The Tech Works IC-52B is the most versatile Audio Intercom ever built; yet it is also the easiest to integrate into your design. Configuration Templates support every common application.
The audio quality of the IC-52B is superb. Noise and distortion are very low. Selectable equalization optimizes voice communications. The Automatic Level Control assures optimum performance. There are separate controls for Audio Level, and Reach. Once set, the Audio Level remains constant over wide dynamic input range. The independent Reach Control allows for optimized accommodation of the input signal level. The user may wander throughput the room, and still be heard at a nearly constant level without any operator adjustments!
Hands-Free operation is easily achieved with the IC-52B. The selectable Voice Operation (VOX) operates flawlessly. Electronic switching takes less than 3mS. Setup indicators make adjustments easy. If activated, the Auto-Take feature automatically activates the intercom and cycles the incoming call sequence (Call Tone, Privacy Alert Tone).
The IC-52B incorporates two selectable Notch-Filters to reduce acoustic feedback. One filter has an optimized frequency range to compensate for poor room acoustics. The other has a higher frequency range to reduce microphone to wall/glass resonance.
The logic interface has a plethora of Inputs and Outputs. However standard functions require few wires. The Indicators are comprehensive, yet a simple. The interface is fully configurable, with jumpers, however common functions are preset. Audio controls are on the IC-52B front panel.
Modular Construction makes the IC-52B ideal for integrated designs. The unit is small; mounting is flexible, and easy. Power is from a Universal Plug-in D.C power adapter. All I/O is through Euro-Style connectorized barrier strips.
The IC-52B has major improvements, over its predecessor:
Universal Microphone/Line Inputs
Phantom Power now 22 Volts Current Limited (used to be 10 Volts)
Gain Structure change; Rotary Microphone Gain Control, Trim-Pot Speaker Level
25 Volt, 10 Watt Speaker Outputs
Line Outputs, inbuilt, no Option PCB required
PA-BUSS Output Connector, Easy Connectivity to other Tech Works Products
Privacy Tone removed
Dual Channel Universal Audio Intercom Amplifier
Inputs: R.F. and static electricity protected
Outputs: short circuit protected
Frequency Response: 250 Hz to 14KHz
5-Watts RMS Sine Wave output into 45 Ohms
(Balanced), Both channels full power.
Side-tone selection for Headset Operation
Distortion at full rated output < 1% T.H.D
1000 Ohms Balanced or 500 Ohms Unbalanced
-76dBm minimum input for full rated output
Selectable Equalization – 3 settings optimized for voice communication
Selectable Phantom Power (10 Volts)
Color: Light Gray metal enclosure
Power: 24VDC, 1A – Power Supply Not Included
Weight: 3 lbs.
Dimensions: 8.5” W X 6” D X 1.75” H