 Sub Tuning
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Joined: Mar 2004
Posts: 76
old hand
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OP
old hand
Joined: Mar 2004
Posts: 76 |
Well, after spending ages playing with the tuning of my PB2-isd, M60s and Denon 3805 this is the best I can do.
http://members.cox.net/al1en/Sub_Tuning.pdf
I didn't realize until today that the Direct Mode did not high pass the mains, duh!
It would be nice if I could get a little flatter response, but I guess that is down to room acoustics. I have tried every possible sub placement and this is the best.
Oh no, I can feel some more experimentation coming on!
Dave
M60s, VP150, QS8s(3), SVS PB12-isd, Denon 3805, Emotiva UPA-7
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Re: Sub Tuning
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Joined: Mar 2004
Posts: 76
old hand
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OP
old hand
Joined: Mar 2004
Posts: 76 |
Any thoughts regarding my 80hz dropout from the main speakers? Could this be due to the 22" placement from the rear wall?
M60s, VP150, QS8s(3), SVS PB12-isd, Denon 3805, Emotiva UPA-7
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Re: Sub Tuning
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Joined: Mar 2004
Posts: 76
old hand
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OP
old hand
Joined: Mar 2004
Posts: 76 |
Actually moving the M60s back so that they are 19" from the rear wall removed the flat spot at 80hz. Go figure.
Last edited by al1en; 04/27/04 02:00 AM.
M60s, VP150, QS8s(3), SVS PB12-isd, Denon 3805, Emotiva UPA-7
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Re: Sub Tuning
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Joined: Feb 2004
Posts: 418
devotee
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devotee
Joined: Feb 2004
Posts: 418 |
It's amazing what 2" of movement can do for the sound quality of the M60s.
What test DVD are you using? Avia?
M-
M60s/VP150/QS8s/SVS PC-Ultra/HK630
Sit down. Shut up. Listen.
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Re: Sub Tuning
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Joined: Mar 2004
Posts: 76
old hand
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OP
old hand
Joined: Mar 2004
Posts: 76 |
I just created some -20dB test tones via Sound Forge at the frequencies I wanted - 125, 100, 80, 63, 50, 40, 31.5, 25 & 20hz - so that I had a constant signal to measure against. All of my test CDs etc have sweeps so it is impossible to get accurate readings.
Dave
M60s, VP150, QS8s(3), SVS PB12-isd, Denon 3805, Emotiva UPA-7
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