SB Acoustics Textreme. - Page 75

Ugg10 · 20th January 2021, 11:40 AM

Think this is the info he refers to -

SB Acoustic MW19PN & MW19TX direct comparison in the same enclosure

Oneminde · 20th January 2021, 11:53 AM

Oh my... the paper is more well behaved.

jcga · 12:26 PM

Quote:

Originally Posted by shining31

@jcga, interesseting, did you have published something ?

Yes, it is in SB Acoustic MW19PN & MW19TX direct comparison in the same enclosure thread

Edit:
I see someone already answered you !

tktran303 · 20th January 2021, 12:45 PM

Quote:

Oh my... the paper is more well behaved.

I’d say the MW9TX is better behaved, but starts to beam, (becomes more directional) at a lower frequency than the MW19P...

Oneminde · 20th January 2021, 12:54 PM

Look at the high frequency, beyond the cone breakup. The paper will have better THD and especially IMD compared to the TX, while the TX will have better or flatter behavior in its useful range than the paper. So while the TX fixes certain things, it apparently comes at another type of penalty - the TX require steep filters ( 24dB) and further away from the cone breakup compared to the paper cone.

tktran303 · 01:01 PM

I have a 2 way speaker with the MW13P crossed at 1.8KHz.

If I were using a larger 7-7.5” mid-woofer in a 2 way, like the MW19, I’d cross below 2KHz as well. So I don’t quite see the problem between the TX or P

hifijim · 20th January 2021, 07:14 PM

Quote:

If I were using a larger 7-7.5” mid-woofer in a 2 way, like the MW19, I’d cross below 2KHz as well

Yes, that is how I see it. Anyone who wants to run a woofer this big above 2 kHz has already decided to comprimise on dispersion and directivity. This woofer will be at its best when crossed at 2k or below, just like every other 7 inch driver.

shining31 · 21st January 2021, 09:25 PM

Satori MW16TX-4 | HiFiCompass

hifijim · 21st January 2021, 09:56 PM

I really like HiFiCompass's measurements; his technique, the care he takes, the quality of his graphics and plots, his explanations.

I am pleased that my measurements in posts 542, 606, 608 agree, more or less, with HiFiCompass. It was an opportunity to embarrass myself, and thankfully that did not happen...

jcga · 22nd January 2021, 08:35 AM

Did you notice that we have the same frequency for the first breakup mode between the 16 and the 19 version, I'm wondering why ?

20th January 2021, 11:53 AM	#742
Oneminde diyAudio Member Join Date: Jun 2014 Location: Darkside of the moon.	Oh my... the paper is more well behaved. __________________ In order to become sane in an insane world, you must first become insane.

20th January 2021, 12:54 PM	#745
Oneminde diyAudio Member Join Date: Jun 2014 Location: Darkside of the moon.	Look at the high frequency, beyond the cone breakup. The paper will have better THD and especially IMD compared to the TX, while the TX will have better or flatter behavior in its useful range than the paper. So while the TX fixes certain things, it apparently comes at another type of penalty - the TX require steep filters ( 24dB) and further away from the cone breakup compared to the paper cone. __________________ In order to become sane in an insane world, you must first become insane.

20th January 2021, 12:59 PM	#746
tktran303 diyAudio Member Join Date: Dec 2005 Location: Perth, WA	I have a 2 way speaker with the MW13P crossed at 1.8KHz. If I were using a larger 7-7.5” mid-woofer in a 2 way, like the MW19, I’d cross below 2KHz as well. So I don’t quite see the problem between the TX or P Last edited by tktran303; 20th January 2021 at 01:01 PM.

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20th January 2021, 11:40 AM	#741
Ugg10 diyAudio Member Join Date: Nov 2017 Location: UK	Think this is the info he refers to - SB Acoustic MW19PN & MW19TX direct comparison in the same enclosure

21st January 2021, 09:25 PM	#748
shining31 diyAudio Member Join Date: Mar 2018 Location: Toulouse	Satori MW16TX-4 \| HiFiCompass

21st January 2021, 09:56 PM	#749
hifijim diyAudio Member Join Date: Sep 2019 Location: St Louis, MO	I really like HiFiCompass's measurements; his technique, the care he takes, the quality of his graphics and plots, his explanations. I am pleased that my measurements in posts 542, 606, 608 agree, more or less, with HiFiCompass. It was an opportunity to embarrass myself, and thankfully that did not happen...

22nd January 2021, 08:35 AM	#750
jcga diyAudio Member Join Date: Jun 2004 Location: Paris	Did you notice that we have the same frequency for the first breakup mode between the 16 and the 19 version, I'm wondering why ?