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Old 9th January 2006, 09:16 PM   #1
LaserL is offline LaserL  Norway
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Question TangBand 8"

Hi
Do any of you have any experience with the W8-740C woofer
from TangBand.
I’m weary interested in this Speaker and it would be nice if you
gave me your experience with this speaker.


If you have a link to a DIY project with this speaker please post.
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Old 26th February 2006, 05:01 PM   #2
boly is offline boly  Norway
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Go to video, scroll down to tangband, and lock at the sub u want.

http://www.realmofexcursion.com/
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Old 26th February 2006, 05:23 PM   #3
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I am using the 740C with two 8" drones and am happy. It's a good woofer for the money especially now that it's on sale at PE. I bought mine over a year ago and the price has gone up since then so it's nice to see it on sale for those who want to try it.
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Old 26th February 2006, 05:28 PM   #4
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I saw that on sale at PE this weekend. It has a foam surround. Nuff said. The useful lifetime of foam is better matched to beer than speaker drivers.

If people would stop buying that garbage, they'd stop manufacturing it. Hello!
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Old 26th February 2006, 09:50 PM   #5
boly is offline boly  Norway
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They sell Tangband here in Norway: http://creativehifi.com/catalog/
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Old 26th February 2006, 10:13 PM   #6
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Quote:
Originally posted by rcavictim
The useful lifetime of foam is better matched to beer than speaker drivers.
While I like the humour, I've never had a foam give out on me while I was still using the speaker. I've noticed you get 15 years or more from foam, let alone a treated foam so I've not made that a consideration. I've heard there are those that consider the foam to be better sonically than the synthetic rubbers but I'll leave that to the experts, I don't have an opinion.

Quote:
[i]If people would stop buying that garbage, they'd stop manufacturing it. Hello! [/B]
Hello!, that garbage is just right for some people, you know, like those on a limited budget or those whose ears aren't golden, that don't really have a use for anything more?

Actually, it's not a bad little woofer if you put 20 watts or less into it, you know, the volume most people listen?

Oh yee, so fast to judge. It may not be a woofer worth writing home about but it's fine for a lot of people. Beats the heck out of what was available 20 years ago for the same price.
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Old 26th February 2006, 11:01 PM   #7
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mine tb woofer is on its way...

I plugged the numbers into winisd and i get a box (3/4" mdf) ext dimensions of 9" by 14" by 22" (approx) with an 11" long 3" dia port...

Is it me or does that port seem a little short to be tuned to 30ish hertz?

Also, should i try and tune the sub lower than 30hz since i will be using the mcm 150 watt plate amp (back in stock, 500 some left...) with 6db bass boost at 30 hz?

If anyone has a proven design that will work well for this sub please by all means post it...
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Old 27th February 2006, 02:35 AM   #8
simon5 is offline simon5  Canada
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rcavictim, just find us cheap rubber that will do 1 inch peak to peak...

Then, for real subwoofer drivers, find us rubber that can do ~4 to 5 inches peak to peak...
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Old 27th February 2006, 05:48 AM   #9
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Quote:
Originally posted by simon5
rcavictim, just find us cheap rubber that will do 1 inch peak to peak...

Then, for real subwoofer drivers, find us rubber that can do ~4 to 5 inches peak to peak...

Source surround materials? I don't have to. I'm not in the driver manufacturing business. As a consumer I have purchased drivers which had foam surrounds brand new and within my life so far they have completely rotted to uselesness. I don't like to have to spend my money to buy something more than once. I do not consider loudspeaker drivers as consumable items like tubes. I have 50 year old Altec drivers that are practically as good as the day they were made.

Now if you are punishing a driver to 4 and five inches cone excursion, that probably IS a consumable item. I think I'd be looking at improving my acoustic cone loading if I had to go to those extremes. I can't imagine the fidelity could be very good.
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Old 27th February 2006, 06:24 AM   #10
simon5 is offline simon5  Canada
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50 yrs old and still good? Nice! But I'm 100% sure that the T/S parameters are shifted alot vs. original.

Rubber got problems too, mostly with increasing stiffness over time.

BTW foam surrounds can be replaced for a very small fee. You also get the new foam which last longer. Using a foam surround also help you to reach higher efficiency numbers.

Anything with moving parts doesn't last a lifetime. Also, any speaker manufactured more than ~15 years ago are outdated. Today with new technology you can find/build something better for cheaper.
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