We pick the speakers that we use based on sound quality and preformance. In fact since 1999, we have used speakers from POLK and Cerwin Vega for our systems and have done limited runs of Sony, Blaupunkt, Pioneer, JVC, Kenwood, and Infinity, JBL, Alpine, Rockford Fosgate.
It goes like this, every year we test the new models of speakers against each other. Over the coarse of several days, each speaker brand faces a blind test comparision using several music types at top volume. They are tested for clarity and range. Polk Audio speakers have continued to be the top pick for best quality, by blind sound testing and lab test.
2018 Speaker Test agreed response - was conducted using our Cerwin Vega and Clarion Amplifiers. The Polk Audio speakers came out on top, the range and clarity was excellent, with no distortion and proper bass response. Our systems as of 4-14-2018 currently feature the Polk Audio speakers and they sound great.