Wireless over-ear headphones offering high-resolution audio wirelessly or wired. Adaptive noise cancellation, a parametric EQ and crossfeed allow fine tuning, with up to 60 hours of battery life and a supplied hi-res dongle.

Key Information

• Wireless over-ear headphones w/ Hi-Res audio
• Wired and wireless playback up to 24-bit/96kHz
• BTD 700 USB-C Bluetooth dongle included
• Adaptive noise cancellation w/ transparency mode
• Parametric EQ and crossfeed
• Up to 60 hours battery life w/ noise cancelling

Engineered for Endurance and Precision

The Head Box S3 B is a high-performance headphone amplifier engineered around a distinctive fully balanced topology that pushes expectations within its class. Created for listeners who value analytical accuracy, control, and adaptability, it supports both balanced and single-ended headphones while fitting effortlessly into desktop and traditional hi-fi environments. Every design choice prioritizes signal integrity and usability. Its compact form makes it ideal for serious listening without sacrificing space.

Optimised Balance Between Power and Sound

The primary design objective behind the Head Box S3 B was achieving an ideal equilibrium between output strength and perceived sonic refinement. By carefully tuning amplification stages, it delivers authority without compromising tonal accuracy or musical detail. This thoughtful approach allows the amplifier to outperform typical designs at its price point. The result is a sound signature that feels controlled, natural, and consistently engaging.

True Balanced Signal Architecture

The Head Box S3 B employs a completely balanced signal path across both RCA and XLR inputs, maximising channel separation while keeping noise to an absolute minimum. Balanced headphone outputs are provided via 4.4mm Pentaconn and XLR connectors, while single-ended compatibility is maintained through 3.5mm and 6.3mm outputs. This flexibility ensures compatibility with a wide range of headphones. Users can switch between connection types without altering performance integrity.

Balanced Amplification for Maximum Performance

By combining genuine balanced amplification with carefully defined power targets, the Head Box S3 B allows headphones to operate at their intended potential. This design strategy preserves dynamics while preventing unnecessary coloration or distortion. The amplifier maintains clarity even at demanding listening levels. As a result, subtle details and spatial information remain intact.

Precision Aluminium Construction

The amplifier is enclosed in a high-quality, full aluminium chassis that provides excellent mechanical rigidity and effective electromagnetic shielding. This solid construction reduces vibration and protects sensitive internal components. The enclosure also contributes to long-term reliability and thermal stability. Its understated design complements both modern and classic audio setups.

European Craftsmanship and Reliability

Manufactured in Europe by experienced technicians, engineers, and designers, the Head Box S3 B reflects decades of accumulated expertise. Precise assembly standards ensure consistent performance and long operational life. The focus on sustainable manufacturing reinforces its durability and long-term value. Every unit is built to meet audiophile expectations without compromise.

Specifications

What's in the box

• 1x Carry Bag
• 1x Audio Cable
• 1x USB-C Cable
• 1x BTD 700 USB-C Bluetooth Hi-Res dongle