- Joined
- Jan 14, 2011
- Messages
- 74,340
- Location
- Gillette, Wyo.
- Tagline
- Halfbiass...Electron Herder and Backass Woof
OK, now that we have you settled down, you didn't say what the DC offset was when the VOM probes were right....laying it low will help prevent an output failure, but not the latch up tendency. That's something that wasn't understood by most folks. THAT WAS INHERENT IN THE DESIGN, not the noise. As component values drifted over time on the driver board when turning the amp on after having the caps completely dis charged it could turn on certain components on the board in the wrong order resulting in 100 volts DC going to the speaks. It will only happen at power up, but there are plenty of other things on that board that can go and throw 1 to 100 volts DC to the speaks. Ther is no way an unprotected amp gets on the K's. 8 grand ain't worth it.... You spent some big money on your CV's and you'd be sick if they got toasted, if it was me Jase I wouldn't put it on the CV's......
There is a complete description of the latch up in the wopl archives..... Jase there is no way I would romp on a stock 700 on my K's....I do with the ones I just rebuilt because I've had a real world failure on a 700 going full tilt boogie when a 40 year old XPL-909 output went, luckily I had Don's board in. It fried the contacts in the relay but the K's were not hurt. So, when I get done with an amp and put em on the K's it's with the expectation that Joe and the rebild process cultivated by the build folks here have done everything to mitigate failures. Even with that I have destroyed amps in testing when trying different configurations for Joe and me. But with no DC protect it doesn't happen on the K's. A WOPL can be destroyed by simple overdriving IF YOU COULD KEEP IT COOL LONG ENOUGH and the speaks didn't go first. I have done it on the bench, a couple times on purpose, a couple times not. No amp is foolproof, but a WOPL is pretty damn close, that's why after a build I torture it for a week, root out those weak components that got by the QC folks......Cause there might be some folks out there who drive theirs harder, but I haven't met em yet...
There is a complete description of the latch up in the wopl archives..... Jase there is no way I would romp on a stock 700 on my K's....I do with the ones I just rebuilt because I've had a real world failure on a 700 going full tilt boogie when a 40 year old XPL-909 output went, luckily I had Don's board in. It fried the contacts in the relay but the K's were not hurt. So, when I get done with an amp and put em on the K's it's with the expectation that Joe and the rebild process cultivated by the build folks here have done everything to mitigate failures. Even with that I have destroyed amps in testing when trying different configurations for Joe and me. But with no DC protect it doesn't happen on the K's. A WOPL can be destroyed by simple overdriving IF YOU COULD KEEP IT COOL LONG ENOUGH and the speaks didn't go first. I have done it on the bench, a couple times on purpose, a couple times not. No amp is foolproof, but a WOPL is pretty damn close, that's why after a build I torture it for a week, root out those weak components that got by the QC folks......Cause there might be some folks out there who drive theirs harder, but I haven't met em yet...
. Just sayin'