Radial PRO-AV2 2-Channel Passive DI Box for Media and AV Systems

The Radial PRO-AV2 is a passive, two-channel direct injection (DI) box specifically designed for integrating multimedia and audio-visual systems into professional audio setups. Its primary function is to convert unbalanced, high-impedance line-level signals from consumer audio devices into balanced, low-impedance signals suitable for professional mixing consoles, PA systems, or recording interfaces. This process helps maintain audio integrity over long cable runs and prevents signal degradation. The unit employs a transformer-isolated, ultra-quiet passive design centred around custom-wound Eclipse transformers. These components provide a flat frequency response from 20Hz to 18.5kHz and are engineered to handle substantial signal transients without introducing distortion, resulting in a smooth, warm sound character. Key features include a ground lift switch to eliminate hum and buzz caused by ground loops, and a versatile array of input connectors: dual 1/4" jacks, RCA phono sockets, and a 3.5mm (1/8") stereo jack. This allows it to accept signals from instruments, media players, computers, tablets, and smartphones. The robust construction uses a 14-gauge steel chassis for durability in both studio and live environments. The PRO-AV2 is ideally suited for installers, AV technicians, musicians, and content creators who need to reliably integrate consumer audio sources into a professional sound system. Common applications include connecting a laptop's headphone output to a mixer for presentations, feeding audio from a media player into a church or conference PA, or interfacing gaming consoles or set-top boxes with a studio monitoring setup. Its passive operation means it requires no external power, making it a simple, reliable, and permanent solution for solving common audio interface problems in fixed installations or on the road.