Wow....thanks! I thought sure that waveguide was long gone. How does it compare with the standard Econowave guide. Better dispersion? Thanks again.
Wow....thanks! I thought sure that waveguide was long gone. How does it compare with the standard Econowave guide. Better dispersion? Thanks again.
Wow....thanks! I thought sure that waveguide was long gone. How does it compare with the standard Econowave guide. Better dispersion? Thanks again.
Capital idea.Obviously a larger waveguide/horn will support a lower crossover point ( for those users interested in "rolling-their-own" with a 15" woofer ).
Is the B&C 250 straight swap for the 220Ti in either waveguide?Both waveguide types are so inexpensive that I recommend owning both models ( & then figure out which one is most the suitable for the current project ).
I suspect that the JBL clone has wider ( more even coverage // polars ) > though quite likely at the expense of a slightly rougher response ( I don't own any 220Ti Selenium drivers so it's hard to say any more ).
Both these waveguides have stood the test of time ( which I really feel is worth pointing out ).
Obviously a larger waveguide/horn will support a lower crossover point ( for those users interested in "rolling-their-own" with a 15" woofer ).
E
Is the B&C 250 straight swap for the 220Ti in either waveguide?
Are the B52 (QSC clone) or the Dayton (JBL clone) interchangeable with the SEOS12 without affecting too much SQ??
I have a couple Celestion 1746 (same as 1745 but with bolt-on, which is similar to B&C DE250, which is similar to Denovo DNA-360) and I am placing an order for the B52 In an effort to build a couple of Econowave Deluxe with Eminence Deltalite 2512, but it would be great to have other designs available (those with SEOS12)
Regards!
Thanks Earl. That was going to be my next question. How does the QSC clone compare to the SEOS? Those graphs are very interesting!I don't own any SEOS waveguides to be able to give you a definitive answer.
I'll get you a link ( or two ) for you to study ( for a different driver ) so you can arrive at your own conclusions.
Above is Bills original study of a raw de250 on a SEOS 15.
- It's obvious to these eyes it's losing loading below @ 2K.
Here's a Tymphany/Peerless DFM-2535 on a 152i clone;
It maintains LF loading much more gracefully than the same driver on a SEOS15 ( see below ).
The bumps you see ( over 2K ) ultimately play into the final crossover since the designer invariably tries to minimize them.
EarlK thanks for your info! Very insightful!
I think the answer to my question is... go try it then!
I'm thinking a little mix between Billwaslo SEOS12 plus Delta 12A and the Econowave Deluxe ... using Celestion CDX-1 1746, QSC clone and Delta 12A which is a lot cheaper than the Deltalite 2512 or the Kappalite 3012LF.
Weird this combination hasn't been used before, as each of the parts are "cheap" versions of others costing almost double.
Guilty as charged
Did you ever re-port the box to get more bass out of it ( down to 50hz ) ?
What about measurements ?
I'm curious bout how the crossover region hangs together ( with the substitute driver )
E
Not so "econo", but to keep the thread going. My latest...LE14H with 2344/2426 on top. The 2404 is for giggles and won't stay. 4430 crossover on top, customized LF crossover to meet it at ~ 1kH. F3 at 32 in 4.0 cu ft cabinets I got for near nothing. New motor board to bring the woofer up and, of course, to accommodate the odd size LE14. The curves for this and the 4430 match up, right down to the -3dB point. Next up, grilles. Next up, OLA conversion.
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