codewritinfool

Wow. Great deal!

Me too

Did your wife notice the hack yet?

https://stlouis.craigslist.org/sop/6151628825.html $600.

You could say this about any investment. Nobody would be sitting on 72 million because the first time it spiked they would have sold it - for FAR less. Probably would have been happy to get 3X out of it.

If I were you I'd call Bob directly or drop him an email. I've communicated with him on multiple occasions and he is a good dude.

On a Fluke 7-300, "OL" is not zero ohms. It means "overload" which means >400 ohms. Touching the leads together would show you what zero ohms looks like. The tweeters are then likely open circuit, which is the opposite of zero ohms.

Depends on the load. If you really thought about essential loads, you could probably get by with a couple of outlets. Your transfer switch can then switch to an inlet for your portable generator. Something like this: Transfer switch

I am also interested in the crossovers should you split. Just across the river from you in E-town.

Yep, RIP. 71 is too young.

Why not get a proper transfer switch / essential load panel so that next time this happens you can fire up your generator without back-feeding dangers?

Yessir, this is correct. And when I changed the speaker connections l/r at the amplifier, it stayed with the right channel. I have some more honeydo stuff to get done today before I can retire out to my workshop and swap the actual crossovers.

I swapped left and right speaker wires and it stayed with the right channel... probably not the source material.

STL represent! Beautiful LaScala's, BTW.

I swapped amplifier output channels (yay speakons) and it stayed with the right khorn. Later tonight I plan to swap crossovers between khorns and see if the problem moves to the left khorn. I've ruled out the signal chain right up to the crossovers. I've also *pretty much* ruled out the driver itself, since the Atlas K55 driver and the Crites A55-G driver makes the same noise, even separated from the horn. I suppose they COULD be both making the noise as a defect, but it isn't likely since one is 50 years old and the other one is a week old. I've ruled out cabinet resonance because it happens in my hand. I don't push my Khorns at all. Interesting thoughts about transformer delamination. The caps are brand new so if it is indeed the crossover it almost certainly would be an oxidized connection or magnetics. I've been soldering for about 40 years and feel confident it isn't MY connections, though anything is possible. Thanks for the thoughts. Physical crossover swap happens next.

Thanks to you all for the replies. I had a rough day at work and won't have a chance to look at the horns tonight. Maybe tomorrow, I will keep you all updated!

Thanks for your reply. This is definitely coming directly from the raw driver detached from the horn and held in my hand so the cabinet is not in the picture. Exactly the same frequency points on the old K55 driver as it is on the new A55-G driver. Since I swapped the amplifier outputs and it remained on that channel, the only thing left is the crossover and the speaker wire. I'm at work now but I can take an oscilloscope home later and see if I can see the distortion pre and post crossover.

Ok, so here's one I'm trying to solve. While listening to music, I came across a Norah Jones track and at the beginning of it her voice slightly buzzed in a weird way from the right speaker. I started the track over and heard it again. It was distorted. I fired up REW and hunted around with the generator until I discovered that between about 270Hz and 305Hz I can get this mode to pop in - complete overtone buzzing distortion coming from only the right speaker. Sounds like the squawker. I swapped output channels on the amp and fired it up again and it is still there in the right speaker. This is at completely normal listening levels, but I did notice that if I pump the level up a couple of dB I can get it to pop into resonance at a few Hz lower. The only drivers on my horns that are original are the K55s, so I said screw it and ordered a set of A55G's from Bob Crites. They came and the swap out was easy, new gaskets too. The resonance is still there. I pressed around on everything to attempt to dampen the resonance in case it was a piece of wood or something vibrating. Last night I narrowed it down to the squawker for sure. In fact, I removed the driver from the actual horn and it is coming from the driver. Once again I swapped amplifier OUTPUT leads and it is still just in that right squawker driver, not the left, so it doesn't appear to be in the signal chain all the way up to and including the amp. The only thing left is the crossover, but that's a simple type A. Anyone ever heard of such a thing coming from the crossover itself? It has been recapped but the magnetics are original. Tonight I might swap crossovers between speakers and see what that does. Any thoughts?

I would caution you not to do that anymore. Connecting an amplifier directly to the K55's can damage them very easily.

Boy, those would take a while for me to get used to looking at.

Beautiful equipment and beautiful software screenshots!

You guys are awesome. We need a wood grain fingerprint database for speakers so we can spot these things in a heartbeat.

Whoa. The exact same speakers are listed in another listing with a buy it now of $2000. http://www.ebay.com/itm/112307144800?ul_noapp=true $2000 for the pair is a good deal - I wonder how the owner of this listing would handle the bidders on the other listing if somebody bought them. Weird.

http://www.ebay.com/itm/112307145997?ul_noapp=true The buy it now price *was* $1000. Free shipping. I dunno what is going on here. They look like they're sitting in front of a storage unit. They're not far from me, but why didn't the first bidder just pay the $1000? Free shipping too. Either an amazing deal or they're going to get destroyed in shipping.

FYI There's a black pair about 5 miles from me for $1500 on Craigslist. Been on there awhile. http://stlouis.craigslist.org/ele/5908774871.html