Klipsch Cornwall IV


Hello all,

I'm interested in what people who have heard the speaker feel about it. I currently run spatial M3 turbos and have an all tube analog setup ( line magnetic, hagerman ) with an oppo 105 being the digital front end.


Previous speakers have been acoustic zen, reference 3A, Maggie 3.6, and triangles. I am more concerned with a huge immersive sound stage than I am with pinpoint imagery. I have a big room and have plenty of space between the back wall and my speakers if I need it.


Any thoughts?
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@raindog69,  I have some photos that I could share.  I performed a similar if not identical upgrade as donsachs.  

I would say this is an intermediate level project.  I didn't find it terribly challenging on the skill level, but I did find it taxed my patience.  

There’s no question in my mind that the CW IV crossover can be easily bettered with more substantial parts. The caps and resistors are run of the mill. Careful here--I’m not saying that leads to run of the mill sound. See my post on modifying the Carver Crimson 275 amp. Bob used some decent and some dirt cheap parts in it. The coupling caps in that thing were the size of my pinky fingernail. They are inexpensive and not of good quality. Can they sound ok in a good circuit? Sure. Same thing with Klipsch CW IV.

I’m not saying folks should do this to the CW IVs. But, I will venture to say, and I’ll bet DonSachs would likely agree, many folks will question what he and I have done here while they are out buying very pricey power cords, interconnects and so on. This upgrade will best all of that in my humble opinion.

My CW IVs are about 100 hours in or so. They sound glorious. VCap ODAMs are really special caps. They almost sound like the cap is out of the system.


@jbhiller Thanks for the offer, but even with detailed photos, quite frankly, I'm unlikely to attempt these modifications. I lack two necessary things at the moment - time and patience. Maybe one day, as I'm sure the mods would make these speakers even better than stock.
As Don had indicated, you need to ensure the VCap ODAM bodies don't touch anything conductive as they are conducive too.  I started by applying high grade silicone tape (electricians use this to cover high amperage lines).  However, I got a bit nervous about anything touching so I tore it off and started over by wrapping each and every capacitor;  peace of mind.
@jbhiller , many thanks for the details on your mods. Between your experiences and Don Sachs's, I'm getting closer to trying them myself.

So what exactly did you end up wrapping the ODAMs with? And how did you glue them down?
I wrapped the ODAM bodies with black silicone electrical tape.  Something like this:  https://www.amazon.com/Seal-Self-Fusing-Silicone-Tape/dp/B08B3JSJF3/ref=sr_1_1_sspa?dchild=1&key...=

I honestly didn't glue every last piece down.  I realize vibration could play a role here, but my solder welds were very strong and I positioned things so snugly that nothing is going to move. You could easily put some hot glue or clear silicone underneath replacement parts to go the extra mile.  I believe Don did. I think I put some silicone under two of the biggest caps.  Frankly, everything fits so snugly anyhow.  

I took photos and a video of everything before I disassembled it just so I'd have a reference as to what went where.