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Old 22nd June 2008, 05:14 AM   #1
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Default TB 2" Full Ranges

Hey guys, I've been looking at a couple of the TB 2" widebanders for an upcoming project, and have a question about their advertised sensitivities.

http://www.partsexpress.com/pe/showd...number=264-805

http://www.partsexpress.com/pe/showd...number=264-808

Sensitivity in the 85-86 range seems a little high for such a small driver. On the flip side, they are fairly useless under about 500 hz, even though they boast an Fs around 150 hz, so it's possible that 85-86 db is realistic above 500 hz.

So, has anybody used either of these drivers, and can give a good sensitivity number, or should I trust Tang Band, which is rather notorious for inaccurate specs?

If not, I'll buy a couple and test them myself, but I'd like to save the $30.00 if possible if they're grossly overrated.
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Old 22nd June 2008, 05:44 AM   #2
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Default TB 2" Full Ranges

Hi there Mr Minivanman.


I think they look okay but a PP cone might be bit heavy for such a small speaker.

I have some 3" drivers laying about sound allright, but up to 15 K not all the way up.

Ive seen some other small 2" speakers before and have some here at home that sound quite nice, but any Bass response will be hard.
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Old 22nd June 2008, 08:51 AM   #3
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Oh, they're going to be used as dedicated midranges in a 3-way tower. I haven't worked out the crossover, but I could go as high as 1khz for a high pass. I'll also be using a tweeter from about 10khz up, so I'm not asking a whole lot from them.

What I'm actually looking for is a good performing, but not costly 2-3" driver that will do 500 hz up to about 10k. I'll probably cross lower for better off-axis response, but I haven't figured it all out yet. I would like a sensitivity per driver of 85-86 db, or even higher is possible. A dome is not feasible for this application.
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Old 22nd June 2008, 09:23 AM   #4
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How about these?

http://www.swanspeaker.com/product/htm/view.asp?id=121

They also a gold coloured 2 inch and 3 inch.
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Old 22nd June 2008, 02:50 PM   #5
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Quote:
Originally posted by richie00boy
How about these?

http://www.swanspeaker.com/product/htm/view.asp?id=121

They also a gold coloured 2 inch and 3 inch.
Sensitivity is way too low on the HiVi offerings. I understand bass response is better, but I'm not looking for that. I also need 4 ohm drivers, as I'll be running 2 of them in series per speaker, and I need a final 8 ohm load. At least that is what I would prefer.

The overall design is going to be a WWMTMWW setup using Dayton RS125s for the low end. Since combined, the Daytons will have a sensitivity of around 89 db, I'd like two small midranges that will sum to around 89 as well. They need to be small for several reasons that I won't go into.
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Old 22nd June 2008, 02:56 PM   #6
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Quote:
Sensitivity in the 85-86 range seems a little high for such a small driver.
The T/S-data and published FR plot seems IMO to be quite consistent.

b

1(1)
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Old 22nd June 2008, 03:29 PM   #7
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Quote:
Originally posted by bjorno


The T/S-data and published FR plot seems IMO to be quite consistent.

b

1(1)
Great, thanks.

I just ordered a couple off 852s off of ebay. Found them for for $23.00 shipped for the pair, so I won't be out much if they don't work out.

Again, thanks.
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