dhsettim Posted January 16, 2002 Share Posted January 16, 2002 I hear some recommend replacing the stock klipschorn woofer with a JBL D130 (VTV article)--has anyone tried Tannoys?They are easier to find in NZ.Thanks. Quote Link to comment Share on other sites More sharing options...
TBrennan Posted January 16, 2002 Share Posted January 16, 2002 DH--I'm very leery of people claiming improvements to the Khorn with different woofers, PWK designed the basshorn empiracally around the specific woofer used, I've talked to several people reporting poor results with substitutes. I didn't know Tannoy made 15" woofers, all I've seen and heard here in The States are their big 15" co-axials, excellent speakers I think, most excellent. Quote Link to comment Share on other sites More sharing options...
djk Posted January 17, 2002 Share Posted January 17, 2002 The JBL D/E/K130/2220 is a very poor choice for the Klipschorn.They have a very thin curved cone with a very short voicecoil.If you want to fool around at least get a decent woofer like the JBL E145 or 2205. Quote Link to comment Share on other sites More sharing options...
vacs2000 Posted January 18, 2002 Share Posted January 18, 2002 Hi Personally I think a better woofer choice is the old Electro-VOice 15WK. Great speaker. I test it on my Cornwall... george ------------------ --------------------- Fisher 400-CX pre-amp Fisher 100 (EL37) monoblocks (3) Fisher 101R tuner Fisher 100-MPX Sony SCD-333ES Ampex 1260 reel to rell Garrard 401/SME3012R/Grado Speakers... ------------------------- Quote Link to comment Share on other sites More sharing options...
John Warren Posted January 20, 2002 Share Posted January 20, 2002 save your money, the 15W-K does not do as good a job as the K33-E. Quote Link to comment Share on other sites More sharing options...
khorn58 Posted January 21, 2002 Share Posted January 21, 2002 My 58 khorn has a stevens trusoninc 15 woofer(orig stock) This is a very well made 15 the sound is great.I like it beter than later klipsch speakers.they are somwhat rare today and bring high prices on ebay. VTC mag rated this speaker as one of the best ever made for horn use. My 60 corwall (the best sound one I have heard yet) uses a ev 15-w-k. klipsch used both ev and stevens woofer in the 50-60s.Both great speakers but exspensive to buy today The Elctor voice 15 w-k and stevens 103-lx2 were designed for use in the Khorn. Quote Link to comment Share on other sites More sharing options...
John Warren Posted January 21, 2002 Share Posted January 21, 2002 As a piston, the 15WK is inferior. Lower Xmax (4 vs 6.7 mm), higher Fs (32 vs 27 Hz) and lower efficiency than K33 E. There is no nostalgia for the woofer in a folded unit, it is a piston. Push an EV 15WK in the range of the K33 E and you smell something burning. Early Klipschorns I have owned had 15WKs in them. I have swapped them out. The improvement in bass output is so significant that the 15WKs are in boxes collecting dust. In fact, part of the reason that the old drivers "sound" better is because the don't push the horn into spurious resonances. The EV unit brings a cast basket to the baffle throat that does stiffen but this is a second order benefit that is overshadowed by the inability of this driver to properly energize the horn throat at high SPLs. Just because these drivers bring stupidly high prices on ebay doesn't mean anything. People have more money then common sense. In fact, vintage audio "collectors" have some of the worse sounding gear I've ever heard (myself included). A driver that comes from the "vintage" days that makes sense in the folded unit is the University C15W. This is the only driver from the 60s that I am aware of that was developed specifically for a compression horn bass unit. Straight, conical cone, huge magnet (6 lbs of Alnico in a 20lb structure), low Fs (24Hz), double spider and decent power handling. Atttached is a comparison to the K 33E. This message has been edited by John Warren on 01-21-2002 at 07:04 PM Quote Link to comment Share on other sites More sharing options...
khorn58 Posted January 25, 2002 Share Posted January 25, 2002 Ok I have never heard a Ev15 in a khorn but in a cornwall and it has geat bass in that setup. but my klipsch lit. says it was designed for the khorn as well the stevens trusonic??? My Khorns have the trusonic 15 which has great tight deep bass. My 3rd khorn (still looking for a match has the later klipsch driver not as tight a littel more sloppy sounding still a nice driver. Quote Link to comment Share on other sites More sharing options...
