D-MAN Posted February 22, 2006 Author Share Posted February 22, 2006 Some "during construction" pics. Quote Link to comment Share on other sites More sharing options...
D-MAN Posted February 22, 2006 Author Share Posted February 22, 2006 A Tannoy GRF - I hope the above ain't one of these, because it looks like alot of work for a back-loaded horn! But maybe... Quote Link to comment Share on other sites More sharing options...
D-MAN Posted February 22, 2006 Author Share Posted February 22, 2006 Tannoy "Autograph" cabinet - and you thought the Khorn was complicated?! This even makes a Hartsfield seem within reason. The British love their back-loaded horns. I've never heard one. Maybe there is something to it, though... one of my concerns is why take a chance on that large of a cabinet for a back-loaded design when we all know EXACTLY what a front-loaded design does in the same amount of floor space. I've always been wary of BL horns for that reason. Perhaps if they were more plentiful in the US, I would have heard one. Why this didn;t catch on here I don't know for sure... Quote Link to comment Share on other sites More sharing options...
Duke Spinner Posted February 22, 2006 Share Posted February 22, 2006 Another mysterious DIY Altec (wish I took note of what it was I saved)... Model 19 Klone Quote Link to comment Share on other sites More sharing options...
D-MAN Posted February 22, 2006 Author Share Posted February 22, 2006 Tannoy GRF layout - this one is promising! I'm starting to get over my gag reflex and subsequent revulsion caused by an excessive number of parts. Quote Link to comment Share on other sites More sharing options...
Duke Spinner Posted February 22, 2006 Share Posted February 22, 2006 i heard that particular design, maybe 10 years ago ... it wasn't all that impressive i think the driver was a Red... just like the 604x .. when driven hard with modern music, it suffered from a high amount of IM the intent probably was to gain all the efficiency they could by horn loading the back of the woof you certainly can't horn load / fold using a concentric, other than an A-7 design ... Quote Link to comment Share on other sites More sharing options...
D-MAN Posted February 22, 2006 Author Share Posted February 22, 2006 A 50Hz Fc front-loaded horn - sort of reminds me of the movie "Brazil"... Hats off to the DIY'ers! Quote Link to comment Share on other sites More sharing options...
D-MAN Posted February 22, 2006 Author Share Posted February 22, 2006 'Nother. Quote Link to comment Share on other sites More sharing options...
D-MAN Posted February 22, 2006 Author Share Posted February 22, 2006 Completed pic of same 50Hz horn. Now THAT's a FOOTPRINT - but notice the space its in - purpose built from the ground up! Admirable. Quote Link to comment Share on other sites More sharing options...
D-MAN Posted February 22, 2006 Author Share Posted February 22, 2006 i heard that particular design, maybe 10 years ago ... it wasn't all that impressive i think the driver was a Red... just like the 604x .. when driven hard with modern music, it suffered from a high amount of IM the intent probably was to gain all the efficiency they could by horn loading the back of the woof you certainly can't horn load / fold using a concentric, other than an A-7 design ... That's too bad - I was wondering if it would be worth the work. Evidently not. But it looks pretty cool anyway! It figures the IM is out of hand, two unbalanced. In the "old days" there was a tendancy to damp the front of the cone with a terminated air column and a horn at the rear, to keep things more "aligned". I think the required overall cabinet size that entailed killed them off, too. A shorter rear-horn might lessen the IM to a reasonable degree. There is the complexity question again - why choose extended LF response over audible distortion? I suspect the answer might be low power handling capability - perhaps using stock components, it just doesn't get loud enough to kick the distortion up to an audible amount. Other than that, I don't know... DM Quote Link to comment Share on other sites More sharing options...
ajsons Posted February 22, 2006 Share Posted February 22, 2006 I don't think they've heard of the K.I.S.S. principle. Quote Link to comment Share on other sites More sharing options...
ajsons Posted February 22, 2006 Share Posted February 22, 2006 Front. Quote Link to comment Share on other sites More sharing options...
Duke Spinner Posted February 23, 2006 Share Posted February 23, 2006 thanks for the Speakerlab plans , AJ Steve has started to build them .... Quote Link to comment Share on other sites More sharing options...
ajsons Posted February 23, 2006 Share Posted February 23, 2006 No problem, Duke. Tell Steve to post some pictures. I bought a new Ridgid table saw last weekend, just like Tom Mobley's. I'll be busy like Steve. Armando Quote Link to comment Share on other sites More sharing options...
DrWho Posted February 23, 2006 Share Posted February 23, 2006 So what kind of horn is on these guys? I've seem them popping up quite a bit lateley... Quote Link to comment Share on other sites More sharing options...
m00n Posted February 23, 2006 Share Posted February 23, 2006 How bout this little DIY project ... Oh man! I would love to hear that! Quote Link to comment Share on other sites More sharing options...
D-MAN Posted February 23, 2006 Author Share Posted February 23, 2006 I believe that those are TAD. The guy recently sold the cabinets without them - i.e., he kept the TADS. DM Quote Link to comment Share on other sites More sharing options...
DrWho Posted February 23, 2006 Share Posted February 23, 2006 hmmm, I don't think it's TAD: http://www.pioneerelectronics.com/pna/product/album/0,,2076_4217,00.html Quote Link to comment Share on other sites More sharing options...
D-MAN Posted February 23, 2006 Author Share Posted February 23, 2006 That IS a TAD wood horn and driver - they guy said they were TAD's, they look like TADS - what else do you need? The mounting flange is questionable as it doesn't show in the TAD web pic (which is clearly cropped anyway), but who knows - not enough evidence to go either way on that. TAD no longer makes them anyway, so who knows how many derivations have occured and what version is pictured on the TAD webpage. Could be a clone, but then, based on the quality of cabinet work and equipment in the above speaker pic, why? Certainly could afford the genuine article, agreed? So why would the owner lie about it? Also why would he keep the horns/drivers if they were just clones? Clearly could make more or easily afford to have them made while increasing the salability of the speakers being sold. THINK ABOUT IT!*** THIS ITEM IS DISCONTINUED *** The TAD TH-4001 is a stabilized dispersion horn designed specifically for use with the TD-4001 high-frequency driver. It allows you to exploit the wide frequency response of this unit, providing excellent dispersion of all frequencies, including high frequencies above 10kHz, a feat rarely achieved by large horns. The dispersion pattern is optimized, based on our measurements of actual room acoustics. As a result, the entire output of the TD-4001 is uniformly distributed over a large area. High resolution is another result of our acoustic engineering. The horn is made of genuine maple, for clean, rich, natural sound. http://www.pioneerelectronics.com/pna/product/detail/0,,2076_4217_37181,00.htmlDM Quote Link to comment Share on other sites More sharing options...
djk Posted February 23, 2006 Share Posted February 23, 2006 Those are not TAD horns. Andre at E-speakers can get you in touch with the guy that makes them, he lives in Canada. They are on eBay all the time. 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.