Zene

Dr Who ... thanks. Be carefull where you land; ref: "Phone Booth" movie. Main goals are: Easier to build and versitility to test different speakers without buying four. Two stacked will be the same as one double. Three stacked per side? Ok! Ok! I am making a master dado gig for ends to ease assy. Four should be just as easy to build as two large. Casters? I use the regular large round chair ones. Drill out hole in ball slightly and stud will pull out easily. Move speaker wherever you want (sometimes is only inches), raise each corner and remove casters. You now have cheap version of cones. Very solid. (Slip over locking points?) Tough on carpet or floors. I'm sure good coasters can be devised. Jay, search (Jubilee) this forum .... first thread starts 3-29-05. Read all you can, do not just start building from final plan. Without Bert's superior work (D-Man,too) it would be vary hard to construct, but drawing is cad based, not plan drawing based. You will see. Not sure all who has actually built one. Big D has. No doubt I will be updated ........thx. Search in AES Journal for copy of "A Revised Low-Frequency Horn of Small Dimension" for Roy and Paul's original paper on the Jubilee. History is always good. You do know Klipsch never made a home version. Do not use their PA version drivers for home, per eMail from Klipsch. Makes finding a good driver almost impossible. Is all an educated guess. eMail me if you want. Would like to hear from current builders. Zene zene@comcast.net

Was contemplating doing stacked half Jubilees, but now seems quite different from one 2x12 horn. Is two drivers in one large back chamber and acting as a manifold firing into one large horn the same as two individual stacked horns? Thanks DM for pics. Zene

Even the good Dr. Bose beat that by a country mile for it's time, let alone the "Sweet 16" from the 50's (?). One of his first experiments was a large 1/8 sphere segment placed in corner with bunches of speakers. College grads did most of- the work and he got rich, smart. Couldn't help but make bass. Even though he was after omni at the time. Pic should be available somewhere, it's very interesting. Someone should try again. In fact .....Hmmmm, pencil? I have NSB's galore and 15 pair of paper wizzer cone 6 1/2 car speakers. Zene

DM .. Did you build the Jubilee? Or know anyone that has. I cannot properly position the center 13 5/16" panel. I'm stuck until I do. I need a dimension to a known reference point such as the 135 deg corner. Zene

Thanks, DM. I wasn't sure how much I lost. Wrongly under impression I only lost 3 dB. That helps as I will be using one wall or even none, even less bass. My mids will be too big for corner, so will loose some bass moving them out. BTW I live in Washougal (20 mi. E of Vancouver, WA), not B.C. Seahawks did place second. First if refs hadn't cheated. Zene

Bert .... Thanks to you for your hard work. Just starting prelim work on 1/2 Jubilees. Idea is to build two for show up front and one or two rear not so pretty sort of hidden. Best two get Teac'd. First one takes weeks, others, days. Hell if I learn to build them fast I could have 3 or 4 tacked in each corner.....maybe not. Would you be kind enough to give me or forum the latest drawings and throat configuration? They might be in follow-ups, but I want to make sure. Also, a dimension from end of 13-5/16 splitter board corner edge to the 135 deg inner corner? This is critical as I may have some improvement there and do not want to rely on the 150 deg reference only. Others ... Did we (collective) decide on good bass drivers? I only need two for now, so I can spend more. Zene zene@comcast.net

Gil ..Thx, got it, didn't look hard enough. Zene

Thanks, Gil You said someone here has plans for the Jubilee. Could not find. Can you or anyone help? Zene

Thanks, Guys ... Very much appreciated. Does anyone have an opinion on a scaled up version of the Klipsch Short Horn, or two stacked as designed per corner? It was in production for years. Some answers may be in your recommended articles. I will read right after Seattle wins Super Bowl. Guess what state I live in? Not to cool, but birds poop on steel workers. Not one interviewed sports personality said one team could win if they score more points than the ther team, weird. Sorry for interruption. Are there other bass cabinets that will rival the K-Horn? I swore never to build one again. It takes a 12 step program to get over the ordeal. I am trying to get as close to the "King" as possible. Not much will keep up with my horn-loaded P.audio coax 12's (see below). Imperials always come to mind, but big. No experience with them. Hopefully something not as big, but must consider everything. Would like recommendations for 12" - 18" drivers for what I believe will be a back-loaded horn, or whatever other type is recommended. Pi horns? Have my doubts. For anyone interested, mock up a short straight conical horn for most any mid driver you have lying around. One front one rear, 60 - 90 deg four flat sided. Cardboard is good for quick check. Advantage, perfectly linear cone movement. Open baffle with balls. I have never seen this done, but I don't get out much. Zene.

Hi ... I have plans and patent papers for the Rebel, if I have name correct. The 36" tall backloaded corner horn circa 1952. I got them from someone late in 2004, but lost contact. It does not conform to standard corner horn configuration. I believe I was told there was a reason for a large chamber between the throat and the corner. I wonder if I should scale up a Shorthorn (which has a tighter throat) instead. Does anyone have a working knowledge of either? Zene

Great thread earlier but was getting long. I need three SI or Teac or (?) amps for upper three speakers of quad amped home system. All will be good battery powered and modded. Teac has big case to work in, so there is a cost plus there. Which amp will give me the best sounding performance? (I know subjectivity is part of equation). There are no tubes in my system (I don't need help for my speakers ... tee hee). All speakers will be arrayed cones (100+ dB efficiency) except for supertweeter (prob horn). Thanks, gang Zene

Ref: Gil's attachment for the Rebel (1-3-05). I asked on another forum why the chamber behind the slot to the corner was so large and was satisfied with an answer of a "tuning chamber" until I saw the Klipsch paper. Then realized he was talking about the back loading chamber. If you compare fig 2 and 3 you will see a big difference in flare rates. Paul must have did this for economic reasons and is probably OK sound wise, but I still think that first chamber volume (AFTER THE SLOT)is much too big. Neither the LaScalas or K-Horns are like that. I've never seen any kind of horn with that shape. Answer should be a flat vertical board placed close to the slot and a vee splitter. I'm going to try a removeable piece, but wanted more input(ET) before I commited. Zene

Gil ... Am building a Rebel and would love a copy of PWK's article (thanks for the find), but cannot print PDF. Sizing does not help. Can you be of assistance. Zene