Here is a photo of my Studio Series Two Pi's, which I have been using for a couple of months with my Afterglow SE2A3 2.4W/channel power amp. The Two Pi's sound great! The amp can drive them much louder than I care to listen to. Bass is deep, realistic and not boomy. String bass sounds great, and electric bass started to sound tight, once I put upgraded coupling caps in my Foreplay preamp. (The Foreplay and Afterglow are the two nickel-plated boxes with tube cages in the upper-right-hand corner.)As far as I'm concerned, Studio Series Two Pi's are the best bargain around for high-efficiency speakers.
Thanks, Wayne!
-uW