JK Audio Universal Host Desktop Digital Hybrid for VoIP/PBX

The JK Audio Universal Host turns an IP or PBX telephone into an interview station, connecting between the handset and the base for talk show quality caller audio from most business phone systems.

Connect a professional dynamic mic and headphones to capture your voice in full audio bandwidth, kept separate from the caller. The digital hybrid couples audio through the handset cord without the crosstalk of analog hybrids. The DSP continuously monitors the transmit and receive signals. Its proprietary dual-convergence echo canceller typically reaches more than 50 dB of separation, with no setup and no noise burst sent down the line. A handset selector switch covers electret, carbon, and dynamic handsets.

The built-in 16-bit USB audio codec records in stereo at up to 48 kHz, with the host on the left channel in full bandwidth and the caller on the right. It also plays recordings from the computer into the call. The balanced XLR output carries only the caller’s voice for a mixer or PA system. The rear stereo output keeps both voices on separate channels.

Handset and Online buttons choose between the handset and the Universal Host connections. A separate switch picks the caller or the USB codec for the 3.5 mm headphone jack. Send and caller volume controls set the levels, each with its own LED. In a conference room, the Universal Host connects a PA system to the IP or PBX phone system, and the echo canceller prevents feedback in full-duplex conversations.

Features

• Works with most IP and PBX telephones through the handset cord
• 16-bit DSP with a proprietary dual-convergence echo canceller
• 16-bit USB audio codec with stereo recording up to 48 kHz
• XLR send input with mic/line switch
• XLR caller output and 3.5 mm stereo output
• 3.5 mm mono line input
• 3.5 mm headphone jack with source selector
• Handset selector switch (electret, carbon, and dynamic)
• Send and caller LEDs with volume controls
• Made in America