kHz)
• Dynamic Range: 116 dB (A-weighted, minimum gain)
• THD+N: 0.002% (1 kHz, minimum gain)
• EIN: -130 dBu (max gain, 150 Ohms, 20 kHz BW, A-weighted)
• Input Impedance: 1,600 Ohms

Line Inputs

• Connector Type: Combo-style, XLR / TRS
• Maximum Input Level: +18 dBu (balanced, minimum gain)
• Frequency Response: 20 Hz to 20 kHz, +/- 0.1 dB (unity gain, reference 1 kHz)
• Dynamic Range: 118 dB (A-weighted, minimum gain)
• THD+N: 0.001% (1 kHz, minimum gain)
• Input Impedance: 10K Ohms
• Digital Trim: -12 to +12 dB

Main Outputs

• Connector Type: 1/4-inch Female, TRS
• Maximum Output Level: +18 dBu
• Frequency Response: 20 Hz to 20 kHz, +/- 0.2 dB (unity gain, reference 1 kHz)
• Dynamic Range: 123 dB (A-weighted)
• THD+N: 0.001% (1 kHz, +4 dBu)
• Output Impedance: 51 Ohms
• Trim Range: -∞ dB to 0 dB

Line Outputs

• Connector Type: 1/4-inch Female, TRS
• Maximum Output Level: +18 dBu
• Frequency Response: 20 Hz to 20 kHz, +/- 0.2 dB (unity gain, reference 1 kHz)
• Dynamic Range: 123 dB (A-weighted)
• THD+N: 0.001% (1 kHz, +4 dBu)
• Output Impedance: 51 Ohms
• Trim Range: -∞ dB to 0 dB

Re-Amp Outputs

• Connector Type: 1/4-inch Female, TS
• Maximum Output Level: +4 dBu (Balanced)
• Frequency Response: 20 Hz to 20 kHz, +/- 0.3 dB (unity gain, reference 1 kHz)
• Dynamic Range: 117 dB (A-weighted)
• THD+N: 0.001% (1 kHz, +4 dBu)
• Output Impedance: 100 Ohms
• Trim Range: -∞ dB to 0 dB

Headphone Outputs

• Connector Type: 1/4-inch Female, TRS (1-4)
• Maximum Output Level: 11 dBu (50 Ohms)
• Frequency Response: 20 Hz to 20 kHz, +/- 0.3 dB (unity gain, reference 1 kHz)
• Dynamic Range: 118 dB (A-weighted)
• THD+N: 0.001% (1 kHz)
• Output Impedance: 33 Ohms
• Trim Range: -∞ dB to 0 dB

S/PDIF I/O

• Connector Type: Phono RCA (1 in, 1 out)
• Supported Sample Rates (kHz): 44.1, 48, 88.2, 96

ADAT I/O

• Connector Type: Optical TOSLINK (2 in, 2 out)
• Format: ADAT Digital Lightpipe with S/MUX II
• 16 channels at 44.1/48 kHz
• 8 channels at 88.2/96 kHz

Word Clock I/O (HD 8 Only)

• Specification: AES-11 2009 Annex B
• Connector Type: BNC
• Jitter: Complies with AES 3-4-2009 (<0.025 UI)

MIDI I/O

• Connector Type: 5-pin DIN (off DB-9)

Synchronization Sources

• Sources: Internal, ADAT, S/PDIF, and Word Clock (HD 8 only)

Power

• HD 8 Connector Type: IEC 3-conductor receptacle
• HD 8 Configuration: Internal, Universal
• HD 8 Power Input: 100-240V, 50 or 60 Hz
• HD 2 Connector Type: DC Connector
• HD 2 Configuration: External, Universal
• HD 2 Power Input: 12V DC, 2A

Physical

• Length: 19 inches
• Width: 8.6 inches
• Height: 1.7 inches
• Weight: 6.3 lbs