@cindcyhound....I have the PL Dialogue HP mono’s (EL34), PL Dialogue Premium pre-amp with Wilson Sophia II speakers. The sound is outstanding IMO and I have no plans on upgrading. I listen to 70’s classic rock, bluegrass, jazz & blues. I think the speaker effeciency is around 87 Db’s. I listen to most of my music in mid to upper 80’s decibels which is around the 11 o’clock position on the volume knob. The PL’s replaced Cary V12 mono’s and SLP80 pre-amp and I much more enjoy the PL’s. Hope this helps you.
David
David