PS Audio PMG Signature S200 Stereo Power Amplifier

PS Audio PMG Signature S200 Stereo Power Amplifier

Every journey has a first step. In the PMG Signature Series, that step is the S200 — and it is a more serious one than its place in the lineup suggests.

It would have been easy to build an entry-level amplifier and lend it the Signature name. We didn't. The S200 is the complete PMG Signature topology — Darren Myers's low-feedback design and the same state-of-the-art active power supply architecture found throughout the line — scaled, not stripped, for the rooms and systems where the M400's reserves would never be tapped.

One hundred watts per channel into 8 ohms, doubling cleanly into 4. Ten watts of pure Class A bias per channel hold both channels in their most linear region through roughly twenty percent of typical listening. The same bandwidth beyond 500 kHz, the same 200-volt-per-microsecond slew rate, the same flawless square wave, the same flat distortion as its larger siblings.

For the listener building a reference system step by step, this is where it begins. For many, it will be everything they ever need. Designed by Darren Myers. Engineered by Bob Stadtherr. Hand-built in Boulder, Colorado.