02-May-2019, 17:20
Just to give an update for those interested...
Raidho believe the blown tweeter was caused by some high frequency ringing/distortion. A raised impedance of the damaged tweeter is what suggests this.
My Townshend Isolda speaker cables have been serviced and they’re fine (because of the construction, a damaged/shorted cable can cause ringing).
The amp has gone off to Devialet and that came back with no problems reported.
The only other issue could be the source. I use Roon over Ethernet direct to Dev and a macmini connected via optical.
I’ve read reports online of macs causing high pitched ringing, though I don’t believe this could be transferred over optical. I sometimes play compressed video with compressed audio, but surely that cuts off the high frequencies.
So still stumped at present...
The reason for most blown tweeters is an under powered amp clipping, though I wouldn’t expect a d250 to clip at the volumes I play...
Sent from my iPhone using Tapatalk
Raidho believe the blown tweeter was caused by some high frequency ringing/distortion. A raised impedance of the damaged tweeter is what suggests this.
My Townshend Isolda speaker cables have been serviced and they’re fine (because of the construction, a damaged/shorted cable can cause ringing).
The amp has gone off to Devialet and that came back with no problems reported.
The only other issue could be the source. I use Roon over Ethernet direct to Dev and a macmini connected via optical.
I’ve read reports online of macs causing high pitched ringing, though I don’t believe this could be transferred over optical. I sometimes play compressed video with compressed audio, but surely that cuts off the high frequencies.
So still stumped at present...
The reason for most blown tweeters is an under powered amp clipping, though I wouldn’t expect a d250 to clip at the volumes I play...
Sent from my iPhone using Tapatalk
