Folks, I might be having a problem with my Costco-killer-deal 1522K and I could use a hand from some fellow owners.
I paired this unit with some tower speakers from HTD. In the last 2 months, I have had 2 midrange drivers in my towers go bad. The first driver failed after a few weeks of use, producing a sizzling sound when reproducing mid-high frequency sounds, like strings or chimes. It was absolutely the driver at fault--I moved it from one tower to the other, and the sound fault followed it.
HTD sent me a replacement, and after 3-4 weeks of use it failed in the same way. Now THAT is weird! HTD tech support has been very easy to work with, but this is a puzzling case of lightning striking twice.
One thing that can explain damaged drivers is DC voltage on the outputs. It is pretty darn unlikely that a nice new Pioneer has a speaker-killing fault like that, but I am going to check for DC on my outputs tonight. I'd like to ask for a few of you to do the same, so I have some points of comparison. If you have a multimeter, and if your speaker terminals are easy to access, would you consider testing at least your L/R channels?
I do not know if the values in the guide above are good--like I said, I'd just like to see if I am in the same ballpark with some other owners.
I can't imagine that anything in my listening habits is responsible for killing TWO midrange drivers... I never even hit reference level, and even if I did, the Pioneer plus HTD gear should be able to handle it. Abuse via clipping (or even a DC fault) seems even more unlikely when you consider that one of the midranges that came with the towers is fine, and I have swapped drivers between cabinets, and cabinets between L/R.
Anyway--if anyone wanted to post or PM me some DC offset readings for your 1522K, I would appreciate it. I don't expect to find any problems, but I want to be thorough.
Many thanks in advance!