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Old 24th December 2010, 11:05 AM   #1
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Default Tang Band W3-1797 S flat diaphram 'full range'

Anyone used these? They are 3" and have a flat aluminium diaphram (and a horrible grill). It takes 50 w max but has just 1 mm xmax (seems a bit odd)

The plot shows a very gentle rise above 10khz which is ideal.

Here is an interesting design (japanese?) using the unit
V‚‚AUDIO‚̐ŠE‚‘n‚

Here it is on parts express

Tang Band W3-1797S 3" Neodymium Midrange Driver | Parts-Express.com

would love to hear more about them if anyone has experience- they get a good review in a speaker design costing $12,000 here http://www.6moons.com/audioreviews/boenicke2/sls.html

Last edited by Bill poster; 24th December 2010 at 11:10 AM.
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Old 24th December 2010, 11:52 AM   #2
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Hello,
the grill is a part of the function.
merry Xmax
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Old 24th December 2010, 11:55 AM   #3
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Quote:
Originally Posted by hm View Post
Hello,
the grill is a part of the function.
merry Xmax
lol whats its function? apart from prodding fingers
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Old 24th December 2010, 12:32 PM   #4
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As a designated midrange driver, the 1mm Xmax should be plenty, as it shouldn't see any low frequencies. One of the reviewers on Parts Express didn't seem to know that.

The grille may help to control dispersion patterns (thus shaping the power response), but I'm not sure and could be wrong... I've heard of similar ideas being used before, that's all.

Chris
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Old 24th December 2010, 01:38 PM   #5
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Zaph reviewed its larger brother favourably, all except for a resonance that, depending on how picky you are greatly limits its use as a full range.

If this is a result of the flat cone, then the little version probably has something similar too, although most likely at a higher frequency.

You can find his review on his blog.
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Old 24th December 2010, 01:45 PM   #6
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the response looks good - I don't think it suffers the same issue as the large version. .a little wobbly but no break up per se where it matters

read that review too.. sounded like a prize plum

regarding where to x/o, would 180-200 hz be ok?

Last edited by Bill poster; 24th December 2010 at 01:48 PM.
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Old 24th December 2010, 02:32 PM   #7
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That crossover would probably be okay, so long as it's a steep enough slope. First order would likely not give enough power handling for higher volume listening.
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Old 24th December 2010, 02:38 PM   #8
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If you look on the TB website both the W3 and the W4 have good looking frequency responses. The W4 has a slight impedance wobble at 2k which coincides with Zaph's measurements. The W3 has a wobble at about 3.2k which could indicate a similar resonance and HD peak issue similar to the W4.

TBs own graphs tend to be skewed towards making sales rather then absolute honesty.

4th order acoustic @ 200hz shouldn't be a problem, but if it has a similar HD peak you'd want to cross this driver steeply at about 1500hz to a capable tweeter. I'd buy with caution and be prepared to measure the thing before using it. If they were somewhat cheaper I'd buy one and measure it myself.
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Old 24th December 2010, 06:33 PM   #9
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Default Bill

lol whats its function? apart from prodding fingers

lol no knowledge?

it is a lens.
look the dispersion,
here the W4

both ideal for my Mini Posaune and Kornett.
Bass down 34 Hz, bipol double horn.
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File Type: jpg W4-1757S_off_axis_response.JPG (74.5 KB, 916 views)
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Old 26th December 2010, 08:52 PM   #10
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here in 10 000$ Loudspeakers and no aditional Tweet

6moons audio reviews: Boenicke Audio SLS
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