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https://www.decware.com/cgi-bin/yabb22/YaBB.pl SPEAKER FORUMS >> HDT >> HDT 1.5s?!?! https://www.decware.com/cgi-bin/yabb22/YaBB.pl?num=1145018533 Message started by RobLikesTubes on 04/14/06 at 12:42:13 |
Title: HDT 1.5s?!?! Post by RobLikesTubes on 04/14/06 at 12:42:13 After a bunch of pondering, I decided to take a small, reversible plunge and purchase a pair of the Aurum Cantus G2Si ribbon tweeter to add to the HDT via Brad's suggestion. ![]() They arrived Tuesday morning, and I wired them up with 1uf Mondorf caps in parallel using just-long-enough Teflon coated pure silver hook-up wire. They are mounted on the front edge of the HDTs for now using heavy-duty Velcro strips cut to size. I ran them for 5hrs on/5hrs off all of tuesday afternoon, all day wednesday, and most of yesterday. Last night I settled-in for some listening. I wasn't sure exactly what to expect, and tried to keep my expectations at reasonable levels, even preparing myself to be slightly disappointed if results were such. I am happy to report that I am very, very, pleased with the results !! Thanks Brad ! What I was hoping for was that little extra extension on the top, primarily for cymbals, other percussion, and that gleam on the top end of acoustic guitar and wind instruments, and incidental sibilants. Things that I know had been audibly absent from a lot of recordings I am intimately familiar with. This tweeter delivers that nicely, realistically, and cleanly. What I wasn't expecting was how well they would integrate with the HDT particularly in the imaging department. I am a drummer, and have a thing for well recorded kits. Not that the HDTs didn't do a good job on their own, it's just that the placement in the soundstage of various cymbals and effects always seemed a little off to me - they tended to either be pushed a little too close to the speakers themselves, or, when having a good center image, didn't appear where they should in height/depth. With these tweeters, drummers who I am very familiar with their set-ups, are just right. Hi-hats appear just right of center, and you can feel the space between the hi-hat and snare. On a drummer like Carter Beauford from Dave Matthews Band(who has a large kit with tons of cymbals) each one appears in the soundstage as it does on his kit. He plays left-handed on a kit oriented right-handed. He uses two ride cymbals mounted to his left, and pretty high up. I can now sense that height and space perfectly in relation to the rest of his kit, where previously, those parts were not nearly as well defined. The sound/feel of wood stick hitting metal cymbal is much more defined and stunningly real. Other recordings that had things like triangles, bells, etc.. that were always very harsh with previous dome tweeters, and rather understated(and in some cases barely audible) on the HDTs alone, are now "there" - but in a very clean and realistic sounding portrayal. For under $200, this is a killer, and completely reversible tweak. I am sure I will be experimenting with some placement options. I recently heard a homemade pair of speakers using a full-ranger and a similar tweeter in a rear-ambience configuration that was pretty impressive. I am still planning on getting a pair of the new DFR8s for comparison to the original Fostex, and see if the 2GSi is needed. So far, the only drawback I've experienced is a little harshness/over-emphasized "sss"ibilants on some female vocals. Some of this may still be break-in of the tweeters and caps, and if not, the benefits I am getting so far outweigh that minor draw-back. Highly recommended !! So, do we call this a HDT 1.5 ? ??? |
Title: Re: HDT 1.5s?!?! Post by Zygi on 04/14/06 at 14:09:58 Rob, I believe a whizzer-less dfr-8 and the Aurum Cantus with a 1mF cap would be perfect. Not that might be a HDT1.5 BobZ |
Title: Re: HDT 1.5s?!?! Post by RobLikesTubes on 04/14/06 at 14:20:00 Sounds like a plan ! |
Title: Re: HDT 1.5s?!?! Post by gnat leader on 04/14/06 at 18:18:50 Rob, I found the G2Si's to be slightly bright/grainy at first but this mellowed out and became more smooth over time. I'm glad you like them, and at least it confirms what I'm hearing. You certainly are better at verbalizing it given your knowledge as a drummer/musician. Have you noticed how much better a bowed instrument sounds? I found Cello's (amoung other things) to sound way more realistic with this tweeter added to the HDT. |
