For 2 channel guys, I can't still be the only one, subs are unwanted distractions. Unfortunately most full range speakers have such low impedence in the bass that they feel thin. Previous speakers would have me using 200wpc amps on the lower taps and 100 wpc amps on the upper taps to get some tonal balance. The persona's the 7f I own output excellent full range sound from a single source. subs need not apply.