Subwoofers for muddier bass

Devg said:

So this is what confuses me - so help me understand. How can I hear the bass and soundstage without putting the speakers in the right place ? In other words, in order to determine the seat position, do I need to put the speakers in a predetermined location ?

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I'd get them generally as far into the room as seems possible.

Devg said:

Nope. I bought the DVD set from Amazon.

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Send me an e-mail requesting them and I will add you to the mail list and send you links to all of the 19 QNs so far.

[email protected]

Devg said:

I wasn't aware of all the installments. How can I get them ?

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Its easiest to simply subscribe - there's a lot of interesting info.

Here are links to the various issues in which I have contributed:

http://www.psaudio.com/issue/issue-12/

http://www.psaudio.com/issue/issue-14/

http://www.psaudio.com/issue/issue-15/

http://www.psaudio.com/issue/issue-16/

As you can see the issue links are predictable - I am writing for Issue # 17 now.

Jim Smith said:

I'd get them generally as far into the room as seems possible.



Send me an e-mail requesting them and I will add you to the mail list and send you links to all of the 19 QNs so far.

[email protected]



Its easiest to simply subscribe - there's a lot of interesting info.

Here are links to the various issues in which I have contributed:

http://www.psaudio.com/issue/issue-12/

http://www.psaudio.com/issue/issue-14/

http://www.psaudio.com/issue/issue-15/

http://www.psaudio.com/issue/issue-16/

As you can see the issue links are predictable - I am writing for Issue # 17 now.

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Thanks Jim. I have ordered the book and hopefully will get to read this week.

I did some quick REW measurement this morning after playing with the listening and speaker position. The bass has been a lot better but still not there. The speakers are very much into the room about 1/3rd of the length measuring from the back wall to the back of the spkr and my listening position is also about 1/3rd (a bit less) from the wall behind. In this position, all ratios of speaker to listening distance doesn't seem to apply but I felt has the best soundstage and bass.

Here is the SPL graph with 1/12 smoothing.



Here is the waterfall

Devg, have you tried starting over completely from the front wall with the speaker positioning?

I believe you said you moved them back 1 foot from their original position.... but not sure what that equates to.

I guess what I'm asking is have you started with the back of the loudspeakers a distance as close as you can to the front wall whether that be 1 foot or 2 foot and then go forward toward the listing position from there?

Maybe your room and set up simply needs more coupling of the loudspeakers to the room?

MikeCh said:

Devg, have you tried starting over completely from the front wall with the speaker positioning?

I believe you said you moved them back 1 foot from their original position.... but not sure what that equates to.

I guess what I'm asking is have you started with the back of the loudspeakers a distance as close as you can to the front wall whether that be 1 foot or 2 foot and then go forward toward the listing position from there?

Maybe your room and set up simply needs more coupling of the loudspeakers to the room?

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Mike, yes, I started from 1ft from the back wall but the sound is too harsh and hard. The bass is also more muddier. With this speaker, I haven’t heard any setup sounding good when they are close to back wall. The soundstage looses dimensionality and sounds flatter the closer the speakers are to the back wall.

Devg said:

Mike, yes, I started from 1ft from the back wall but the sound is too harsh and hard. The bass is also more muddier. With this speaker, I haven’t heard any setup sounding good when they are close to back wall. The soundstage looses dimensionality and sounds flatter the closer the speakers are to the back wall.

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OK thanks. Is this true without the bass traps in place? (and with).... playing with the placement of the loudspeakers starting at the front wall and moving toward the listening position?

MikeCh said:

OK thanks. Is this true without the bass traps in place? (and with).... playing with the placement of the loudspeakers starting at the front wall and moving toward the listening position?

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There is no bass traps in the room now. The problem with my room is the listening position changes with the speaker position. The listening position from the smoothest bass response when the speaker position, say 3ft from the back wall is no longer valid when the speaker position is say 5ft from the back wall. This is the exact question I asked Jim in the earlier post and he suggested to move the speaker as far away from the back as possible. My speaker designer, Robert, suggest to first find the speaker position and the decide the listening position which is opposite of what Jim suggests but I find they are kind of chicken-egg problem :|