Window Intercom Amplifier - K009-IP Version (No Power Supply)

Our amplifier provides full open duplex communication and is compatible with all of our speech transfer products.

Features

• Energy-saving “green” standby mode is automatically used, achieving a power saving of up to 80%
• Constant-current hearing loop drive (with engineer adjustable hearing loop drive level)
• Isolated audio line input / output allows additional ohmically isolated line level audio input or output to recording system (bespoke, not available together)
• LED column indicator aids adjustments and indicates power and status
• Continuous self-testing means that no specialised equipment is required to confirm functionality
• DC Power: 2.1mm DC jack
• Power and status indication: Green/red LED column

Specifications

• Dimensions:
  Height - 116mm (4.57”)
  Width - 115mm (4.53”)
  Depth - 40mm (1.57”)
• Weight: 100g (0.22lbs)
• Construction: ABS Plastic
• Finish Options: Matt Black Fine Texture

• Supply Voltage: 12-14 VDC
• Quiescent Current: 100mA typical 
• Operating Current: 2A typical on speech peaks
• Power Switch: Push on - push off (tact switch under membrane)
• Microphones: Electret, supply 5V via 2.2KΩ load resistor
• Speaker Output Power:
  RMS: 2.5W / 8Ω, 4.4W / 4Ω
• Loop Drive Compliance: Constant current, bounded by 4V RMS & 3A RMS
• Total Harmonic Distortion: <5% (loop and speakers)