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In Reply to: RE: Myth ! posted by Cleantimestream on March 17, 2012 at 21:03:20
I am saying the performance claims are false.A friend of mine had the old Stephens 103LX in his 50s vintage Klipschorn. He also had a newer one with an EV 15WK. Both were replaced with the K43E and sounded quite a bit better for it.
The old drivers fetched very high prices on eBay.
His LaScala also had the K43E. We vented it as per my design, and EQ'd as per my design.
The Klipschorn bass units were subsequently sold, the LaScala went deeper and sounded better.
The K43s were retained in the sale for future use, the buyer had his own K33s (I believe).
Edits: 03/17/12Follow Ups:
His LaScala also had the K43E. We vented it as per my design, and EQ'd as per my design"
The room dimension and structure trumps any other consideration.
A LOT has to be done to make a LaScala sound decent. A stock Forte sounds better, mine are extensively modified as is almost everything else I make or own.
There are many flaws in Khorn {midrange mostly} Altec 311's and 511's walk all over Klipsch midrange.
Bass {in my room} isn't one of them
The Mind has No Firewall~ U.S. Army War College.
is it ported?
something strange...
just ask the people here for a 10-15cm conical 45 degree horn off of the face of the woofer or more...don't put the back edge of mouth across the edge of the woofer like EV 1502er...which is a great, midly horn loaded woofer PA speaker...(great speaker actually 100db/1w real effeciency)
if you go towards the 15cm distance, then the plane of the front edge of the bass horn lines up with where the front of the mid/high horn needs to be to time align the speaker....
I solve this by get good efficient woofer, find time align distance to your mid/high horn (by ear), then build a 45 degree conical woofer horn to match the mid/high horn...this will go down to 80hz or so check with "horn response software"...so you need a subwoofer...tune the ports accordingly...and you have amazing sound...ok...enough for tonight...???
Have Fun, -3db
particularly in midrange...LaScala especially is difficult; too many reflections...
You need a direct driver for mids: i.e. if you can't see the driver...forget it...
This gentlemans suggestions are good...I suspect that his coaching and designs using the Forte designs and mods ( you probably could still use a good Faital Pro, or B&C, or 18sound "ITALIAN"!! yes !! driver )
will get you WAY further than the LaScala...
So these are my thoughts: please discard at your leisiure...
Good Hunting, and Good Music to you,
-3db
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