Hear Technologies Hear Back PRO Hub Mainframe The bare four-slot Hub frame, sold without cards or Mixers

The Hear Back PRO Hub Mainframe is the bare 1U rack frame that anchors a PRO system, sold without any interface, output, or network cards and without Mixers, for shops assembling a system from individually chosen cards rather than a pre-configured four-pack. Its four card slots each accept any analog or digital input card, an output card, or an 8-port Mixer network card, so the frame can be built out as analog, ADAT, AES/EBU, Dante, Waves SoundGrid, or MADI, or any mix of those.

A single Hub supplies signal and power to as many as 32 Mixers, eight per Network Card, each over one standard Cat6 cable. Firmware V5 and V6 let the frame run two independent input sources simultaneously, for example analog and Dante at once, and Hubs daisy-chain together to grow a system beyond one frame's 32 channels of input.