Radio Design Lab

During power-up and power-down, the amplifier and preamplifier outputs are protected against clicks, pops and thumping by internal soft-start solid-state switches. A blue POWER LED illuminates when...

Radio Design Labs - RDL HD-MA35AX ,35 Watt Mixer Amplifier with Power Supply - Constant Voltage Output 25 V, 70 V or 100 VThe HD-MA35 is a three input audio mixer amplifier for systems demanding...

A blue POWER LED illuminates when the HD-MA35A is powered from its external 24 Vdc power supply (included). The power LED is dim when the mixer amplifier is in the standby mode, and is bright when...

A blue POWER LED illuminates when the HD-MA35 is powered from its external 24 Vdc power supply (included). The power LED is dim when the mixer amplifier is in the standby mode, and is bright when the...

Mounts 1 HD series product. Mixer amplifiers may be mounted forward for user control, or may be recessed securely behind a filler panel. This adapter fits 10.4" racks.

Mounts in front of an HD series product to allow viewing while preventing user adjustment or tampering. Lens is removable during setup.

Fills an unused half of rack adapter or mounts in front of an HD series product to prevent user adjustment or tampering.

Mounts to an HD series mixer / amplifier to prevent user access to the rear panel. The back-pack holds the power supply and provides a completely closed back for the installed amplifier.

Mounts to an HD series mixer / amplifier to prevent user adjustment or tampering. The power button and associated indicators remain accessible with the HD-ASC1 installed.

The TS-1D is intended to protect audio input and output circuits from the effects of transients induced on the audio lines.

The FP-VDA4 has two jacks in the bridging input stage. One jack is for the input signal, the other is a loop-through output of the source signal. If 75 Ω, termination of the input signal is...

The normal gain setting is indicated for the trimming potentiometer. This setting produces a +4 dBu balanced output for a −,10 dBV unbalanced input. The gain is adjustable −,5 dB to +10...