Wolfmother
Member
I just joind audiokarma yesterday and I am wondering what the difference between the HPM 150's and the HPM 1500's. Is it only that the 150 is 125W and the 1500 is 250W? I currently own a pair of HPM 100's. Thanks a lot!
But the 150's I have put the HPM 100's to shame, and the 100's are phenominal speakers.
These 1500's are a significant improvement over the 100's. The stacked plates are a more complete realization of the HPM driver concept, circular distribution instead of the small barrel. Of course they cost more and are harder to find...
how do the 1100's compare?
ADS L810
Dalhquist DQ-10
HPM-100
HPM-1100
Yamaha NS-1000M
Definitely a connection there, but actually designed by Bart Locanthi, ex-Engineer for JBL who quit them, then went to work for Pioneer in mid-70s.The Hpm 150 Were Designed By Lansing And Thet Are Wonderfull ..
Your observation about HPM's being a mismatch for anything except Pioneer SX receivers is spot on. I have always suspected the SX receivers were tuned for the HPM's and not the other way around....I do not think tuning an amp for a speaker with non-linear frequency response is the right way to go....
Huh??? In my 4 years ('77-81) as an employee and technician for Pioneer, I never observed anything other than a flat response across the audio bandwidth and beyond to the limits, in any amplifier or receiver, using the Sound Technology audio analyzer and BPI load box on my bench. Reviewers would have been all over Pioneer for deviating from a flat response. BTW my 2 Spec-4s drive 4 HPM-150s quite well!