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In Reply to: Re : It might only make half your record collection sound better, for free posted by KlausR. on May 6, 2007 at 10:48:26:
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Follow Ups:
Is that good enough?
Tell us?
HiYep, no physical speaker looks like that (essentially perfect) and the minor pre/post ring on the impulse is a trait of a FIR filter, often used for this kind of correction.
My guess would be you have fixed the response down to about 15 – 20 Hz?What speakers are these and what dsp are you using if I could ask?
Also, how did you measure the speakers to derive the correction?I am working on an active version of the SH-50 which has FIR filters and am looking forward to hearing what they sound like fixed that way and tri-amped.
You can do a lot with DSP and I am about as far as I can go with physical placement and drivers parameters given what the horn has to do.
Best,
They use FIR filters, response is flat ± 1.5 dB down to 30 Hz, -3 db at 27 Hz, on demand they can go lower with decreased max. SPL.More here
HiThis would appear to be a DSP corrected loudspeaker yes?
Tom
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Did you see that from the graphs?
c
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Over a year ago, I was stating what Klaus has written, but you argued that since recordings were 50/50 in their polarity (not something I said or has been true in my experience), that basically, polarity of recordings and speakers were not an issue and nothing needed to be done.Acceptance of the status quo was what you preached, and the most that you advocated was simply an addition of a polarity switch on a preamp. When I pointed out that many speakers have drivers in mixed polarities, you seemed to be oblivious of that fact. I honestly thought you were simply pandering to the interests of the mainstream speaker manufacturers,
What has brought about this change in view?
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