The ST-LCR2 provides double-pole, double-throw dry switching contacts and LED indicator for relay closure. The ST-LCR2 is used where momentary pulses must alternately toggle on/off switching contacts...

The STA-1M allows bridging any audio line, adjusting the gain, and driving a balanced or unbalanced line. The circuit design allows the input to accept either balanced or unbalanced signals, of...

Each of the ST-OSC2 products is a Dual Audio Oscillator. These products are designed for quick, convenient installation, and reliable operation in a variety of audio applications.The ST-OSC2 products...

The RU-MLD4 is a four channel audio distribution amplifier. The input and all four outputs may be connected through the front-panel XLR jacks or on the rear panel detachable terminal blocks. The...

The ST-LCR1 provides double-pole, double-throw dry switching contacts and LED indicator for relay closure. The ST-LCR1 provides momentary operation and is ideally suited where additional switching...

The ST-SX4 accepts up to four unbalanced audio sources. Any of these sources may be selected to feed the output, or all sources may be switched off. The output from the ST-SX4 is unbalanced. Control...

The STA-1 is a dual-channel line-level preamplifier with bridging inputs, adjustable gain or loss, and low-impedance outputs. Each of the two identical circuits is both an electronic line transformer...

Each of the ST-OSC2 products is a Dual Audio Oscillator. These products are designed for quick, convenient installation, and reliable operation in a variety of audio applications.The ST-OSC2 products...

Specially-made RDL rack rail adaptor (looks like a blank front panel with room for up to three Flat-Paks on the back side) for Flat-Pak series audio interfaces.

The RDL RU-MLA2T is a dual channel audio preamplifier with inputs and outputs that can be connected through the front-panel XLR jacks or on the rear panel detachable terminal blocks. Each input...

The ST-IC1 is the ideal choice where an intercom system is to be installed, or where an amplifier is needed to bring a mic level up to a 1 W speaker level with optional muting capability.The ST-IC1...

The ST-SSR1 was designed for absolute silent switching of audio signals. It supports two balanced line-level inputs and one balanced output. Each can be used unbalanced as well.The ST-SSR1 is perfect...