The ST-ACR2 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-ACR2 is designed to switch on line level sources.
Two multiturn trimmers are provided. The SENS potentiometer adjusts the audio input sensitivity. A thresholdLED 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-ACR2 is from 5 seconds to 50 seconds.
Switching Controlled by Audio Signal
Sensing of Line-Level Signal
DPDT Switching Contacts
Open-Collector SLAVE Output
Audio Input: 10 kΩ balancedbridging
Input Connections: May be connected balanced or unbalanced
Control OutputOpen-collector @ 25 mA suitable to drive indicators or slave LCR relay
Radio Design Labs ST-ACR2 Line-Level Audio Controlled Relay - 5 to 50 s Delay
Connect with Performance Audio
Why Choose Performance Audio?
35+ Years in the Business
Performance Audio isn't new to Pro Audio & Video. We have been servicing the needs of professionals for nearly 40 years! We have the expertise to help you get the job done right. The first time.
Real World Convenience
Performance Audio has built lasting relationships with the brands you love! We have decades of experience working with our suppliers. We are equipped to get you what you need, when you need it. When you need it.
Staff with Know-How
Performance Audio has long believed that experience and knowledge are vital to building relationships with our customers. We focus on getting, and keeping, a staff who know and love the Pro Audio & Video world. People like you.
Prices That Don't Suck
Performance Audio is one of the largest suppliers of professional audio & video gear in the Mountain West. We have one of the largest inventories in the industry. That means we can save you money! The right price.
All brand, company or product names contained may be trademarks or registered trademarks of their respective owners. Prices, specifications, and images are subject to change without notice. Not responsible for typographical or illustrative errors. All prices listed are in US dollars and do not include shipping and/or sales tax, when applicable.