The $10 speakers don't sound too bad in the treble region. I think they are completely missing bass of any kind, but they don't seem to detract at present.

Do surrounds "need" to match? I have heard that is not as important as the front line since they often play different sounding notes anyway.

I did briefly try some bose 301s at surround (someone gave me when they moved) and they sounded better, but did not meet the WAF standards. (For once the wife was right but for the wrong reasons)

M22s, QS4s, M2 center, Hsu stf-1.