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B&C 21-IPAL Driver and Measurements Discussion


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#41 manninen

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Posted 09 July 2016 - 08:53 PM

If you look into Ipal AES convention paper, you can see that it "can be matched to any high performance low frequency high excursion transducer, even though it's performance can be maximized if used in conjunction with some specific transducer" and I believe being a matter of cost and profit, it isn't always the best choice to make the best one can do, because for 3 dB extra, it is better for them if you buy an extra box than to spend more to use the best driver. ;)
I never opened a MLX sub so I cannot know, but they definitely use the Ipal module controlled by their own software

Yes that 2012 spare driver quote is incorrect, martin audio online list says 2ohm for the DLS18002  Driver.

 

ipals are hard to find/expensive US imports here in europe, im using BMS 862´s and getting them some more because of england situation, 862 costs 423£



#42 radulescu_paul_mircea

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Posted 27 February 2017 - 09:52 AM

Related to the Ipal Technology, I found a test with the 18 ID driver

http://www.audioxpre...-18-inch-woofer



#43 Ricci

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Posted 27 February 2017 - 08:20 PM

Related to the Ipal Technology, I found a test with the 18 ID driver

http://www.audioxpre...-18-inch-woofer

 

Yes. Unfortunately VC mag tested almost every other B&C woofer but the Ipal's. For some reason the 18sound Klippel tests always seem to have a bit more variation than the B&C's. Still it's a nice driver and came in at about 13mm xmax which is only 1mm under their 14mm spec.



#44 radulescu_paul_mircea

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Posted 04 March 2017 - 12:07 PM

If one ever wondered how stupid loud would 12 21" Ipal be in a relative small bandpass enclosures tuned to 50 HZ

https://www.youtube....v0fE#t=1.877333

 

:))



#45 Ricci

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Posted 06 March 2017 - 05:09 PM

Well it's definitely loud. Where are these guys from?



#46 radulescu_paul_mircea

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Posted 06 March 2017 - 06:55 PM

I think Dominican Republic

#47 Kyle

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Posted 08 March 2017 - 05:29 PM

Yes. Unfortunately VC mag tested almost every other B&C woofer but the Ipal's. For some reason the 18sound Klippel tests always seem to have a bit more variation than the B&C's. Still it's a nice driver and came in at about 13mm xmax which is only 1mm under their 14mm spec.

 

Those liars!


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