regener8klipsch Posted October 22, 2014 Share Posted October 22, 2014 Hi ....wanted to know if there are 2 types of metal horns for Heresy cabinets? Sonically different?....thoughts? Thanks for reading 1 Quote Link to comment Share on other sites More sharing options...
moray james Posted October 22, 2014 Share Posted October 22, 2014 Second time first post vanished. There is the K700 which is a cast metal standard one inch screw on style and the K701 which is a cast resin designed to use screws to mount the driver. The K701 is less resonant and generally much better built as far as precision goes. Both are very old and outdated designs both require work to sound good. These horns both distort far more than modern and better designed horns ant bot offer limited bandwidth though in a three way that is moot point. Hours such as used in the KLF series are far better and offer much more extended response which is proof of their superior design and the horn in the CF3/4 is a better horn again. Both are hybrid conical tractrix horns and I consider the CF3/4 horn to be a poor mans K510. If you want a horn that sounds like a K400 then the K700 is your best choice. Past that if you have no investment in them walk away and look to far better and more modern and larger horns which will hod polar pattern control down to lower frequencies as they will sound a lot better. Best regards Moray James. PS: welcome to the forum it is a great place. Quote Link to comment Share on other sites More sharing options...
Fjd Posted October 22, 2014 Share Posted October 22, 2014 (edited) There is the K700 which is a cast metal standard one inch screw on style I'm not sure of the year of change and I do not think the sound would necessarily be impacted; however, there are two versions of the K700 cast metal horn that I'm aware of. One has four mounting holes and the other has eight mounting holes. Edited October 22, 2014 by Fjd Quote Link to comment Share on other sites More sharing options...
djk Posted October 22, 2014 Share Posted October 22, 2014 The older K700 has a thicker casting too. I prefer the newer K700 with some damping applied. Quote Link to comment Share on other sites More sharing options...
Frzninvt Posted October 23, 2014 Share Posted October 23, 2014 There is a Dope from Hope paper discussing the new thinner K-700 horn with the reasoning behind it. Implemented in '80 - '81 or perhaps shortly before. My '77 Heresy's have the beefy cast K-700 horns and my '84's have the K-701 with the K52 midrange. Forget what my '80's have in them. To answer your question yes there are different types of K-700 horn lenses. Quote Link to comment Share on other sites More sharing options...
Bill W. Posted December 28, 2014 Share Posted December 28, 2014 The original K-700 horn was sand-cast aluminum, fairly thick walled, used for many years for the Heresy. The replacement was die-cast aluminum, thinner walled than the original but with better dimensional uniformity. It has smoother frequency response than the original. 2 Quote Link to comment Share on other sites More sharing options...
OO1 Posted January 19, 2015 Share Posted January 19, 2015 The original K-700 horn was sand-cast aluminum, fairly thick walled, used for many years for the Heresy. The replacement was die-cast aluminum, thinner walled than the original but with better dimensional uniformity. It has smoother frequency response than the original. fantastic and very informative Quote Link to comment Share on other sites More sharing options...
OO1 Posted January 29, 2015 Share Posted January 29, 2015 The original K-700 horn was sand-cast aluminum, fairly thick walled, used for many years for the Heresy. The replacement was die-cast aluminum, thinner walled than the original but with better dimensional uniformity. It has smoother frequency response than the original. as a matter of fact - I always was told that the thicker ones were the best ones - we know hear of the contrary - thanks Quote Link to comment Share on other sites More sharing options...
jimjimbo Posted January 29, 2015 Share Posted January 29, 2015 And, the newer K-700 weighs a full 16oz more than the old model. Quote Link to comment Share on other sites More sharing options...
djk Posted January 29, 2015 Share Posted January 29, 2015 "And, the newer K-700 weighs a full 16oz more than the old model." That's amazing (considering it's thinner than the older ones). Quote Link to comment Share on other sites More sharing options...
OO1 Posted February 15, 2015 Share Posted February 15, 2015 Hi ....wanted to know if there are 2 types of metal horns for Heresy cabinets? Sonically different?....thoughts? Thanks for reading there are 3 metal horns for the k700 - 1) The early k700 with very- very thick castings like these -4 screwholes http://www.ebay.com/itm/FIRST-GENERATION-Klipsch-K-700-horns-3-TIMES-THICKER-HEAVIER-no-RING-distortion-/291296247331?pt=LH_DefaultDomain_0&hash=item43d29bfe23 2) the second series k700 with thinner castings - 4 screwholes as well - http://www.ebay.com/itm/VINTAGE-KLIPSCH-K-700-METAL-MIDRANGE-HORNS-PAIR-HERESY-SPEAKERS-K55-ATLAS-K55V-/191506647575?pt=LH_DefaultDomain_0&hash=item2c96af8a17 3) the 3rd series k700 with thinner castings - 8 screwholes vs 4 - http://www.ebay.com/itm/Pair-of-VINTAGE-Klipsch-K-700-Thick-Metal-Midrange-Horns-for-Heresy-Cornwall-/181613432063?pt=Vintage_Electronics_R2&hash=item2a49010cff&nma=true&si=nR0StYDbxF5fyJfgVZE%252FesFGUzo%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557 Quote Link to comment Share on other sites More sharing options...
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