Audalytic HP70 Headphone Amplifier and Balanced Preamplifier
High-End Headphone Amplifier, Balanced Outputs, Low Noise, Full R2R Compatibility
The Audalytic HP70 is a high-end headphone amplifier and balanced preamplifier designed for audiophiles seeking natural, transparent sound and precise control in headphone listening or as part of a Hi-Fi system. Developed by Audalytic (Gustard), the HP70 combines a discrete R2R-inspired amplification stage, ultra-low noise design, and balanced analog architecture to deliver exceptional clarity, wide dynamics, and musical detail.
Whether driving high-impedance headphones, active speakers, or serving as a preamplifier for a full system, the HP70 provides accurate, fatigue-free listening with excellent tonal balance.
Discrete R2R-Inspired Amplification
At the core of the HP70 is a discrete amplification stage inspired by R2R design principles. This ensures:

• Natural timbre and harmonic accuracy
• Wide dynamic range and clean transient response
• Precise detail retrieval
• Faithful reproduction of high-resolution recordings

The amplifier is fully optimized for both headphone and line-level output, providing smooth and detailed performance across all audio content.
Balanced and Single-Ended Outputs
The Audalytic HP70 features simultaneous balanced and single-ended outputs:

• Balanced XLR output: optimal for high-end preamplifiers and active speakers
• Single-ended RCA output: compatible with standard amplifiers and headphone adapters

Balanced design reduces noise and crosstalk, ensuring stable, transparent, and dynamic sound for high-end headphones or integrated audio setups.
High-Performance Headphone Amplification
The HP70 can drive a wide range of headphones, from sensitive IEMs to demanding over-ear models. Key features include:

• Ultra-low output impedance for precise control
• High current capability for high-impedance headphones
• Smooth and extended frequency response
• Minimal distortion for long, fatigue-free listening sessions

Low-Noise Power Supply and Upgrade Options
The HP70 includes a low-noise internal power supply to minimize interference and preserve signal purity. For advanced users, it also supports an external DC power supply (9–18V) for further performance optimization and system tailoring.
Elegant Design and User-Friendly Operation
Housed in a precision-machined anodized aluminum chassis, the HP70 combines durability with a clean, modern aesthetic. An intuitive front panel, complete with high-quality rotary controls, allows effortless adjustment of volume and gain. The compact footprint makes the HP70 ideal for desktop setups or high-end rack systems.
Why Choose the Audalytic HP70?

• Discrete R2R-inspired amplification
• Balanced XLR and single-ended RCA outputs
• Ultra-low noise design for headphones and preamplifier use
• Smooth, accurate, and fatigue-free listening
• Wide compatibility with high-impedance and sensitive headphones
• Designed by Gustard / Audalytic

The Audalytic HP70 is the perfect choice for audiophiles seeking transparent, musical headphone amplification, combined with a versatile balanced preamplifier for modern high-end audio systems.