Headset Station, Tabletop, Single-Circuit, Sloped Metal Cabinet The Pro Intercom HS2T functions very much like a beltpack, but is housed in a sturdy metal cabinet which may placed on a desk or console, or hung vertically by its rear panel keyhole slots. Stick-on plastic feet are supplied for desktop use. Connection to a circuit is via an 3-pin (male) XLR on the top. The second (female) XLR may be used to loop onwards to the next station in the system. Front panel controls provide for turning the headset of handset microphone to be turned On or Off, adjusting the level heard in the headset or handset's earspeaker, signaling other stations or receiving a visual signal via the dual purpose call button, and adjusting the microphone sensitivity to accommodate either dynamic or electret microphones. Frequency response has been carefully shaped to optimize both intelligibility and long-term listening comfort. A mic limiter circuit reduces overload distortion. The high bridging impedance ensures that system and sidetone levels do not vary as other stations are switched in and out of the circuit. The signal light button also serves as the signal light. A recessed, screwdriver-adjust control is provided for varying the level of the user's voice to be heard in his own earphone (sidetone). The HS2T has 3-pin XLR connectors on the rear panel for connection of the station and daisy chaining on to the next station in the circuit. The component board of the HS2T is mounted to a thick metal mounting plate. Long-life switches and controls are used. The cabinet is constructed to withstand the rugged use associated with touring. Simplicity of construction affords the use of high quality components while maintaining a favorable cost/benefit ratio. The HS2 Series is compatible with Clear-Com and other lesser-known (unbalanced 200Ω) party-line headset intercom systems. Specifications: Power Requirements: 24 ~ 30 VDC, 10mA quiescent, 40mA max (with signal lamp lit). Headphone output: 8 ~ 4KΩ acceptable, 200~400Ω ideal Microphone input: 200 ~ 600Ω, dynamic Sidetone rejection: 50dB Audio bridging impedance: 200Ω unbalanced Size: 3.95 x 6.1 x 1.45 in. (100.33 x 154.94 x 36.83 mm) Weight: 8.5 oz.
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