jwgorman

Sorry just noticed this. It has been sold.

Thanks John. I understand why Klipsch put caps on the upstream side of the autoformer!

Thanks

Klipsch historically designed crossovers with a cap feeding an autoformer and then a coil parallel to the driver (like the mid on the Cornwall II for example) Are those true second order crossovers?

I actually learned about his passing here. He introduced me to Dave. I have no additional information about DJK’s death. Some great memories from the Audio Room days though. He could make anything: better, faster, tougher. I was an engineer at Rockwell and left in 2011.

Yes, that sounds right. I bought some Lascalas from him.

I got to hear these in a custom pair of belles at one of DJK’s friend’s place. Very articulate. I too never really questioned his suggestions or recollection of specs.

With the 8 ohm HF146, I’m taking 10-11db off with the crites 3636 autoformer and I think I prefer the AMT more forward, like nearly at the front edge. I’m guessing that’s because the AMTs sound better a little farther from the back wall. If pinpoint imagery was my #1 priority it’d be hard to best these guys in 2 way. OCD sucks.

Thanks. I did this project with the goal of passive crossover unless I absolutely needed to go active. As Glens suggested, my OCD would mean I might melt down with so many options. But they sound so good now I’m thinking I can stay passive. I think.

I had Cornwalls in those corners before and I used my curtains to hide the TV per Chris’ advice. I don’t really need them with these guys. But that window does face West so yes, it’s good to keep the evening sun out of my eyes.

Yes. I had the cabinet maker make me some. They are 1/2” baltic birch! Ha. I will get cloth on them and see how they work.

My work on my new speakers is not over, still a little more fine tuning. They may be considered sort of a Cornscala E? These guys are capable of two way and three way operation. I’d remove the center spacer if I wanted to keep it 3 way and I’m leaning that way. The cab is designed for F3 of 39HZ, they are roughly 99db/w/m and use second order Bessel crossovers at 600/3.5k. I have changed a couple things from the straight calculation but man it sounds really good. I am not quite certain on placement on the AMT, but over the center of the Faital Pro comp driver sounds right. Some of my audiophile buddies showed up for a four hour marathon listening session last night. That was super fun. I am very unsophisticated with respect to cabinetry, amongst other things so, I had them built and I gleaned crossover tips from scouring countless threads and using crossover calculators. I have dubbed these “That 70s Speaker” for their slight and intentional resemblance to the Altec M19s and use of the ESS AMT in the three way config.

Thanks for the tip

Thanks guys. Yes, I mean the grill itself.

It’s a plastic something or other. I would like to buy some similar material.

I’m still searching for it!

Ok, 800hz 2nd Bessel. I have a box of inductors and caps and it’s way too cold to play outside today.

What frequency are you crossing at?

I cleaned the magnet but there wasn’t really any ferrofluid in mine.

I find it amazing how much of a game-changer a tweeter improvement is.

My apologies. This should serve as a PSA for old guys to not respond to a topic before drinking coffee and without reading glasses!

Jimbo, if he has Cornwall IIs he won’t have terminal strips. He’ll see this...