gearhead919

Green=corner bracing/port. Right side and back removed

Motorboard behind front trim

Thanks! these were actually the exact drawings I used.

Diz, I want to thank you for your kind words! As near as I can tell the man in the stone soup parable was a complete genius. Thanks for making the connection [] If I wanted to have EXACT cornwalls, yes, I would definitely end up replacing almost everything. I do not, however, wish to have EXACT cornwalls. I was at a garage sale and rescued a pair of KP250II's for 35 bucks. One woofer was trashed (If anyone needs a 12 inch woofer from the other one, holler and i'll sell it to ya cheap!) and the cabinets were utterly disgusting. So I already am having to build new cabinets and replace a woofer. Which is when I decided to build bigger cabinets and buy bigger woofers (almost the same price). The original tweeters and squawkers sound great so why mess with a good thing? Crossover works great, The KP2.5D starts rolling off the mids at 700hz which may be a little higher or lower (I dont actually know where the crossover points of the cornwalls start/stop) than the cornwalls but how much of a difference can that truly make? They wont be exact cornwalls, but I'm quite confident they will produce goosebumps just the same.

Gary, Thanks for the suggestion! I actually have read (skimmed) through that thread and that is the exact drawing I used to generate a CAD drawing of the speakers I intend to build. I would love to upload the Google Sketchup (free) file on here but it says that this forum does not support that file extension (.skp) if anyone knows how to upload one of those please help a noob out! thanks I'll include a few pics from sketchup so everyone can see the inside and what not.

Bill, Thanks for throwin out the welcome mat! I'm glad you think my project is doable. I'll give you a little background so you can understand why I might want to do such a thing. First of all, I'm 22yrs old and located in Rapid City, SD. I am a contractor but there is basically nothing I won't attempt to build/fix/modify/restore. I have restored things such as 100 year old timber boring machines, hand planes, bicycles, motorcycles, houses, vehicles, you name it. Because I like to be a "jack of all trades, master of none" there are definitely things that I don't know and thus I must make things up as I go . As far as my history with klipsch speakers are concerned, I grew up with my folks in a house with Klipschorns and then Cornwalls, my dad is a drummer as am I and it's safe to say I've listened to lots of klipsch sound for some years now. For me, the reasoning behind doing this project is because I saw a sorry looking pair of KP250II's that needed rescuing. My ultimate goal is not to make an exact Cornwall, but rather an upgraded version of the KP250II. I'm calling it a cornwall, because if it looks like a Cornwall and sounds like a cornwall (hopefully close) then it's close enough to call it one in my book. For me the act of building or restoring something takes it from an object into a memory, something I can keep and take care of forever, and one day look back on it and remember the work I put into building the speakers. Again thanks for rolling out the welcome mat! I hope I can get some good information and people can learn from my mistakes here.

Rick, I realize that in the exact sameness of the parts that they are quite different, Im sorry that I mis-spoke. I do think that they are quite similar in the respect that they are horn loaded mids and highs and when I listen to both the cornwalls and the kp250II's they produce excellent sound. How much will moving the horns from a small to a large cabinet change the sound? It should be none because of the fact that they are horn loaded right? As far as the woofer is concerned, if I buy say crites CW1526C replacement woofers and put them in the very enclosure they were designed to be in how much more inferior can that sound? Which I guess leaves the crossovers. Im not an electrician by any stretch of the imagination, but I have a basic understanding of how a crossover works. It basically controls at what freq the drivers stops playing and how fast it stops playing it (rolloff) right? In which case, it may play up slightly higher than a cornwall II but again I am wondering if any of this will truly be discernable to the human ear or if it will just sound like another pair of rockin klipsch?

Hey guys, first post on here. new to the scene. Found a pair of KP250II's at a garage sale($35). One woofer was trashed and the boxes were lookin pretty rough as well so my intent was to just buy a new woofer, yank out all the parts and build new heresy cabinets. Until one day, when I was looking at my dad's cornwalls sitting in the living room and thought, "well hey most of the parts are the same why not build some cornwalls instead(prices for new 12" woofers vs 15" don't seem to be terribly different. Found a sketch for a cornwall cabinet over here: http://forums.klipsch.com/forums/t/105447.aspx . After that I downloaded google sketchup and drew up my cornwalls. Hope this project works out well! gearhead