The BP.15 continues Pro Intercom's tradition of superior performance, now in a tiny package, 1/7th (0.15) the size of Pro Intercom's BP-1 (by volume). All the functions of a full-sized beltpack are retained.
The signal button and the mic. On/Off button are shaped differently for easy recognition by touch, in the dark. Two LEDs are mounted, one to indicate signaling (red, bright) and one (green, low output) to indicate that the microphone is On. The BP.15 is available with an optional vibrator in addition to the standard signal LED. The volume control is a thumbwheel, again reducing the like lihood of accidental damage. There are two recessed controls. One controls 'sidetone' - the sound of your own voice which you hear in your own earspeaker. The second recessed control adjusts the sensitivity of the microphone input circuit to allow for different outputs of dynamic and electret microphones. The microphone input circuit includes a limiter which keeps the microphone input from being overloaded, causing distortion. The amplifier circuit delivers a crisp, clear signal to the earspeakers for excellent speech recognition, but with a wide enough frequency response to minimize the possibility of ear fatigue during a long performance.
Miniaturization has its costs. The size will not accommodate the conventional three XLR jacks on the bottom (rear) panel. The 4-pin head set jack had to be retained but Pro Intercom substituted a miniature XLR-type jack for the other two. The BP.15 comes with a cable constructed from a length of our steel reinforced cable with the miniature plug on one end and a 3-pin female XLR on the other. A second cable is available with the miniature plug on one end feeding into a Y with a male XLR on one leg and a female on the other for looping onward to the next station in the system.
The cabinet is a strong, aluminum extrusion with internal ribbing which not only adds to its strength but provides for support of the printed circuitboard along the full length of both sides. The durable end bezels deflect damage. The same (almost indestructible) beltclip used on the BP-1 is used on the BP.15. Realizing that beltpacks are bound to live a rough life, Production Intercom takes every possible opportunity to secure components and 'ruggedize' the complete product.
The BP.15 is plug-in compatible with Clear-Com® and other popular headset intercom systems.
Power requirement: 18~30VDC, 10 mA quiescent; 30mA max. (with both lamp lit)
Headphone output: 8~4KΩ acceptable, 200Ω ideal
Microphone input: 200 ~ 600Ω Dynamic; 1.0~1.8kΩ Electret
Audio bridging impedance: 200Ω unbalanced
Case Only Size: 3.4" x 2.1" x 0.9"
Overall Size: 3.8" x 2.3" x 1.4"
Weight: 4.8 oz. (136g)