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Old 19th July 2005, 03:33 PM   #11
regal is offline regal  United States
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The internal amp in my daughters circa 1983 sony TV died so I bought a sonic T amp and a pair of Fostex 127's. I just built the standard BR enclosures and hooked everything up to a Tosh 4960 DVD player so she could watch movies. I didn't give it much thought till one day she was out of town and I loaded some blues guitar CD and sat down for a listen. I am still stunned at how well this combo sounded. I have never heard guitar sound this good.


So now I am looking to build another Fostex/SI combo for my room.
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Old 20th July 2005, 01:29 PM   #12
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Scott

The reason I say the cabs are a little small, is I can barely squeeze the driver into the hole, as the width of the cab is too narrow. If I were to build these again, I'd increase the width and depth a bit. In addition, TC recommended that you chop the back of the cabs down a little, so they angle from the front in order to open the mouth up. He said it seems to help.

Cheers!
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Old 20th July 2005, 02:49 PM   #13
dmason is offline dmason  United States
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one1speed,

Scottmoose and I had discussed the 168 in the BIB a couple months ago; I went through the too large driver (flange) issue as well, and was not entirely happy with the less than ideal Q of the driver, nor the fact that it stuck out about a 1/4" or so on both sides.... Does anyone have an idea of what Q range would be a better substitue, or suggestions for current drivers for BIB, while we are on the topic?
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Old 20th July 2005, 03:28 PM   #14
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I'll add a couple thoughts here. Once broken in, I think the drivers sounds far too good in the BIB box. Note that I did cut a round baffle to mount the driver on, similar in style to what TC does, but not nearly as nice. But it does help the driver to mount in the box. With the newer gainclone amp I'm using, I find the bass quite satisfying. One other thought may be to add series resistance to raise the Q a bit. But personally, I don't mind the balance as it stands. I am using two 8" servoed subs with this set up crossed in fairly low.

I posted this before, but the driver sounds amazing in the Supravox TQWT box. I've heard it in one built by TC. It's not supposed to work, but sounds amazing! Lots of real bass.
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Old 20th July 2005, 04:21 PM   #15
dmason is offline dmason  United States
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Interesting indeed. TC had mentioned this to me, but I couldn't get my head around that one. Specifically, do you mean the load for the SUpravox 165LB? I only ever tried the 168Sig in the 24L "Moai" load, and I didn't think it served this driver well enough. I think alot of people walk away from this one, under about 1000 hours cook time, the 168 is quite forgettable, but AFTER that, it is pretty hard to beat, and especially with T amps and GC's. So, which Supravox, and I shall build and report.
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Old 20th July 2005, 06:13 PM   #16
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Here you go. I'm not sure if it's on the US site, I always get it from the French site. Let us know how you like it, I'm still contemplating this one with subs versus the 2-way type of system.

When I chatted with TC about it, he had another set of these cabs around, must have built a couple pair when he built the first pair I heard. Someone had used the FE206E in the second pair and was reporting great results. Again, it shouldn't work, but...

http://www.supravox.fr/kits.htm

note: Scroll down under TQWT to "TQWT pour les 215," the last link in that section with the rear, side ports. Enjoy!
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Old 20th July 2005, 06:27 PM   #17
dmason is offline dmason  United States
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That was what I didnt get: I would have thought that the TQW for the 165LB would be ~more appropriate. In fact the Q of the LB was ~closer"" not that that seems to be the issue here. Size was, as I recall.

The bigger 215 one is pretty damn big. I still can't see the 168Sig having enough jam to make that thing work. I may have something coming that could be even better still. 200mm, Q=.45, more Xmax, higher SPL, (97), and apparently sounds even BETTER with T amps.
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Old 20th July 2005, 06:36 PM   #18
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Care to share what it is?? Almost sounds like one of the PHY drivers.
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Old 20th July 2005, 06:57 PM   #19
dmason is offline dmason  United States
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I'm not at liberty to discuss it at this point, but I do think the TQWT 215 might be "filled" by it nicely, quite possibly better than any Supravox

. Tommy Tube on Audio Salem has the 206E in one TC built, and truly loves it, ....back on topic, -he powers it with the 30 watt Teac-modified-into-Wunderamp by Vinnie Rossi.... Quite a nice alignment the 215, very close in size to the Fostex Rx horns for the 166esr which unfortunately are relegated to my garage. which is frustrating, as they wouldnt be making it upstairs at any rate.. Seems my long addiction to nice big speakers isn't well served by life in my seaside pavilion, and I am beginning to get too old to re-think, it seems, -to be interested in all this "small" stuff. In speakers, B=B
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Old 21st July 2005, 09:44 AM   #20
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Hi again Dan how's it going? Sorry I haven't been in touch for a while, but not much to report around here for a while (too busy to build anything worth talking about!) -Between .3 and .45 would be my choice. That new driver we've been discussing privately should be rather impressive -I'm looking forward to that one!

Yes, I've advocated a small baffle in the past for the Sigma in the BIB box for this very reason of driver size. My roughed up pair for these drivers were 66" x 7" x 18" (External HxWxD). A little series resistance would be good, though I was surprised how warm they sounded out of the box, so to speak. With a low Q driver, I'd keep So relatively low, increase it to around S0 = Sd or fractionally less for a higher Q driver. The FF165K (I've measured its Q at around 0.39 -way off the 0.2 mentioned in its spec. sheet by Fostex) seems ideal, though I'd like a little more HF extension. The good old FE167E should be worth a shot too amongst others.
I haven't heard Terry mention the idea of cutting away the rear baffle at an angle before -sounds interesting; I'll have to try that one out.
Cheers for now
Scott
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