Biquad HELLO NANO V2 Telephone Hybrid

Biquad HELLO NANO V2 is a compact telephone hybrid interface designed for bringing listeners and guests on air from a standard POTS line. It is built for external transmissions, small studios and OB setups that need a simple, reliable way to connect one phone caller into the programme with broadcast-quality audio.

The Biquad HELLO NANO V2 hybrid uses a fully electronic active circuit similar to Biquad’s ALO series, providing the 2-wire to 4-wire transformation needed to separate send and return audio paths. Balanced XLR inputs and outputs give good shielding and clean sound, and the ECO-style echo cancellation provides strong isolation between the studio feed and the caller audio to reduce feedback and hollow, metallic artefacts. HELLO NANO V2 works with conventional telephone lines or PBX extensions and is powered from the line itself, so there is no need for an external mains supply in the field.

Front-panel controls and indicators make call handling straightforward for operators: a call button to answer and drop the call, status LED, and level controls for audio sent to the line and returned to the console. The rugged, small enclosure is easy to mount or place near the mixer, and RFI and surge protection on the telephone input help keep the interface stable in real-world RF environments.

• Portable 1-line telephone hybrid for POTS and PBX call-ins
• Fully electronic active hybrid circuit with echo cancellation
• Balanced XLR audio inputs and outputs for clean studio sound
• Powered directly from the telephone line; no mains required
• Front-panel call control and send/return level adjustments
• RFI filtering and line surge protection for field and studio use

Biquad HELLO NANO V2 pairs naturally with on-air consoles such as the
Solidyne MiniMixer 7-channel console and the
Solidyne UNIDEX UX24 IP console, creating a practical call-in chain where telephone audio is routed, levelled and switched to air with professional control.