justinsweber Posted April 16, 2010 Share Posted April 16, 2010 I bought 2 Heresy speakers... the Cabs were rocked and had my cabinet maker make a set of newones to drop my parts into. I got the wise idea of using slightly larger measurements (Internal) 21"tall x 15" Wide x 14" deep. ~2.5cu ft instead of ~1.8cu feet. Is this going to mess things up? I can add material to 2 sides... Its 3/4"mdf + 3'4"oak ply on the sides, top and bottom and only 3/4" oak on front and back. So I can add alot of matterial if needed... Do I need to? This are stock, using the old parts. Thanx, Justin Quote Link to comment Share on other sites More sharing options...
DizRotus Posted April 16, 2010 Share Posted April 16, 2010 You indicate an increase of internal volume of nearly 50%. I'd be prepared to decrease the internal volume. Perhaps you could use bricks to temporarily reduce the volume while you listen to the results. Quote Link to comment Share on other sites More sharing options...
ZombieWoof Posted April 17, 2010 Share Posted April 17, 2010 Yeah Ya gotta stay with the internal cubic volume OR they will not sound right porting &/or adding stuffing makes it even worse Quote Link to comment Share on other sites More sharing options...
justinsweber Posted April 17, 2010 Author Share Posted April 17, 2010 I remesured things... I was working in the ER... hard to concentrate. Internal measurement is 21 tall x 14wide x 13deep 21x14x13=3822cu in = ~2.21 cu ft Is .2 over too much? If I have to bring down. I can add a 3/4" mdf panel to the rear... making is 1.5" thick on all side but the motor board. 21x14x.75"thick=220cu in 3822cu in minus 220cu in = 3602cu in = ~2.08cu ft Seems very very close then :-). 21x13x12.25 = 3601.5 ~ 3602 = ~2.08 Heresy I specs: Outside 21.4" (54.36cm) x 15.5" (39.37cm) x 13.2" (33.53cm) ~ Inside 20” x 14 x 11.5 =3220 cu in - ~ 1.8cu ft From what Ive read… many feel the cab could func. Well as a 2.0 cu ft cab. At 2.2cu ft (as is now) is .6 larger than stock. If I reduce to 2.08cu ft is .22 larger than stock Thoughts? Thank you Quote Link to comment Share on other sites More sharing options...
ZombieWoof Posted April 17, 2010 Share Posted April 17, 2010 Bob Crites figured the internal volume of a Hersey @ 3339 cu.inch as I was building a center speaker & a hersey cab didn't fit into my entertainment center .So I had to build one& I wanted the horns side ways with the woof off to the side add some 1/2" x 1/2" bracing to the internal seams & that with your added panels will get you very close the that volume the Volume all has to do with the sealed woofer as it's tuned to that volume , this worked for me ! Quote Link to comment Share on other sites More sharing options...
justinsweber Posted April 18, 2010 Author Share Posted April 18, 2010 OK to drop the volume down, I have cut a back panel .75thick (20 15/16 x 13 15/16) and top and bottom panels .5 thick (13 15/16 x 12 3/16) So new internal measurements are 20x14x12.25 = 3430cu = ~198cu ft.... Im done... Good I hoep it sounds good. I bought garilla glue and 1 5/8ths deck screws... the inside of this cab is wayyyy tooo thick... I love heavy but wow... Side are 3/4" mdf + 3/4" oak ply. Front is 3/4 Oak ply, read is 3/4 oak ply + 3/4 MDF. Top and bottom are 3/4" oak 3/4" MDF + 3/4" MDF The top and bottom have 3/4" MDF+3/4 oak, glued and screwed. I now have to glue and Screw the additional 3/4 MDF to the 3/4" MDF. I soooo hoope no resonant sounds happen. Quote Link to comment Share on other sites More sharing options...
jamesV Posted April 18, 2010 Share Posted April 18, 2010 Do post some pictures when you are finished. James Quote Link to comment Share on other sites More sharing options...
ZombieWoof Posted April 18, 2010 Share Posted April 18, 2010 my rebuild Hersey's are 1 & 1/2" thick all they way around as I added 3/4" oak Plywood to all surfaces but the motor board , even added 3/4" to the back panel(which I M H O was Way too filmsy) as stock I could feel that back panel vibrate the sound of the Bass response improved greatly after added the thickness & Yeah they be some heavy beasts ... I sealed everything tight They sound GREAT ! i learned this all when I rebuild my Cornwalls into CornScala's as I had added 3/4" Oak plywood to all surfaces there also the bass response was a Huge difference with the CornScala's over the Stock Cornwall's @ the time I was told I was doing an OverKill & wasting my time ,money but that did not happen it really made a very noticable difference ........ Quote Link to comment Share on other sites More sharing options...
justinsweber Posted April 19, 2010 Author Share Posted April 19, 2010 PIC time... 1st time using Snapfish Quote Link to comment Share on other sites More sharing options...
justinsweber Posted April 19, 2010 Author Share Posted April 19, 2010 more Quote Link to comment Share on other sites More sharing options...
justinsweber Posted April 19, 2010 Author Share Posted April 19, 2010 more more Quote Link to comment Share on other sites More sharing options...
ZombieWoof Posted April 19, 2010 Share Posted April 19, 2010 Look into the Bob Crites CS-1 mod for those cab's You Will Not Be Sorry! see this post of mine as you seem to be doing the same as I have done as your CornScala build was exactly like mine same horns & drivers that I used http://forums.klipsch.com/forums/p/134111/1361773.aspx#1361773 last post I sold all the Klipsch Heasy parts for about 2/3 what the CS-1 mod cost me , Soo it not really that expense & the outcome was Jaw dropping ! the same thing happened with my Cornwall drivers & woofs they sold fast for about 2/3 what the new Crites drivers cost me to convert to the CornScala mod Quote Link to comment Share on other sites More sharing options...
justinsweber Posted April 19, 2010 Author Share Posted April 19, 2010 Im just trying to get these Heresys sorta back to basics... went overbaord on the new cabs. I did call Klipsch today and found out I can buy a K401 for $50.... WOOWOOWOWOOWOW amaging. After my weding May 1 I will be buying just to hold on to :-). G/F is a bit unhappy with the number of large speakers... let alone tube amps. :-) Quote Link to comment Share on other sites More sharing options...
Marvel Posted April 19, 2010 Share Posted April 19, 2010 Are these the original Heresy parts? Or from a Heresy II speaker? My son built new mid horns for his original Heresy speakers, put the mid and the Crites tweeter on the outside of the cabinet. The original hole for the mid is covered and the original hole for the tweeter has been turned into a port. I can't remember the depth of the port. They sound GREAT! The bass is deeper, too. Quote Link to comment Share on other sites More sharing options...
justinsweber Posted April 20, 2010 Author Share Posted April 20, 2010 Origonal Heresy Parts... Well the K700 and K55. Bobs tweeter. Im half thinking of building these new and bringing the guuuuulllly heresys to my office instead. Quote Link to comment Share on other sites More sharing options...
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