Title: Re: HDT 1.5s?!?! Post by gnat leader on 04/14/06 at 18:25:09 Btw, Zygi, if you ever end up making a HDT 1.5 you should investigate the potential of using bamboo ply - or at least bamboo veneer. I'm not sure how much it costs, but it looks pretty cool and it's as hard as maple... http://www.plyboo.com [glb]I prob couldn't afford the expresso machine...---> ;-)[/glb] ![]() ![]() |
Title: Re: HDT 1.5s?!?! Post by gnat leader on 04/15/06 at 02:35:09 Zygi wrote on 04/14/06 at 14:09:58:
Zygi, what makes you think this? Have you ever removed a whizzer? I have no idea what to expect in change of frequency response when this is done. Do you know what frequency range is being produced by the whizzer as apposed to the main cone? Now that's a scary non-reversible mod!!! |
Title: Re: HDT 1.5s?!?! Post by Zygi on 04/15/06 at 03:56:00 Brad, Its scarry for sure, I haven't tried it on the 8" , I have on the 6 1/2" and it worked very good. The reason I think it should be removed is phasing/ cancellation and two sources of highs can screw with the imaging. Sense I haven't tried it with the 8" (yet) one way to check is to squat down then slowly stand up, if its an issue you'll hear the cancellation, if you don't hear any change, then it should be ok. Brad try the bambo and let me know how you like it, It is very tough and hard, I thought I saw a close up of it, if it would take a a dye it could be made to look like Macassar Ebony. Bobz |
Title: Re: HDT 1.5s?!?! Post by gnat leader on 04/15/06 at 05:09:54 Zygi, what were the details you doing the whizzer-ectomy? You did it to a 6" fostex? And put it in which cabinet? And combined it with what tweeter crossed over how? Just curious. thx, -Brad- |
Title: Re: HDT 1.5s?!?! Post by Zygi on 04/15/06 at 07:07:47 Brad, No tweeter, another 6 1/2' with whizzer intact. No crossover other than mechanical. Bobz |
Title: Re: HDT 1.5s?!?! Post by Chris K on 04/15/06 at 13:40:00 Zygi wrote on 04/15/06 at 07:07:47:
:) |
Title: Re: HDT 1.5s?!?! Post by RobLikesTubes on 04/15/06 at 18:02:43 hmmm, perhaps I'll order the DFR8s, and when they arrive send back the original 206Es for donut modification and wizzerectomy. By the time they return, the DFR8s should be well broken-in, and I can determine if the DFR8 stock alone is the ticket, or to send them in to be nuetered.. ??? |
Title: Re: HDT 1.5s?!?! Post by RobLikesTubes on 04/25/06 at 22:22:16 Well, the Aurum Canti have been in place for almost two weeks at this point. I installed them using a pair of banana adapters with screw terminals for easy plug-in/un-plug to compare with and without. After listening to over 100 favorite recordings both with, and without ........they are staying. I'm ordering the DFR8s this week, and will send the original FE206Es for DFR8-i-fication and whizzerectomy........ Stay tuned.................. |
Title: Re: HDT 1.5s?!?! Post by Brian on 04/26/06 at 02:27:46 Exciting stuff! When the DFR8s are used without their whizzers, will they be used with the Decware phase guide? It seems to be a kind of resonant tweeter, so I would guess it shall not be used. |
Title: Re: HDT 1.5s?!?! Post by Zygi on 04/27/06 at 05:00:54 Rob, Brian, Iv'e never done the whizzerectomy on the 206's or the DFR8's. I've only done it to the 166's I think if you sent them to Steve for an ectomy he'd probably wonder what the hell you were talking about. The main reason I did the whizzerectomy on the 166's was I was going to tear them down to make a radial driver out of them, Steve with his infinate wisdom told me to experiemnt with them as I was tearing them down. Thats were the idea of the egg shaped holes in the whizzer came from, which I then tried removing the whizzer all together, I have done 12 drivers so far, all still sound great. I have not gotten to try it as a radial driver yet. I did about a year ago cut down the 206 driver and madea radial out of it. 96dB of pure YUK!!! That was money and time well spent. BobZ |
Title: Re: HDT 1.5s?!?! Post by franksmith on 05/01/06 at 21:04:42 I'm about to do a wizerectomy on a new pair of fe206e and see the change it could produce. Since I'm using a tweeter to complete the fe206em (almost a dfr-8) I can easily change the crossing point to compensate for the wizzerless driver. Please let us know the results of the operation :) |
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