Gainlab Audio Auditor GLA501-HP1: the new 500-series headphone amplifier from NAMM 2026

Gainlab Audio Auditor GLA501-HP1: Professional Headphone Amplifier in 500-Series Format.

Introduced at the NAMM Show 2026, the Gainlab Audio Auditor GLA501-HP1 is the answer to the needs of those working in the studio or in the field who are looking for headphone amplification up to the highest professional standards.

Maximum quality, minimum footprint: the potential of the 500-series format

In the world of professional audio, the 500-series format has always been synonymous with modularity, compactness and performance. With Auditor, Gainlab Audio takes this concept to a new level: a powerful, transparent and protected headphone amplifier designed to integrate seamlessly into any 500-standard chassis.

Key features of Auditor GLA501-HP1

Class-A output stage for faithful response and controlled dynamics Ultra-low distortion and linear frequency response over the entire bandwidth Exceptionally wide headroom, even at high volumes Built-in headphone protection: DC offset, overcurrent and power-on transients Mono monitoring and mute function always accessible Signal and power indicators for clear operational feedback Signal pass-through for parallel monitoring or advanced routing Compatibility with wide impedance headphones

Designed for long-term reliability

Auditor is not only a studio device but also an ideal companion for use in the field. Its design aims for operational reproducibility, thanks to an intuitive interface and the ability to immediately view the status of the machine. This allows operators to maintain control even in critical or itinerant environments.

Available now at Milk Audio Store

The Gainlab Audio GLA501-HP1 Auditor is available at Milk Audio Store, both online and in our Rome store. If you're looking for a headphone amplifier that delivers power, precision and safety in a compact size, Auditor is the product for you.

👉 Find out more and order now at milkaudiostore.com