RDL ST-ACR2 STICK-ON Line-Level Audio Controlled Relay/Silence Sensor

Product Price MSRP: $186.65
$139.99
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ST-ACR2
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Anywhere you need...

  • Control Switching from Audio Signal
  • Switching from Mic OR Line Signals
  • Silence Sensing
  • Precise Threshold Adjustment
  • DPDT Switching Contacts
  • Open-Collector SLAVE Output

APPLICATION: Each of the ST-ACR products is an Audio Controlled Relay in the group of STICK-ON series products by Radio Design Labs. These products are designed for quick, convenient installation, and reliable operation in a variety of control applications.

This module is designed to switch on LINE-LEVEL sources, and has a longer release delay time making it the optimum choice for most music applications. The ST-ACR2 is widely used as a Silence Sensor.

  • High-impedance bridging input connects across any audio line
  • Input may be connected to either balanced or unbalanced sources
  • Multiturn sensitivity adjustment permits precise threshold setting
  • Multiturn DELAY control adjusts relay release delay
  • Bandpass filtering yields triggering on characteristic audio spectrum
  • SLAVE open-collector terminal allows additional relays to be added for more contacts (Radio Design Labs' ST-LCR1 or ST-LCR2)
  • SLAVE terminal may be used with remote switch to manually override the control circuit and turn on the relay

NOTE: Power supply is required.

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