Rolls PA253 Stereo Power AmplifierThe PA253. At every design stage we focused on one thing, sound quality. The chassis is made in Salt Lake City, UT. The steel sheets are cut, bent, formed and finished all by US labor. After that process the steel is powder coated to a high gloss red done by US labor. We silk screen the chassis and assemble the PCBs at our Salt Lake City factory. We flow solder the PCBs, send them to post flow assembly where we add the fragile components soldering