jwgorman

Well, although it looks like the old 1200s, this is actually an audiophile table. Not that the older 1200s couldn’t fill that role, but the SL1200G was redesigned specifically for hifi. Thanks man. So, I’ve been playing with everything adjustment I can with this table and, oddly enough I prefer the slightly tail-down sound and VTF set to 2.0g.With the stock mat and the arm all the way down, it was still tail up and I didn’t care for that. An LP gear mat on top of the technics mat got me to parallel. The spacer got me to tail down and so far I prefer this sound as it seems to be thick and still detailed. This is a highly subjective thing obviously. I have only discovered the wonders of AT cartridges in the last 8 years or so. Before the AT33 I was running an AT150MLX and it was great but The AT33 is just a cut above in refinement in my opinion. Prior to that I was running Shure V15s and Ortofon MCs. I’m hearing all sorts of nuances I’ve been missing forever!

I had run a Thorens TD320 MKIII since ‘93 and just got the new Technics SL-1200G. It’s a huge upgrade to my ears. I’m running an AT33PTGII and I have to use a 3mm spacer and another mat to get the arm low enough that I get a slightly tail-down VTA. But man, it sounds good through the Cornwalls and my Luxman 550AXII. Amazing.

That’s a lot of information! Holy cow.

Moray, yes, the lower freqs that the mid produces but doesn’t control very well, the collapsing polars frequencies, were the freqs I doubted were effected by the felt.

I’m a bit confused myself. I doubt it is thick enough to help with the freqs that the mid can’t control, but my theory is there is some high freq stuff bouncing back from the grill? Or maybe is does actually do something to the freqs low enough that the horn can’t control them? I know AR used to put felt around their mids and tweets. Of course they weren’t using horns on the 9s.

I’m super happy with how the CWIIs sound in my living room but Chris’ foam on the edges of the horn suggestions due to lack of polar control led me to put heavy drapes near the speakers and in stall foam at the edges of the mids. Looking at the grill structure I thought it may be possible for reflections to bounce off the motor board. So I installed self adhesive felt, bought at Amazon. I admit I don’t know about the mechanics of what changed. I spent a couple hours listening last night and I think it’s worth recommending as an experiment for those with horns mounted from the front. It seems like the imaging is more precise and it’s easier to hear individual instruments in a dense mix. This is a $10 experiment that is easily reversible.

Me too.

Hang on, who blew up the dayton planars? I got then to play stinking loud with the crossover I put in an earlier post. No signs of strain or smoke here.

Man. This is terribly sad news. I was an engineer at Rockwell when Dennis was hired. I knew him from the Audio Room in the 1970s and ‘80s. He was very knowledgeable about everything he found interesting. Like anything from UZIs to fighter jets to Suzuki triples. And of course, anything audio related. I was always in awe of his recall and his never ending quest to make good things great. I don’t think I ever had a conversation on the phone with him that lasted less than two hours and didn’t cover at least thirty topics. He was a very generous man and a man capable of serious thought. I want to think he’s up in heaven tinkering on projects to his big heart’s content. So long Dennis.

What happened that you didn’t like when you put Cornwalls in the corner?

Thank you. It’s old school! EL34.

The Luxman SQ38u

Guys, My Luxman SQ38u is still for sale. It pairs well with heritage Klipsch. For forum members, the price is $2300. I'm about 10 minutes from Cedar Rapids Iowa Thanks Joe

If you can palletize them, forward air is reasonable.

Cornwall II didn’t change woofer position right? That’s the III change.

Nice, well I learned something today. That is a cool picture. Klipsch was very efficient with the foam application!

Interesting. I’ve never seen anything in Heresys. Did you purchase them new?

Ah. Yeah I’ve seen pictures of it but I figured the stuff I bought would do roughly the same thing. It is quite noticeable doing a before/after. I can’t imagine why klipsch stopped doing it.

Thanks. Yes it was glued in place. I had some brass screws in my speaker stuff box, so I sunk a screw too. Just to be sure

I did that too, only with upholstery grade 1/2” foam. Thanks. They sound really good

After reading some of the comments about the poor quality of CWII crossovers, I blew in every thing I’d need to rebuild the stock crossovers in my newly acquired ‘86 Cornwalls. I found one really cold solder joint and the inputs at the cup were all loose. I reused what I could, threw on some super HD cinch terminal strips and then discovered I didn’t order new 3uf caps! D’oh. I had some 1% 2.7uf and I’m running them until the 3uf caps show. So I think this is a worthwhile maintenance item. I hear more clarity in the treble and enough clear bass I turned off my sub. Oh, Bob and Dean and many others here have nothing to fear from my assembly skills.

I did an experiment with a 1/2” Bonded Dacron Upholstery Grade Polyester Batting. I lined all sides save the motor board. I like what I heard, or didn’t rather when I talked into the cab with the woofer pulled. Quite apparent that there was some reverb happening prior to lining the cab. I think it will stay.

John, roger that. Older Cornwalls had a lining, paper maybe, that the Cornwall IIs (85-90) didn’t. I’m wondering if a thin lining of the cabinet interior might be beneficial. When I pull the woofers to swap the crossovers I’ll try it.

I am rebuilding the crossovers this weekend and I’d be in there anyway.