Hi jevuichard; around 1983, my friend wanted some speakers so we went into a store. We A/B/C/D/ a bunch of floorstanding stuff there, but the winners PERIOD were the HMP-100s. How we got those things back to his place, I cannot remember. They are particular to the type of equipment run on them but these speakers will sing and dance any kind of music with audio amplifiers etc, that seem to be the most compliant to their sound. They played wonderfully on a Pioneer SA-7700 int. amp.@60 watts per channel. They surprisngly worked well with a 1980s low power Scott receiver. My friend still has them, but uses them in a secondary house on his property. Note that the woofers have paper surrounds which seem to last forever over many of the rubber surround types that wilt away. IMHO one of the best floorstanding speakers that were ever made for the money. Heavy, they are, and heavy they play.............