Freaky 1" driver

JohnR · « **on:** 22 Jan 2004, 03:54 am »

Check out the aurasound 1" driver about half way down this page!

http://www.madisound.com/aurasound.html

They don't go down low, obviously (f3 = 220Hz), but they look like they would make a killer subsat system or micro-HT.

Also check out the 3" driver. 5mm Xmax

Somebody please buy some and try them out. I wanna know! Hell I might get some myself

Brad · « **Reply #1 on:** 22 Jan 2004, 03:44 pm »

That might make for a nice hidden, in-wall rear surround setup.
Sensitivity looks pretty low though.

http://www.glug.com/disclaimer/

-bb

JoshK · « **Reply #2 on:** 22 Jan 2004, 03:58 pm »

You could make Bose killers with those! Haha... might be what I am looking for, in my HT setup that I am trying to work out.

Andrikos · « **Reply #3 on:** 22 Jan 2004, 04:29 pm »

For a really nice 3" full range, check out the TangBand W3-871S.

Looks good and sounds great too:

http://www.creativesound.ca/details.php?model=W3871S

http://www.nuera-acoustic.ca/products/datasheets/w3-871s.jpg

Only $12 each, a steal IMHO

JoshK · « **Reply #4 on:** 22 Jan 2004, 05:22 pm »

The 1"ers might be fun to make a line array out of with a midbass driver on the bottom.

JohnR · « **Reply #5 on:** 22 Jan 2004, 05:42 pm »

Ah, but Andrikos, this one is quite a different animal

I spent a bit of time with Unibox, I'm considering getting some. My idea for the 1" driver is to have a separate woofer (per side), for a desk/office system. You could put one box on the desk and one on the wall. Wouldn't play loud.

Hank · « **Reply #6 on:** 22 Jan 2004, 05:53 pm »

I use that TB W3871S to build my BozeBusters. It's got the best small full-range driver sound that I've heard. Those little 1" jobs would be interesting to play with. Use an electrical swith box as an enclosure to mount 'em in the wall maybe. And, as you said, for a bare minimum footprint desktop system. All three are a bit pricey though.

JohnR · « **Reply #7 on:** 22 Jan 2004, 06:32 pm »

Um, OK. Tangband rules.

By the way, what did you use for your subwoofer? It's a bit hard to find a driver that will play low in a small box, I found one candidate but it needs a bunch of eq.

EProvenzano · « **Reply #8 on:** 23 Jan 2004, 03:31 am »

I'm sorry for taking this thread a bit off topic but I have a question about those TB W3-871S drivers.

I got thinking that a row of 4 or 8 of those drivers might make a decent main speaker for my HT, very cheaply.
After reading about line source speakers on the GR forum I got thinking...when does a line of drivers behave like a 'line source' and have cancelation above and below the line? Would a short row of these TB drivers have drop out above and below the row?

Thanks

Andrikos · « **Reply #9 on:** 23 Jan 2004, 04:47 am »

EProvenzano,
I was thinking the exact same thing a few months back.
But, then again, I didn't know that much back then...

It is feasible but the results will not be satisfactory because of the comb-filtering effect.
The maximum dimension of a driver in a line array configuration to play at up to 20kHz awithout comb-filtering is 1.3". The center to center spacing for the W3-871S is about 3.5".
Jim Griffin is an authority in this (search for his white paper) and he has designed a line array with 16 W3-871S (needles) and a single ribbon tweeter. This is not a true line array per-se but it might fit what you want to achieve.
Good luck.
PS My line array design (under construction) involves 8 Vifa PL18W09's and 8 BG Neo8 PDR's in a two way configuration.

Andrikos · « **Reply #10 on:** 23 Jan 2004, 05:27 am »

Oh yeah, Jim Griffin's white paper:
http://www.audiodiycentral.com/resource/pdf/nflawp.pdf
enjoy!

JohnR · « **Reply #11 on:** 23 Jan 2004, 08:14 am »

Quote from: Andrikos

PS My line array design (under construction) involves 8 Vifa PL18W09's and 8 BG Neo8 PDR's in a two way configuration.

Cool! Please keep us posted on your progress!

