Gustard Audalytic HP70

Balanced Headphone Amplifier and Preamplifier

• Fully balanced, discrete Class-A circuitry: Four pairs of power transistors deliver high output power and excellent control.
• LME49720 dual operational amplifier: Wide dynamic range and exceptional fidelity for lifelike sound reproduction.
• R-2R relay volume control: Provides lossless precision and perfect channel balance across all paths.
• Versatile inputs and outputs: RCA/XLR inputs, balanced 4.4-mm and unbalanced 6.35-mm outputs.
• High-impedance compatibility: Effortlessly drives headphones up to 600 Ω.
• Pure preamp mode: Switchable output for seamless integration into speaker systems.
• Multi-stage power supply: A low-noise 30-VA transformer and multi-stage regulation ensure a stable, clean power supply.
• High-quality construction: The aluminum alloy chassis offers excellent shielding and an elegant feel.

Audalytic HP70

The Audalytic HP70 is a high-end headphone amplifier and preamplifier that delivers exceptional sound quality thanks to its fully balanced and discrete architecture.

Developed by Audalytic, a Gustard brand specializing in affordable high-end audio solutions, the HP70 is designed for discerning audiophiles seeking powerful and precise amplification for their headphones or high-quality preamplification.

The HP70 features a fully balanced, discrete Class A topology that delivers robust power with precise control using four pairs of power transistors.

Each stage is tuned for minimal distortion, while the LME49720 operational amplifiers ensure transparency and musical realism.

The built-in low-noise 30-VA transformer and multi-stage regulation circuits minimize ripple and interference, ensuring a clean, stable sound even under heavy load.

The precision-machined aluminum chassis improves both signal shielding and thermal stability—for a sound that is as pure as it is powerful.

Fully Balanced Design and Discrete Components

The HP70 is distinguished by its fully balanced and discrete design, which utilizes high-quality components such as the LME49720 operational amplifier.

This design is based on carefully selected power transistors and discrete components that ensure linear amplification and minimal distortion.

Each stage of the amplifier is optimized to deliver fast response and pure sound reproduction with remarkable dynamics and clarity. The use of discrete components also enables better audio signal management, reducing artifacts and improving overall sound fidelity.

Versatility and Connectivity

In addition to its function as a headphone amplifier, the HP70 can also serve as a preamplifier, making it compatible with a wide variety of audio systems. It is designed to integrate seamlessly into a hi-fi system, either in combination with an external DAC or as a standalone component.

Optimized Power Supply Stage

The HP70’s power supply stage is designed to ensure a stable and clean power supply, which is essential for optimal audio performance. Thanks to careful engineering and high-quality components, the power supply minimizes background noise and interference, ensuring an uncompromising listening experience. This stability results in better instrument separation, a wider soundstage, and more detailed reproduction, even in the most complex musical passages.

Build Quality and Finish

The Audalytic HP70 features a robust, meticulously crafted design with a sleek, elegant finish. Its metal housing ensures effective heat dissipation and protection against interference, while its intuitive controls allow for precise adjustment of volume and audio settings.