colterphoto1

I have one RB5 woofer NIB.

Any 15" with a cast frame most probably will not fit without modification. I grind down two sides of the frame with a 60 grit belt on belt sander, being careful to vacuum away all loose bits of aluminum from the process. Make certain to ascertain which sides to grind on prior to grinding. Klipsch stamped steel baskets should fit without modification. You run into same issue with MWM cabinets, both original and single woofer styles.

forte and Chorus woofer surrounds are INVERTED roll butyl rubber type, and the passive had accordian-type surrounds. Those appear to be either not original Klipsch woofers/passive woofers or ones that have had new surrounds added incorrectly. Might sound ok but not stock parts most likely.

See Also: Beranak's Law

I know this feeling only too well.

Who are you talking about? well, I bought Bill's.

Agreed. I had mine painted and installed new passive balanced crossovers from Crites to bring down the horn by 3db. They are amazing.- Woody MM- Klipsch in Altec Theatre Grey - me likey!

CORNWALLS ON STEROIDS!

If you can have rear ports - RB5 or RB5II will smoke any of those.

That mahogany is about the sexiest Reference finish going. I'd love to have a pair of these. Fortunate to have oak RB5 and owned the maple RB3 at one time.

Sadly the dreaded AK2 network.

If you wish to sell the components separately, I'd be interested in one or both of the alnico K77 tweeters. I have a very weak one in a Khorn and replacing the diaphragms in that variety isn't simple. Thanks.

You done good mang - pair of minty forte II's and H III's in one swoop across the north side of town. Best bang for travel buck ever. Good truckload too. Nice to meet you and give a bit of history lesson.

See how you are? You guys make me so proud sometimes!

What appears to be particle board motor board, the pegboard rear panel, fibreglass insulation dampening, 'network' part, were never used in Klipsch loudspeaker. Note that on early Heresies, the rear panel was only 3/8" panel, not 3/4".

Looks to me like someone cobbled together a Heresy 'clone' using original dimensions, a biscuit joiner (modern technology), with parts from a early-mid 60's pair of actual Klipsch Heresies. The style of wrapping grille cloth around motor board, then securing with screws from the back of the cabinet cleats matches that used in my 1963 Cornwalls. Perhaps the old mids were blown and tossed (horror of horrors), but those woofers and tweets are worth the price of admission. You could possible fashion them back into something resembling and sounding like a true Heresy of the era with K700 horn/K55V combo and a proper network. Lots of loose parts floating around here on Forum from guys who have modified their speakers.

Illinois -> Iowa, I'd make it happen.

I have one of these and agree that it would not ship well. Very bulky and MDF. I would stick to my guns with a personal pickup. They're not making these any more and I think it's one of Klipsch's finest center speakers that melds well with the earlier series.

Suggest a K510 horn with B&C75 driver, like the top of a KPT904

Looks like you have LSI-BR-LF, LaScala Industrial, Birch Raw, Low Frequency unit. Should have a K43 in it from the factory, most probably a stamped steel version, as the cast frame woofers are newer and don't fit without modification. Michael

It's a sickness. The best pair is still in the tiki hut though lol .

As further test, those of us with twin MWM-S cabinets ( two, single 15" cabinets, the 'roadie-friendly' version, as documented in Klipsch literature at that time), also wire in parallel to the same type networks.

Those were built that way so a user could independently test the woofers. Yes wire them in parallel. The network was designed with this use in mind.

Enjoy and Welcome to the Madness!

Rocking it old school. I recall banks of those horn lens diffusers at old Yes concerts with the Clair Brothers Audio rigs. 70's vintage. Bet these ROCK!