The ARX Audiobox ISO Combiner DUO is a dual-channel, transformer-isolated passive combiner designed to handle two sets of balanced sources in a single space-saving unit. It enables clean and reliable combining of two XLR sources into one per channel—ideal for live sound, broadcast, or installation scenarios where space and audio integrity are critical.
Each channel features a pair of transformer-balanced female XLR inputs feeding a transformer-isolated male XLR output. The DUO format uses ARX’s unique DoubleHeader layout, placing one complete channel on the front panel and a second on the rear—effectively delivering two isolated combiners in a compact 1 RU enclosure.
Like all Audibox models, the ISO Combiner DUO is completely passive and requires no power. It’s built into a heavy-duty steel chassis with a matte textured powder coat finish, hardwearing epoxy labeling, and slip-resistant rubber pads. A Kensington-type security slot and optional under-table mounting bracket round out this road-tough, installation-friendly tool.
- Combines two XLR sources per channel
- Front-panel input-select switch
- Two transformer-isolated output channels
- Doubleheader layout: Front and rear panels
- Passive design—no power required
- Rugged steel chassis with powder coat finish
- Compact 1 RU footprint for rack or surface use
- Slip-resistant rubber pads for stability
- Ideal for live sound, install, and broadcast
- Kensington lock slot for added security
- Optional under-table mount bracket available