Frzninvt

That Popbumper K-Stack network literally brings that speaker to another level. I used to have a side by side picture of the original network and the K-Stack and it was almost comical. I was the first to test his network for him. It really elevates the speakers performance. Good luck with sale.

$1000 - $1500

No bookshelf models in the CF (Epic) Series speakers only towers. If you want to go bookshelves then get a KG (2.2, 2.5) center and then KG series bookshelves (KG.5, KG1, KG2, KG2.2, KG2.5, KG3).

No, the KV series were built with the Epic series speaker line. CF-2 would be the correct matching L/R. The KG 2.2 and KG 2.5 were designed for the Klipsch/Gillam speaker line.

A = 1962, B = 1963, C = 1964, D = 1965 where are you getting 1966 from?

The "D" indicates they were made in 1965.

There is no full grill. The full grill was just grill material stretched and stapled to the front of the speaker and then hidden with molding. Half grills yes.

Those are in fabuluos shape. Some of the nicest that I have seen. If I was within realistic driving distance I'd make an offer.

A zobel circuit is more for use in a subwoofer environment not a woofer. It most likely wont make any positive difference at all.

Better plan on replacing that sub at some point as it is not an matter of if but when that plate amp is going to fail. Unfortunately the odds are against you. Look into other brands of subwoofers. Not sure how the new Klipsch subs will hold up yet as they have not been on the market long (RP-1200W, 1400W, 1600W).

I would keep it around 50 to 60Hz because with a 12db slope you are still bleeding up to about 72Hz when set to 60. Unless you can do a 24db octave slope which tightens the cutoff frequency.

Too much or I would look into them. This guy appears to have a used stereo shop in Barre, VT but his prices on used gear are certainly on the high side. He does however have a nice selection of used gear just asking too damn much for it. He has them on Facebook marketplace as well. If he was around $2500 to $2750 I would make the trek and sell my La Scala's to partially finance them. The crappy AK/AK-2 networks in those would be the first thing to go or upgrade them to AK-3's by swapping out some caps and coils.

Screechy piezo's yuck. The older versions with dual quad manifolds and four K-78's were far better than the piezo's.

Too narrow not wide enough for them to image correctly. You should have at least 4ft of wall on either side once they are in a corner. You are better off with the La Scala's.

The Cornwall II grills will not line up properly with the Cornwall 1 HF/MF driver layout.