The Pioneer HPM-100s are some of the finest speakers I've had the privilege of listening to here...the equal, in my opinion, of the JBL L100s that I love so much. The capacitor upgrades have eliminated all trace of the high end harshness that I saw as a potential long term problem in my limited original time with them, and made me prefer JBL L36s over HPM-60s (which I had for a long time, and introduced me to the HPM series). Owners of those may want to investigate the same kind of upgrade.

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