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Window Intercom Amplifier

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Contacta STS-A31H Window Intercom Amplifier

Item #: STS-A31H by Contacta

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$338.00

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Features
  • Energy-Saving Mode : Automatically converts to green standby mode, which saves up to 80% of power.
  • High-Clarity Speech with DSP : Advanced Digital Signal Processing (DSP) transfers clear sounds between speakers and hearing loops.
  • Two-Way Speech Transfer : Enables smooth duplex audio transmission and clear voice transfer at counters.
  • Adjustable Loop Drive : A constant current loop drive with customizable options for the best sound.
  • Audio Input/Output for Recording : The separate audio line simplifies connection to external recording systems.
  • LED Power and Status Indicator : The green/red LED column displays clear power and status indicator notifications.
  • Durable and stylish Finish : Made of ABS plastic with a matte black texture for a sleek look.
  • Easy Power Switch : Includes a push-on/push-off switch for easy use at banks, post offices, and airports.
  • Reliable Power Supply : Uses a 2.1mm DC jack for continuous power supply.

Height

1.58"

Finish

Housing:ABS Plastic,Texture:Matt Black

Depth

4.50"

Applications

Banks ,Post offices,Theatres,Information Centres,Airports

Microphones

Electret, supply 5V via 2.2 Ohm load resistor

Weight

0.32 lbs

Width

4.58"

Operating Current

2A typical on speech peaks

Supply Voltage

12 to 14 VDC

Quiescent Current

100mA typical

Speaker Output Power

RMS: 2.5W / 8 Ohm , 4.4W / 4 Ohm

Power Switch

Push On and Push Off

Loop Drive Compliance

Constant current, bounded by 4V RMS and 3A RMS

Total Harmonic Distortion

Less than 5% (loop and speakers)

Product Overview
The Contacta Window Intercom Amplifier is a hearing loop and audio amplifier made for clear communication at windows in crowded places like banks, post offices, theaters, and airports. It uses Digital Signal Processing (DSP) to ensure clear, two-way speech transfer, so voices are easy to hear on both sides. The energy-saving mode cuts power use by up to 80%, making it efficient. It also has an audio input/output for recording. Built with a matte black ABS plastic finish and a simple push-on/push-off switch, this amplifier is a reliable choice for smooth communication. It requires supply voltage to 12-14 VDC.