Radio Design Lab, RDL, Circuit Modules

The RU-VCA2 or RU-VCA2D make an ideal choice for mono or stereo installations where either local and/or remote audio level control is desired. Single or multiple control points are possible using optional RDL level controllers.Features: ...

Audio Isolation Transformer with Suppression.Features: Studio Quality Bifilar Audio Transformer Transient and RF Suppression Terminal Block Transformer Connections Galvanic Isolation 1:1 Transformer Coupling Transformer to Drive ...

The ST-LCR2 Logic Controlled Relay is part of the group of products in the STICK-ON series by Radio Design Labs. These products are designed for quick, convenient installation, and reliable operation with a variety of control input ...

The ST-LCR1H provides dry-switching contacts for high power switching, an LED indicator showing relay activation, and input connections. Switching contacts are suited to switching many 8 O, 70.7 V or 100 V speaker lines.The relay closes ...

The RU-SM16 is the ideal choice in most applications where audio-level metering needs to be designed into a system, or added to existing equipment. All connections are made using full-size barrier block terminals on the rear panel.The ...

The ST-TC1 is intended to be connected to an on-site telephone system switching unit KSU. It is NOT intended to be connected directly to a telephone CO line. Connections from the ST-TC1 go into the telephone switching unit as if the ST-TC1 ...

The ST-VOX1 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. The ...

Repack/Box OpenThe ST-SX4 is a remote-controllable unbalanced audio source selector 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 ...

Radio Design Labs' FP-ECC1 is a control unit designed to automatically turn an A/V system on and off for maximum energy savings.  Multiple sensing inputs and control outputs are provided in standard formats affording optimum ...

Radio Design Labs' TX-TPR6A is a single-pair audio receiving module compatible with RDL Format-A twisted pair products.  A front-panel switch set during installation determines which of the three FORMAT-A pairs feeds the module ...

Radio Design Labs' EZ-AFC2 is a stereo bi-directional audio format converter with level controls.  Conversion is provided between balanced rear-panel XLR jacks and unbalanced front-panel RCA jacks.  LED VU metering is provided ...

Radio Design Labs' TX-TPS1A is a single-pair audio sending module compatible with RDL Format-A twisted pair products.  One line-level source may be connected to the module using either the -10 dBV unbalanced RCA phono jack or the ...

The ST-LCR3 is ideally suited to applications where momentary pulses are needed from a single control signal. The module provides a momentary pulse when a logic signal at its input first becomes active. A separate momentary pulse is ...

The SR-4 is a universal module chassis that can mount to a backboard, wall or nearly any other support. It provides mounting for 4 STICK-ON power amplifiers or 7 standard STICK-ON modules. TX ™ modules may also be mounted. There is ...

The RCX can control up to 5 rooms per controller, perfect for houses of worship, offices, or where multi-room configuration mixer/rou-ters are needed. Dual processors supervise room combinations and levels in a highly flexible, yet compact ...

The FP-SPR1 is the ideal product for applications requiring either conversion between SPDIF connector types or recovery of low level SPDIF signals. Power connections are made using either the full-size barrier block terminals or a dc power ...

The FP-BUC2 is a great choice for connectorized conversion from balanced to unbalanced audio. This module features two identical active (transformerless) channels. Gold contact XLR jacks are utilized for the balanced input channels. Each ...

The ST-GSP1 is part of a group of products in the STICK-ON series from Radio Design Labs. The durable bottom adhesive permits quick, permanent mounting nearly anywhere or it may be used with RDL's racking accessories. The ST-GSP1 offers ...

The ST-UBA2 is used in any application requiring conversion from unbalanced consumer format signals to professional +4 dBu. It may be used to balance audio from CD players, cassette decks, computer sound cards, televisions, and a wide ...

The RU-VCA2 is the ideal choice in many installations where either local and/or remote audio level control is desired. Single or multiple remote control locations are possible using optional RDL RLC2 Remote Level Controls; single location ...