Originally Posted by chrapladm
Well thats good to hear. 750 is nice and low and even 900hz maybe for higher spl. Will order a pair of them in the next few weeks. I will be building the horn for these.(SH) I have been playing around the excel spreadsheet from bwaslo and thinking about 60x40. 90x60 was nice but to big for me. High volume was the key here for me. Numbers are only numbers to me until I can get outside with a test setup. So for now I was just shooting for 130db or more from the total horn.(3way/Mids/bass) I know I dont want just 130db from the CD but these are just rough numbers I am after. Will be a few months before I have anything that resembles a speaker.
And then I will be in a large open field for testing.
Chap, are you looking into a Synergy clone? Why use a 1.4" exit CD? The only reason I can see doing that is if you are trying to use mids which won't extend high enough for the CD but there are mids out there that mate well with a 1".
Originally Posted by Martycool007
Some random questions that I have:
Has anyone ever built a 3-way design with the Seos waveguides?
If using tte Seos-18/Radian-951PB, (or a Seos-24/Radian-950PB), as the mid-range driver/horn combo in a 3-way configuration, with something like a JBL-2225, for the low end, what would be a good tweeter and HF horn? I have considered building something like these as I already have the Radian CD, and the JBL woofers, but I am unsure what I could use for the tweeter and HF waveguide/horn?
Also, I am just curious as to what would be possible with using a RAAL tweeter on the Seos-RAAL waveguide? That seems like a funky combination to me, never thought about using that tweeter in a horn! LoL.
Marty, you've been barking up this tree for a while. The answers haven't changed. There are a nearly infinite number of ways to skin the cat. It comes down to budget, space constraints and priorities. If you had a ridiculous budget and could fit a 24" wide speaker I'd suggest something like a SEOS-15 with TAD TD-2002 crossed around 1300hz to a SEOS-24 with TAD TD-4003 covering 400hz-1300hz and a pair of TAD TL-1801 with one on top and one on bottom. Of course 3 of those would cost as much as a nice sports car and be about as big. You could scale that back with less expensive drivers if you want a slightly less uber 3-way horn setup.
Most guys won't use a "tweeter" above a SEOS-18 or SEOS-24. IMO, that approach is no longer needed with modern drivers. Either spend the money for a BMS coax, beryllium diaphragm or coated titanium or just stick to 1" exit CDs on smaller horns. Of course you will find someone taking nearly approach imaginable even if it defies logic (usually the motivation is either nostalgia or "more is better"). Also, the SEOS-18 is 1" exit so a 951PB won't work as it is 1.4" exit. The 950PB won't work on a SEOS-24 as it is 2" exit.
You mention Raal and 3-way horn system when they are really quite different. The RAAL won't be capable of the same level of output. The RAALs I've seen are best used above 2-3khz. They are also very expensive. Finally, they tend to have vertical directivity issues due to their shape. I haven't seen anybody use the SEOS RAAL setup.