What are my options, and what would the best choice be based on the following criteria? Beryllium is not an option due to cost, so I'm looking at SL diaphragms.
1. Fit the 2447 motor/core and phase plug.
2. Work better than the 2447J on the 2381 horn.
3. 5 will be used, but only 3 of those(LCR) in a 3 way and the remaining 2(surrounds) will be 2 way.
4. All will be above an 8/10" mid bass/mid range, so extension below 1-1.2K Hz is not necessary. I believe this is about the lower limit of the 2381, anyway.
Reasons for wanting replacements?
1. The 2447J drivers I own came from a church install and were put into service in 2002, making them about 14-15 years old. I'm assuming fresh diaphragms couldn't hurt.
2. These will now be used in a home theater system, but music playback quality is equally, if not more, important.
3. Improve on SQ above 1K Hz, and extend higher than 2447J without using a UHF driver/horn.
Nominal impedance isn't important, these will all be active. Cost/diaphragm should be <$200, max. Is there a better horn/wave guide, that is readily available and costs <$200 that would be a better choice than the 2381? If so, would replacing said horn be worthwhile, or are the improvements minimal?
Thanks.