Radio Design Labs

The FP-PA20 features a balanced line level input that may be connected unbalanced. A front panel gain control is designed to be adjusted either man...

The RU-PA40D is the ideal choice in many applications where a high quality, high-efficiency utility amplifier is needed to drive a pair of 4 Ω ...

The EZ-PH1 is a stereo phono preamplifier with front-panel volume trimmers and audio level metering. Stereo RCA jacks and a grounding screw are pro...