RDL HD-PA35U Single-Input Power Amplifier

The RDL HD-PA35U is a single-input power amplifier that drives 35 watts into 4 or 8 ohm loudspeakers from one line-level source. An unbalanced summing input on RCA jacks feeds a single-zone amplifier with a front-panel volume control plus bass and treble tone shaping, and the master level is VCA controlled so a wall remote can trim volume without carrying audio to the control point. A rear-panel switch sets the output for 4 or 8 ohm speakers.

An analog-filtered Class D output stage pairs with an onboard analog compressor and limiter for cleaner peak control than digitally limited amplifiers, and standby mains draw stays below 1 watt. The amplifier ships with its 100 to 240 VAC power supply and drives its outputs through a detachable terminal block.