The TPA3118 class D amplifier IC is a leap in terms of audio quality.<br><br> Our board is a high quality implementation of the stock design.<br><br> - Using TPA3118 (better grounding of main IC)<br> - Anti-Pop circuit<br> - Bootstrap snubber mod<br> - Brand name components as per picture<br> - Radio avoidance switch (to reduce interference)<br><br> Note that PCB comes in 2 flavors:<br><br> 1. Volt is a shield and beneath it has connector that will plug into our DACs (Piano 1.1 and Piano 2.1). It has no RCA inputs. (Capacitance Multiplier can be added as a standalone board).<br><br> 2. Volt+ is a standalone amplifier with RCA IN (stereo). In addition to everything that the Volt has, we have added a circuit in the power supply that will reject spikes and noise to about 60db. The name of the circuit is "Capacitance Multiplier". Please note that Class D amplifier needs a quiet PSU.<br><br> Volt+ can be used with our DACs through the RCA input, as a standalone board.<br><br> Unlike our competitors that blindly copy the THD+N and SNR from datasheet, the files here show the real and tested characteristics of our Volt+ at different W of output power.<br><br> Note that in most cases we beat the THD+N and SNR from TI designed, evaluation board.