roddey Posted May 28, 2009 Share Posted May 28, 2009 I am having built a Cornscala with 2 boxes like the industrial La Scala for a center speaker. I am buying the Fastrak Wood Horn to go into it with Bob Crites Cast iron Woofers and Bob Crites tweeters. I can buy any mid range driver I want(within reason, 1 inch please) New Klipsch k-55-v type driver or Greatplains 902-16a? Parts: Fastrack horn BobCrites Cornscala Network Crites woofers Crites tweeters Greatplains Audio driver specs look like a drop in replacement more or less. Specs at 500hz to 20k. I am using la Scala with 511b and AA networks crossed over at 4500 hz using Crites Schematics, and Bobs twetters in them for LF Mains. I have an invoice from Bob and before I hit the buy button I would like some opinions please? Quote Link to comment Share on other sites More sharing options...
roddey Posted May 28, 2009 Author Share Posted May 28, 2009 Anyone use the Greatplains Audio 902-16a? Quote Link to comment Share on other sites More sharing options...
sootshe Posted May 28, 2009 Share Posted May 28, 2009 I would have thought that the K55 would be a better match for the rest of your components. The 902 is designed for a 2 way system & would probably be wasted if you only run it up to 4500 Hz. Would it sound any better than the K55 when used as a mid range driver? Not sure....I've never done that comparison. Quote Link to comment Share on other sites More sharing options...
kg4guy Posted May 28, 2009 Share Posted May 28, 2009 I would contact IB Slammin as he has 902's in his Cornscala dbb's Quote Link to comment Share on other sites More sharing options...
roddey Posted May 28, 2009 Author Share Posted May 28, 2009 Thanks,I just did. Rod Quote Link to comment Share on other sites More sharing options...
Blvdre Posted May 28, 2009 Share Posted May 28, 2009 The 902 is a very nice driver, although as sootshe pointed out, you'll be missing out on the excellent high-end of the driver if using a tweeter. In my search to upgrade the k55, I ended up with the JBL 2470 (another phenolic driver, like the k55) and have found it to be a good match, smoother than the k55, nice body in the low end. If you're strictly looking for new, I'm sure others will speak up with recommendations. Quote Link to comment Share on other sites More sharing options...
Blvdre Posted May 28, 2009 Share Posted May 28, 2009 Doh! Quote Link to comment Share on other sites More sharing options...
roddey Posted May 28, 2009 Author Share Posted May 28, 2009 Nothing is set in stone how I do this. I can make it a two way. The La Scala matching is what I wonder about with a 2 way 902 in the center and a 3 way La Scala as mains. I can start changing the La Scalas to match, but that will be another day and dollar. Can I handle the difference for a while untill I can? I dont know. If you need to move millions of tons of rock or a mountain, then I got you covered. Thanks all. Quote Link to comment Share on other sites More sharing options...
Blvdre Posted May 28, 2009 Share Posted May 28, 2009 In that case, I'd definitely go with the k55 for the center. Quote Link to comment Share on other sites More sharing options...
roddey Posted May 28, 2009 Author Share Posted May 28, 2009 The 902 is a very nice driver, although as sootshe pointed out, you'llbe missing out on the excellent high-end of the driver if using atweeter. In my search to upgrade the k55, I ended up with the JBL 2470(another phenolic driver, like the k55) and have found it to be a goodmatch, smoother than the k55, nice body in the low end. If you'restrictly looking for new, I'm sure others will speak up withrecommendations. Ah yes I aspire to JBL. After a full H/T music system from scratch that will have to waite till another day. Quote Link to comment Share on other sites More sharing options...
Blvdre Posted May 29, 2009 Share Posted May 29, 2009 You can find 2470's for much less than new 902's from GPA. The problem is, they're scarce and at times, overpriced. Mine were in OK shape (needed a bit of attention, cleaned gaps, replaced cap foam) with good diaphragms. They set me back $200 for the pair, a fair price I thought. Quote Link to comment Share on other sites More sharing options...
CIGARBUM Posted May 29, 2009 Share Posted May 29, 2009 I aslo built a pair of Cornscalas. I used Crites case 15' WOOFER, Klappenberger wood horn with Great Plains 902-16 driver and the Beyma tweeter, Dean built the crossovers. How do they sound________________it dont' get any better, wwonderful. CB Quote Link to comment Share on other sites More sharing options...
cjgeraci Posted May 29, 2009 Share Posted May 29, 2009 Agree with what some have said about missing out on the great top end if you use 902s in 3 way. I have had beymas, 2404s and frites and still prefer 902s as two ways. Run 902s two way with rear belles crossed at 700. Vmmv. Carl. Quote Link to comment Share on other sites More sharing options...
colterphoto1 Posted May 29, 2009 Share Posted May 29, 2009 The latest K55 from Klipsch would be the K55X Quote Link to comment Share on other sites More sharing options...
Johnny's Jill Posted May 30, 2009 Share Posted May 30, 2009 It seems you are on the right path, I have Crites woofers and Fastrac horns in my Cornscala's, and I love them. I currently use the K-55 drivers, although I have a pair of JBL 2426's for another project. Never heard the Altec 902, or the Great Plains. What crossovers are you using? Quote Link to comment Share on other sites More sharing options...
roddey Posted May 30, 2009 Author Share Posted May 30, 2009 For now, Crites Cornwall Crossovers. To fit under the screen I will be making 2(allmost) cubes. Split I can get them under my screen with a 1 inchtilt but stacked there 40 inches. About my ear height. . They will beabout H20 xW26 x D24 each.. If this workswell I would like to make 2 more of these(Maybe) as LR mains and movemy La Scala to the back. If these horns are an improvement over the 511b I will put a pair inthe La Scala right away. I would also like to get the La Scala back tostock looking instead of big cabs on top of them.The parts should be here by next Friday from Bob. Looks about 3 weeksaway before its all done. Quote Link to comment Share on other sites More sharing options...
Johnny's Jill Posted May 31, 2009 Share Posted May 31, 2009 Daves horns are going to be a huge improvement without a doubt. I have heard these in Lascala's, Cornscala's, Cornwalls, even sitting on top of Heresy's. In all cases it was killer upgrade. Craig. Quote Link to comment Share on other sites More sharing options...
roddey Posted May 31, 2009 Author Share Posted May 31, 2009 Today is the first day that I heard the La Scala's with a tube amp,tube pre-amp combo. The mids are a lot stronger. I was putiing Crites tweeters all the way in the back of the La Scala's now there in front again. Its not even broke in yet and it sounds a lot better with 511b's. Next I will try the La Scala wood horn in one of the la Scala's and AB them before I put the horn in the Cornscala Center speaker I am building. If after the wood horn the mids still sound to hot, does anyone know which tap to change on the autotransformer with Bob Crites 4500 hertz modded crossover to tame down the mids? Quote Link to comment Share on other sites More sharing options...
roddey Posted May 31, 2009 Author Share Posted May 31, 2009 Nice mid and high's. But now the la Scala's are drowning the little 150 watt sub I have. Need the new sub bad. Roy Orbinson sounds great. Quote Link to comment Share on other sites More sharing options...
bliss53 Posted June 15, 2009 Share Posted June 15, 2009 To fit under the screen I will be making What are doing for a screen? I am always looking for DIY ideas. Quote Link to comment Share on other sites More sharing options...
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