ProPatch Relay-Controlled Patchbay64in/64 out 1U Rack Space ProPatch Relay-Controlled Patchbay ProPatch is built around Wolff Audio’s proprietary relay-based switching architecture, delivering truly passive, straight-wire signal routing. There are no buffers, amplifiers, or active electronics in the signal path, preserving impedance, bandwidth, noise performance, and phantom power integrity. The result is direct, balanced routing with no coloration or interaction artifacts. Routing and signal chains are configured via a dedicated app for Windows, Mac, and iPad OS. Complex setups including mults, mono-to-stereo paths, inserts, processors, and AB comparisons can be created, saved, and instantly recalled. The last configuration loads automatically at power-up. Relay switching provides exceptional reliability, low power consumption, and zero heat. The latching design ensures routings remain intact even after power loss. Because the signal path is effectively “just a wire,” ProPatch transparently passes mic level, line level, phantom power, control voltage, digital audio, and MIDI. Rear DB25 connectors provide high-density I/O, while the front panel allows fast integration with TT systems and temporary gear connections. ProPatch removes the friction of manual patching, keeping sessions fast and uninterrupted. Specifications • 128 patch points, 64 × 64 any-to-any routing• Passive relay-based design, zero active electronics in signal path• Straight-wire performance, full bandwidth (DC to measurement limits)• 0% added noise or distortion (within test limits)• Fully balanced internal signal path• Preset-based routing with instant recall• Non-volatile memory, last state auto-loads at power-up• Network control via Wolff Hound utility app• Supports mic, line, CV, MIDI, and timecode• Passes 48 V phantom power with safe, instant switching• High channel density, single rack unit, fanless operation
