Home Speaker Asylum

General speaker questions for audio and home theater.

Double face palm time, yet again...

"So, acoustics 102 is to stop engaging with unrealistic oversimplified theoretical models and to engage with the real devices, something that based on literature I read in my misspend youth was quite common in German acoustics decades before I was born...."

- Thorsten on the value and benefit of running a 15 inch woofer at tweeter frequencies.


I got your real devices right here, Thorsten:

Here's a the current list of top rated loudspeakers from one of the most popular review magazines in the world today:

Aerial 20T - 2 9" woofers crossed over at 300hz

B&W 800 Diamond - 2 10 inch woofers crossed at 350hz

KEF 207/2 - 2 10 inch woofers crossed at 120hz

Revel Ultima Salon II - 3 8 inch woofers crossed at 150hz

Sonus Faber Amati Futura - two 8.75 inch woofers crossed at 80 hz

Sony SS-AR1 - two 8 inch woofers crossed at 400hz

Vandersteen 7 - 12 inch sub woofer crossed at around 90hz

Vivid Giya1 - 2 11 inch woofers crossed at 220hz

Verity Audio Sarastro II- 11 inch woofer crossed at 150 hz

Wilson Maxx 3 - 13 inch and 11 inch woofers crossed at around 150hz

Revel Ultima Studio 2 - 2 8 inch woofers crossed at 230hz

MBL 101E Mk.II - 12 inch woofer crossed at 105hz


See any 12 or 15 inch drivers on this current highest rated speaker list crossed over higher than 500hz, let alone up near 5 or 6khz?


Btw, Einstein - the 15 inch woofer in the Meyers Sound X-10 is crossed over at 950hz - which is about as high as anyone would want to go in order to maintain a reasonably high level of fidelity. JBL has been crossing over its 14 inch woofers in house systems at 750hz and lower for years (my old 250Ti Limiteds cross at 400hz). So nice try on the Meyers - but as usual - WRONG.


Given your apparently high opinion of your understanding and experience, I'm guessing that you think all the folks who built the above speakers didn't pass "acoustics 102" yet. Or perhaps they're all part of a conspiracy to ban 15 inch woofers from the home loudspeaker market, right?


Tell you what Thorsten. RMAF is coming up this fall. The show could always use some added comic relief to draw attention away from borish, snobbish, audiophools constantly badgering one another about who makes the best loudspeaker... Perhaps you could help lighten the mood a little by giving a seminar on why you think the industry has it all wrong - that it should be using 15 inch woofers in controlled break up crossing over to tweeters at several thousand hertz... That should get some laughs if nothing else.

http://www.youtube.com/watch?v=BNsrK6P9QvI





Edits: 07/11/12

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