The RDL HR-DSX4 is the ideal choice in installations requiring high quality source selection between digital audio signals, offering solid-state switching to select one of four inputs. Each input may...

The ST-VOX1 is an Audio Controlled Relay in the STICK-ON® series. When used in intercom or talkback applications, the ST-VOX1 may be triggered directly from an unbalanced microphone. In many such...

The STA-2A is a dual-channel, line-level audio preamplifier. Each channel is identical. The audio inputs are bridged at 20 kΩ and accept either an unbalanced or a balanced audio signal. Gain is...

The ST-PA2 features a single, unbalanced audio input, a gain control, and two outputs. The first output is designed to deliver a clean 2 watts RMS into an 8 Ω speaker. The second output is intended...

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...

The STP-1 is a pair of convenient attenuator pads that can be located at the precise location that attenuation is needed. The low-cost STP-1 eliminates the costly labor of figuring and assembling...

The FP-UBC2 is the ideal choice for connectorized conversion from unbalanced to balanced audio. This module features two identical channels. Gold-plated phono jacks are utilized for each unbalanced...

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...