mustang guy Posted March 2, 2012 Author Share Posted March 2, 2012 Here is my center Very nice! Did you build it? Here is a photoshopped Bell to be 2' tall. Would shortening the bass horn effect the timbre much? Also, would having the tweet and squaker side by side effect anything? Quote Link to comment Share on other sites More sharing options...
MKing Posted March 2, 2012 Share Posted March 2, 2012 all three speakers are cornscalas Quote Link to comment Share on other sites More sharing options...
MKing Posted March 2, 2012 Share Posted March 2, 2012 Yes, I built them my self using Bob Crites design. Quote Link to comment Share on other sites More sharing options...
StephenM Posted March 2, 2012 Share Posted March 2, 2012 Why would a horn with 7.5 sq in entrance and 140 sq in exit, not have any bass? Also, I am talking about 65 or 70 hz at best. Is there some calculation on minimum mouth size for given frequencies? I found one formula; don't know how accurate it is: http://fullrangedriver.com/singledriver/horndesign.html Using a Size Factor of 2, I came up with 0.736 square meters needed or 1340 square inches for 80Hz. Quote Link to comment Share on other sites More sharing options...
mustang guy Posted March 2, 2012 Author Share Posted March 2, 2012 Why would a horn with 7.5 sq in entrance and 140 sq in exit, not have any bass? Also, I am talking about 65 or 70 hz at best. Is there some calculation on minimum mouth size for given frequencies? I found one formula; don't know how accurate it is: http://fullrangedriver.com/singledriver/horndesign.html Using a Size Factor of 2, I came up with 0.736 square meters needed or 1340 square inches for 80Hz. Good information. Thanks! Quote Link to comment Share on other sites More sharing options...
Moderators dtel Posted March 2, 2012 Moderators Share Posted March 2, 2012 Old design Take a Heresy, LaScala, or Cornwall, turn 90 degrees if you must, and connect. [6] Not enough room? [] Something in the way, move it, can't be that important really that it can't be moved a little. [] WAF a problem, give her some ideas of other hobby's your considering instead of this, that should help. [Y] Guns, strippers, weekly beer parties, cars, boats, this list can be endless. Just leave out the ones your doing already especialy the second one. Quote Link to comment Share on other sites More sharing options...
StephenM Posted March 2, 2012 Share Posted March 2, 2012 FWIW, if I were tasked with designing a "reasonable sized" Heritage center, given that the horn loaded bass idea is a no-go, a pair of 10" woofers would still do pretty nicely, at least compared to the single 12" of the Heresy. If the system were designed for a -3dB point of 80Hz, you could still get pretty high output and reasonably low distortion. Edit:Something like this but "klipschier" http://jtrspeakers.com/home-audio/triple-12ht/ Quote Link to comment Share on other sites More sharing options...
moray james Posted March 2, 2012 Share Posted March 2, 2012 A KLF20 turned on its side will get you into the low 30 hertz and with lots of output from dual ten inch woofers. Members have done this in the past. What more could you ask for? Use the mid horne of your choice if you want to match to your front left and right speakers. Best regards Moray James. Quote Link to comment Share on other sites More sharing options...
Brac Posted March 2, 2012 Share Posted March 2, 2012 James, A good idea but really how available is a single KLF-20? Quote Link to comment Share on other sites More sharing options...
Panacea Engineering Posted March 2, 2012 Share Posted March 2, 2012 OR........You could build one of these and put your TV in it along with all of your components and probably still have room to park a Volt.............! Quote Link to comment Share on other sites More sharing options...
moray james Posted March 2, 2012 Share Posted March 2, 2012 I have seen an Acadamy go for more than some of the KLF 20 pairs out there. That is not the point though. The best performance will be with matching the fronts to the cente speaker. You can build a new cabinet to suit for the centre position for any heritage speaker you like or have. If you have to make some compromise in your set up then do so if you don't want to or can't then use the best cente that you can that works for you. You can buy the horns to build most any Heritage speaker that you want so that leaves you only to find suitable woofers. I think that it would be cheaper to buy a used pait of what ever you need and sell the unused or keep as spare parts or use as a rear centre. Best regards Moray James. Quote Link to comment Share on other sites More sharing options...
psg Posted March 4, 2012 Share Posted March 4, 2012 Hate to say this... Use a projector and an acoustically transparent screen and you've done. Quote Link to comment Share on other sites More sharing options...
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