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I picked up a pair of these horn drivers yesterday. One bolted to an HP640 60x40 horn and the other is on an HP320 30x20 horn. Im thinking the HP640 might be fun to try in a 2-way with eq - has anyone experimented with these drivers or horns? I know there are plenty of cheap large format horns around, so suggestions for alternatives would be great too, since I need to find another HP640. I have a set of big Cerwin Vega AT-15s with 15" woofers; an easy thing to try is plopping them up top and unplugging the woofers and tweeters... or maybe even try to integrate the tweeters at some point since they are actually nice sounding. Any suggestions for crossovers or eq circuits would be appreciated too! Thanks
Would'nt one prefer to have a 90degree horn for home audio?
With a little toe-in the coverage of a HP640 is fine. The HP640 is flat even off-axis, more so than most so-called 90° horns.
The HP640 also sounds quite a bit better than most 90° horns, including the EV HP940, JBL 2380, CLS PC494, etc.
I use the Electrovoice HP640 in a two-way configuration. I like them. You are correct that they will need some EQing since they are CD horns (this is true of all CD horns).
I do not have personal experience with that driver (I use JBL 2445 or 2446 drivers). IIRC, the DH1a is the perferred driver
In my setup the HP640's sound great (better than the wider dispersion HP940's).
Good luck with your set up.
Thanks for the replies! What eq do you rely on for top end eq? Has anyone listened and compared the dh2a directly? Im just curious if it had any advantages over the dh1a if it was a newer model I assume. How far will eq get you in the way of top end? I have some supertweeters too I can integrate if I find the top lacking. I picked up the drivers for cheap, so Id like to get them as optimized as possible for a fun home system. I assume the diaphragms are interchangable with Dh1a? I posted a wanted ad for some big horn lenses on craigslist, since I need to find another HP640; an individual replied saying he has a pair or Community pc494 for 75 bucks. I can post a direct link soon - their website is www.communitypro.com Are they something I should persue in the meantime? Thanks again!
It looks like that Community horn wont go down as low as the big EVs, so I'll probably pass on them. I'm also curious about the preference for the 640 over the 940 - what did you like better? Thanks!
Scratch that question about diaphragms - it looks like theyre not interchangable.
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