For those interested in array-like things using Tangbands, you might also find the "Spires" kit interesting:

http://www.creativesound.ca/images/product/SPIRES.jpg">

http://www.creativesound.ca/details.php?model=SPIRES

A hundred bucks a side, how can you go wrong? Someone please build it and report back

Now, back to the Aurasound! The thing about this driver (the 3" one) is that it has *** 5 mm *** of Xmax in each direction. That is *ten times* what the Tangband has. Now of course that doesn't say anything about how it sounds, but it *does* mean that the applications of this driver will likely be very different.

I sent Madisound a request for a shipping quote today.... seeing as how I'm on the other side of the universe now there'll be a pound or two of flesh to sacrifice to the great Fedex in the sky, but we'll see, perhaps I willl get my paws on a few of these micro-beasts soon

Tonto Yoder · « **Reply #12 on:** 23 Jan 2004, 12:18 pm »

Quote from: JohnR

For those interested in array-like things using Tangbands, you might also find the "Spires" kit interesting:

I see your Spire and raise you a Seventh Veil--
http://www.seventh-veil.com/index.htm

Commercially available speakers using the Bandor 2" full-range speakers in a similar line array. I've tried to find a price on the Bandor drivers alone, but never found one.

JohnR · « **Reply #13 on:** 23 Jan 2004, 12:31 pm »

I'd guess the Bandor 2" drivers to cost similar to the Jordan JX53, which is (Hank! Cover your eyes!!) a bit over a hundred apiece.

Tonto Yoder · « **Reply #14 on:** 23 Jan 2004, 12:43 pm »

Quote from: JohnR

I'd guess the Bandor 2" drivers to cost similar to the Jordan JX53, which is (Hank! Cover your eyes!!) a bit over a hundred apiece.

That was what I always feared, but not surprising given the designer's connection with Jordan--
http://www.bandor.com/history_frame.htm

Hank · « **Reply #15 on:** 23 Jan 2004, 01:21 pm »

Quote

I'd guess the Bandor 2" drivers to cost similar to the Jordan JX53, which is (Hank! Cover your eyes!!) a bit over a hundred apiece

Aayyeee!

You've got me figured out - I believe in value, bang-for-the-buck, seeking low-cost, high-performing drivers, etc, etc. Sometimes though, you can spend quite a bit, but get world-class sound. Consider the current cost of B-G ribbons. But, if you use them in a DIY speaker, you can have a spiffy speaker that rivals commercial product at a fraction of the cost. BTW, I'm not pushing B-G; my statement could apply to other drivers,etc.
Yes, these new Aura drivers are very interesting, and TB has a couple of new high Xmax drivers - Allan posted something about them recently...now which forum was that?...the cumulative effects of tequila may not be all that good...

Andrikos · « **Reply #16 on:** 23 Jan 2004, 03:57 pm »

Quote from: Tonto Yoder

I see your Spire and raise you a Seventh Veil--
http://www.seventh-veil.com/index.htm

Tonto,
I see your seventh veil and I raise it to this DIY masterpiece by "Tomahack":

http://www.diyaudio.com/forums/showthread.php?postid=67864

If my line array ends up looking half as good as these babies, I'll be VERY happy!

Tonto Yoder · « **Reply #17 on:** 23 Jan 2004, 05:20 pm »

Quote from: Andrikos

Quote from: Tonto Yoder
I see your Spire and raise you a Seventh Veil--
http://www.seventh-veil.com/index.htm

Tonto,
I see your seventh veil and I raise it to this DIY masterpiece by "Tomahack":

I fold.

JohnR · « **Reply #18 on:** 24 Jan 2004, 05:44 am »

OK, since Hank and Brian keep hassling me to use the TB W3-871s I went down to the workship this morning and in a cloud of sawdust and noise I made these. Fast worker aren't I??

Now, back to the Aurasound drivers again

I modeled the 3" driver and if you put four of them together and feed them with 100W you get 107 dB from 100 Hz up. Now that's not bad for a cabinet that could be made in a size, say, 20" high by 5" wide by 12" deep! Ported in the same size box, you get strong output down to nearly 40 Hz

JohnR · « **Reply #19 on:** 25 Jan 2004, 01:06 am »

I'm thinking a good use for the 3" driver would be in a micro-HT. One for each speaker, and for the L/R/C xover to an Audax 10 mm up high. Then get a couple of these new 6.5" TBs for subs