To achieve performance and value together, you have to begin with performance. In PSB's full-range speakers, the objective is never less than doing music justice: that is, building in enough high-frequency performance to supply full musical detail, enough low-frequency response to give the full "weight" of music, and a tonal balance from top to bottom that not only makes musical instruments sound like themselves but in the right relationship to each other, with no exaggerated prominence or ear-fatiguing coloration. As they go up the line to their most expensive speakers, the gains over that bottom-line requirement are in power capabilities — there's quite a difference between reproducing either rock or symphonic music at "reasonable" levels in "average-sized" rooms and going more and more full tilt for the loudest unstrained performance in a big room — and in the subtleties that add up to even more musical detail and more precise spatial imaging.