John Warren Posted January 25, 2002 Share Posted January 25, 2002 The only design feature that was specified for the Klipschorn driver was that it have an Fs "as low as possible and preferably below 30Hz". Nothing fancy. Quote Link to comment Share on other sites More sharing options...
khorn58 Posted January 26, 2002 Share Posted January 26, 2002 John warren Do you have any specs on the stevens trusonic 103-Lx-2. Quote Link to comment Share on other sites More sharing options...
johnnyp Posted January 26, 2002 Share Posted January 26, 2002 John Warren: Gee, that University driver looks like a woofer on steroids! Is that (4) voice coil leads I see in your photo? What's up with that? ------------------ John Packard Quote Link to comment Share on other sites More sharing options...
John Warren Posted January 26, 2002 Share Posted January 26, 2002 Khorn58-I have limited data on the Trusonic 103LX: "Molded" conical cone, 2" VC, 4.5 lbs Alnico magnet, Fs 35Hz, 25W, comes in choice of 8, 16 or 32 ohm VC impedance, Shipping wt 27 lbs. Its a "vintage", heavy, low power driver with limited excursion. These drivers were designed in an era when 10W of amplifier power output was remarkable. You should experiment with a couple of K33 drivers from the LLC. Last I looked they were $200/pr. Im not a expert in the history of the Klipschorn but I believe that when EV liscensed the folded horn from PWK they set out to manufactured the the Klipschorn with all EV drivers which meant a special LF driver i.e. 15W-K bass unit. On paper the 15W-K has better "numbers" that the 103LX and, if weight means anything, weighs 14lbs more! Klipsch switch from Trusonic/University/Atlas to EV/EV/EV with new crossover around this time (mid fifties). The mid horn however was still a PWK creation. Also, the Trusonic 105LX was a lighter magnet weight, lower power, lower cost version of the 103LX. Shared the cone, basket. I almost purchased a pair of Klipschorns with these "lightweights" in the compression chamber. The dealer swapped out the 103s prior to my visit. Sometimes it pays to stop by an hour earlier. Quote Link to comment Share on other sites More sharing options...
John Warren Posted January 26, 2002 Share Posted January 26, 2002 John P- it is a dual impedance voice coil. with one set of leads impedance varies between 4-8 ohms, with other set connected varies between 10-20. As a direct raditor this loudspeakers sound lousy (muddy). in a compression enclosure sounds very good. Quote Link to comment Share on other sites More sharing options...
Q-Man Posted January 26, 2002 Share Posted January 26, 2002 Thanks to John, I picked up some of these C15W's on ebay to use in the University bass-horn cabinet that I built. John kept telling me that he believes it to be one of the best sounding bass-horns that he has heard. I just had to try it, and I think that he may be right. Q. ------------------ Q-Man Quote Link to comment Share on other sites More sharing options...
John Warren Posted January 27, 2002 Share Posted January 27, 2002 I've attached a pix of the University Classic. This is similar in appearance to the horn Q-man is referring to. The woofer is located in the chamber to the right of the mid-horn. Quote Link to comment Share on other sites More sharing options...
John Warren Posted January 27, 2002 Share Posted January 27, 2002 And, here's an AD for the Classic from a 1955 Leonard Electronics Catalog. HiFi at it's best! Quote Link to comment Share on other sites More sharing options...
Q-Man Posted January 29, 2002 Share Posted January 29, 2002 John, As you know , that is the cabinet that I built and the same drivers were used. But, I mounted the mid. horn , tweeter and network on top of the cabinet. I didn't want them to interfere with the bass horn mouth opening. You can build a top end like the Klipschorn uses to hold those parts. I also tried loading the cabinet with LaScala drivers and horns. One thing for sure, this cabinet sounds way better then the the LaScala. For those of you capable of building this cabinet, do it. Then, just load it with your LaScala parts. The K33E and put the mid. and tweeter on top. This cabinet really sounds sweet when combined with my Altec 288-16K driver and 805B horn for the top end. Q. ------------------ Q-Man Quote Link to comment Share on other sites More sharing options...
hifi Posted January 30, 2002 Share Posted January 30, 2002 Textf> You guys inspired me to donate a scan of the plans for the Classic. I scanned it 200dpi. otherwise the text would have been fuzzy. It's 322kb, and should measure 8.5" x 11". http://dair.pair.com/hifi/uniclasplans.jpg Quote Link to comment Share on other sites More sharing options...
hifi Posted January 30, 2002 Share Posted January 30, 2002 Textf> And when you're finished it should look like this... http://dair.pair.com/hifi/Uniclasfam.jpg Quote Link to comment Share on other sites More sharing options...
Q-Man Posted January 30, 2002 Share Posted January 30, 2002 hifi, That isn't the classic. It's similar, and looks easier to build and does use the same drivers. I've never seen that version before. I'll have to try to post some pictures later on. Q. ------------------ Q-Man Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.