I've been unfortunate in that 3 different amplifiers have met an early demise in the course of a year. One was due to a faulty ground wire (my fault for not catching it sooner) and other 2, seemingly dropped a channel. One was a Class T PA 2100, other was a Sony ES 5046. Both were running dedicated tweeters on two channels, at VERY low gain, full-range as the tweeters are capped with 10uf 50v caps at the tweeter, and I left Pioneer HU at -6 @ 10khz and +1 at the 3khz range, as that produced the cleanest tweeter output and it helped picked up where the doors left off.
Since it just dawned on me both failures occurred on the same tweeter channel, I'm wondering if the amplifiers might of had an issue with not running traditional speakers? I know piezo won't register an ohm reading, and don't seem to affect other speaker ohm readings i.e. 2-way 8 ohm woofer + piezo tweeter will register as 8 ohm. Only thing possibly odd with them is I series wired them as I wasn't sure if the amplifier would treat them like a 2ohm load or not, which I try and avoid.
I have a handful of silver Crossfire VR402, and a VR302, and both of those have powered the same tweeters w/o issues (although one of the VR402 was being worked to death in tri-mode and was sharing doors @ 2ohm + tweeters until another power cable could be run), as did a cheap, old, 4 channel Crunch amp I modified with better film caps and some audio path electrolytics to try and subdue the disgusting brightness (it was a $15 back-up amp before the Crossfire) it had and horrid separation of highs it exhibited- to some success, and neither of them faltered.
Sorry for long essay post, but rather give enough, than a few words. Have any of you run into amplifiers dropping channels running dedicated piezo-style tweeters? Does it just sound like bad luck on my end?
Since it just dawned on me both failures occurred on the same tweeter channel, I'm wondering if the amplifiers might of had an issue with not running traditional speakers? I know piezo won't register an ohm reading, and don't seem to affect other speaker ohm readings i.e. 2-way 8 ohm woofer + piezo tweeter will register as 8 ohm. Only thing possibly odd with them is I series wired them as I wasn't sure if the amplifier would treat them like a 2ohm load or not, which I try and avoid.
I have a handful of silver Crossfire VR402, and a VR302, and both of those have powered the same tweeters w/o issues (although one of the VR402 was being worked to death in tri-mode and was sharing doors @ 2ohm + tweeters until another power cable could be run), as did a cheap, old, 4 channel Crunch amp I modified with better film caps and some audio path electrolytics to try and subdue the disgusting brightness (it was a $15 back-up amp before the Crossfire) it had and horrid separation of highs it exhibited- to some success, and neither of them faltered.
Sorry for long essay post, but rather give enough, than a few words. Have any of you run into amplifiers dropping channels running dedicated piezo-style tweeters? Does it just sound like bad luck on my end?