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Old 20th April 2009, 05:00 PM   #1031
pos is offline pos  Europe
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And It uses FIR filters !
But only two sub outputs...
What is the price tag for the JBL BassQ ?
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Old 20th April 2009, 05:36 PM   #1032
gedlee is offline gedlee  United States
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Originally posted by pos
And It uses FIR filters !
Thats a joke, right? I wouldn't want FIR filters because of the group delay. For good LF resolution FIRs would have quite long delay times.
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Old 20th April 2009, 05:40 PM   #1033
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Default Audyssey Xt

Since I've already used Dr. Geddes placement and mike sweeping methods with my 4 12" subs, placed as recommended, and I have Audyssey multiEq XT on my Denon receiver already in use, I'm not sure what all the fuss is about.

Dr. Geddes method works pretty well, I have even, deep, and subjectively robust bass throughout the listening area; the only dead spots are in one corner near the front of the room opposite the corner sub, and reduced bass on top of my coffee table. All listening locations sound smooth and refined... and deep, with little if any doubling distortion I've always found annoying (as in, you know there's deep bass, but all you can do is imagine it)

All 4 sonosubs I built combined for less than the cost of the unit listed. The Denon wasn't cheap, but it's multi-zoned, upconverts std. dvd's to high quality images, and meets all my other needs (except the primary remote sucks).

John L.
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Old 20th April 2009, 05:54 PM   #1034
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Quote:
Originally posted by gedlee


Thats a joke, right? I wouldn't want FIR filters because of the group delay. For good LF resolution FIRs would have quite long delay times.
8.5ms delay. I couldn't resist starting a discussion with the SVS guy—you might want to join us at http://www.hometheatershack.com/foru...es-sale-6.html

Best, Markus
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Old 20th April 2009, 07:21 PM   #1035
gedlee is offline gedlee  United States
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Markus

I'm not dumb enough to jump into a love fest like that. Just look at the title of the thread - its not objective at all. No one there wants to know the truth, they just want to hear others applaud the product, not question it.

The delay thing, which simply goes away if you use IIR filters, and the lack of understanding of how the mains need to be part of the calibration. There is no real recognition of the details of the problem. Requiring that ALL speakers have an f3 of 80 Hz - thats real practical.
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Old 20th April 2009, 07:36 PM   #1036
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Seriously. There's some not-so-subtle nut-hugging over in that thread.
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Old 20th April 2009, 08:01 PM   #1037
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That's where the fun starts.
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Old 20th April 2009, 08:20 PM   #1038
gedlee is offline gedlee  United States
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You bad! I can't get away with that kind of thing, not in my position. Let me know if they say anything interesting, but I will probably stay out.
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Old 27th April 2009, 08:37 PM   #1039
fredk1 is offline fredk1  Canada
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How practical is is to use ported mains as part of the lf solution?

My understanding is that you would need sealed mains that start to roll of up in the 150Hz range to successfully cross them with the lf subs.
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Old 27th April 2009, 10:46 PM   #1040
gedlee is offline gedlee  United States
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Quote:
Originally posted by fredk1
How practical is is to use ported mains as part of the lf solution?

My understanding is that you would need sealed mains that start to roll of up in the 150Hz range to successfully cross them with the lf subs.
I don't think that its optimum, but I also don't see any reason why it wouldn't work. Remember, I don't "cross" the mains to the subs, they overlap. Ported should work OK.
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