Henry Engineering MATCHBOX-HD – Bi-Directional Stereo Level & Impedance Interface

The Henry Engineering MATCHBOX-HD is a professional-grade stereo audio level and impedance interface designed to seamlessly integrate consumer and professional audio equipment. Whether you’re working in radio broadcasting, production studios, or AV systems, the MATCHBOX-HD ensures flawless audio signal compatibility and superior performance.

Designed for today’s demanding digital and analog environments, this bi-directional interface converts unbalanced -10 dBv consumer-level signals to balanced +4 dBu professional levels—and vice versa. It maintains pristine audio quality across both paths while correcting impedance mismatches that often degrade performance.

🟢 Bi-Directional Signal Conversion – Interfaces both consumer and professional audio equipment in either direction
🟢 Pristine Audio Quality – Ensures ultra-low noise, low distortion signal transfer without coloration
🟢 Level & Impedance Matching – Corrects mismatched levels and impedances for optimal performance
🟢 Transformer-Isolated Outputs – Provides galvanic isolation to eliminate ground loops and hum
🟢 Balanced & Unbalanced I/O – XLR and RCA connectors for total versatility in any setup
🟢 Stereo Signal Handling – Full stereo path maintains left/right integrity with precise channel matching
🟢 Built for Broadcast & AV Integration – Trusted in studios, control rooms, OB vans, and production facilities

The MATCHBOX-HD is built to the exacting standards of Henry Engineering, known for their rock-solid reliability and broadcast-ready gear. Its compact design fits easily into any rig, while the robust metal enclosure withstands the demands of daily professional use.

Whether you’re routing audio from a PC to a console, feeding a consumer CD player into a mixer, or simply ensuring clean stereo audio between systems, the Henry Engineering MATCHBOX-HD delivers exceptional clarity and consistency.

For uncompromised signal integrity and seamless system integration, trust the MATCHBOX-HD—the gold standard in level and impedance matching.