Arcam PA410

The Arcam PA410 provides 50 watts per channel, with four inputs and connections for four speakers. It's a versatile amp, too — you can use it to bi-wire or bi-amp stereo speakers, add surround channels to a home theater system, or power music zones in a multi-room audio system. It features a high-fidelity, low-distortion Class AB amplifier circuit with a beefy toroidal transformer that provides plenty of high-current output. The amp offers four unbalanced RCA preamp inputs, with corresponding outputs. There are also binding posts for connecting up to four speakers. The back panel includes a 12-volt trigger input and output for automatically turning the amp and other components on and off. An RS-232 port lets you integrate third-party automation systems, and a USB Type-A port is provided for firmware updates.