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The MultiPhones II system by Henry Engineering delivers a dependable, multi-user headphone monitoring and zoned communication setup for broadcast studios, host/guest interviews, and production control rooms. Featuring a centralized master unit and individual headphone distribution pods, the system allows hosts and guests to control their own listening levels via dedicated, built-in amplifiers, maintaining full audio quality across every station regardless of how many listeners are connected.
Designed to handle up to 12 guest pods across three separate output zones, the master unit routes both program audio and dedicated talkback feeds over standard CAT5 cabling. Front-panel master trimmers allow engineers to set global output ceilings, while three dedicated talkback buttons let producers instantly override program audio to address specific zones or the entire studio. Built with an internal AC power supply and versatile mounting choices for racks, walls, or consoles, the MultiPhones II easily adapts to any studio layout.
| Specification | Detail |
|---|---|
| Program Input | -15 to +0 dBm, Stereo (10k Ohms Balanced / 5k Ohms Unbalanced) |
| Talkback Input | Mono, Switchable (Balanced Mic or Line Level) |
| Frequency Response | 5 Hz – 20 kHz (±0.25 dB) |
| Distortion (THD) | 0.005% Typical |
| Noise Level | -80 dBm |
| Headphone Outputs | Optimized for 24 to 600 Ohm Headphones |
| Talkback Control | Contact Closure or +12 VDC |
| Power Requirements | 115/230 VAC, 50-60 Hz (8W Consumption) |
| Dimensions (WxDxH) | 5.75 x 5.5 x 1.6" / 146 x 140 x 41 mm |
| Weight | 3.0 lb / 1.4 kg |
| Packaging Info | |
| Package Weight | 2.45 lb |
| Box Dimensions (LxWxH) | 8.8 x 6.4 x 2.0" |
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