null Skip to main content
RDL ST-ACR1 Line-Level Audio Controlled Relay
RDL ST-ACR1 Line-Level Audio Controlled Relay

RDL ST-ACR1 Line-Level Audio Controlled Relay

(No reviews yet)
SoundPro Item: 77458
  • Videos

  • RDL ST-ACR1 Line-Level Audio Controlled Relay
MSRP: $189.25
Add to Wish List

Account manager
Contact an Account Manager for your personalized price

The RDL ST-ACR1 Line-Level Audio Controlled Relay is an Audio Controlled Relay in the STICK-ON® series. These products are designed for quick, convenient installation, and reliable operation in a variety of control applications. The ST-ACR1 is designed to switch on line level sources.

Two multiturn trimmers are provided. The SENS potentiometer adjusts the audio input sensitivity. A threshold LED facilitates accurate adjustment. The module can be set to trigger on signals between -30 dBu and 0 dBu. The DELAY control sets the time required for the relay to release when the audio drops below the threshold.

The delay adjustment range for the ST-ACR1 is from 0.5 seconds to 5 seconds.

RDL ST-ACR1 Features

  • Switching Controlled by Audio Signal
  • Sensing of Line-Level Signal
  • Silence Sensing
  • DPDT Switching Contacts
  • Open-Collector SLAVE Output
  • ST-ACR1 Line-Level Audio Controlled Relay1
  • Audio Input10 kΩ balanced bridging
  • Input Connections
    • May be connected balanced or unbalanced
    • Control Output: Open-collector @ 25 mA suitable to drive indicators or slave LCR relay
  • IndicatorsAudio threshold LED (for setting sensitivity)
  • Retrigger Delay250 ms
  • ContactsDouble-pole-double-throw
  • Max. Switching Power60 W, 125 VA
  • Max. Switching Voltage220 Vdc, 250 Vac
  • Max. Switching Current2 A
  • Activation Response Time25 ms
  • Input Sensitivity-30 dBu to 0 dBu (adjustable)
  • Relay Release Delay0.5 sec. to 5.0 sec. nominal (adjustable)
  • Ambient Operating Environment0° C to 55° C
  • Power RequirementGROUND-REFERENCED, 24 Vdc @ 50 mA* (*Assumes 20 mA max load at SLAVE output)
  • DimensionsHeight: 0.7 in. (1.7 cm), Width: 3 in. (7.6 cm), Depth: 1.6 in. (3.9 cm)
  • Package TypeCardboard Box
  • Package Dimensions2x2x4"
  • Shipping Weight0.2 lbs
  • WEEE weight0.15 lbs

In The Box

Videos Hide Videos Show Videos

Customer Reviews