It looks like the MSRP price on the 435Be and horn combo is $2,690 a pair. That's the best available for a DIY project for now. One could substitute in any one of the aluminum or beryllium, aquaplased or non-aquaplased c.d. variants as desired but none of them will sound quite as nice as the 435Be.
I highly doubt JBL is going to make the 476Be and horn combo available for years and years.
I wish some forum member would be able to clone that H9800 that you are currently borrowing.
Give me the drawings on the horn so shall i let a man make them in his CNC.
regards mats
I think Mr. Widget posted them somewhere or has them somewhere.
1) Throatless "pancake" drivers, neodymium magnets, 4" diaphragms, 1.5" exit, both have 3.25" bolt circles, contrary to 2452H spec sheet:
http://www.jblproservice.com/pdf/Dis...els/2452HJ.pdf
2) Terminals are attached directly to the diphragms, ribbed for 2452H, smooth and Aquaplas'd in the "-SL" version. Rear cap damping is a felt pad, not foam. Plastic bushings in the cap seal to rubber standoffs under the binding posts.
3) If the phase plug is plastic, it's a damn hard one. Reddish silicone O-ring around the body perimeter makes a seal to the cap. No ferrofluid.
4) Performance on PT-F95HF, a direct bolt-up. L/R 24 dB @ 600 Hz for protection only. #7 and 8 have diaphragms dated last month, #5 and 6 are somewhat earlier and broken in, if that matters.
"-SLs" played on different horns @ 1.2 kHz with compensation for Ian's visit, so a half-dozen members have heard them here....
The whole thing might be practical if the lower and upper part of the horn are glued together out of some sheets of plywood (pyramid style). The steps need to be sanded.
Some recalculation might be necessary, the final handcraft is not that hard.
Just a proposal.
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Peter
I have a set of D82450SL phragms that don't have aquaplas on the surrounds.
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