I would like to thank you (Kano) for the specs. of the PD-9s. I'm not sure if you are still around or not but you posted spec. of the PD-9s a few years ago but I have just found them. I have been wondering for a long time now what the Specs. are on my speakers. I bought them back in '86 and have been Wondering sicnce then what they are. Even at Cerwin-Vega, they have never heard of PD-9s. Go figure. Oh well, thanks and I hope that you get this.