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 Post subject: Re: For those that EQ...
PostPosted: Thu May 05, 2016 10:55 am 
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Joined: Sun Mar 20, 2016 8:58 am
Posts: 292
Location: Charlottetown, PE, CA
Your response above 100hz or so looks very uniform. With 1/6 smothing, the usual high benchmark for our ear's performance, you would likely be comfortably within +/-3db range or so. Very good result.

If you were to measure off centerline axis you may see the 1st order width suckout around 35hz reduced. No point in trying to boost that one. The less severe 2nd order length mode at 45ish hz might be reduced by sliding your MLP further forward towards your speaker axis. This will expand your soundstage width, increase the direct to reflected ratio and boost the useful spl of your system slightly. I dont know your room dimensions, or setup, so I am guessing modes based on math and common dimensions.

A fully adjustable telescoping mic stand can be had at L&M for under $40. Very handy tool. :) Would be nuce to see pics of your room/layout w/treatments. :)

You seem to know your stuff, so sorry if I come off as "you should do this...."


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 Post subject: Re: For those that EQ...
PostPosted: Thu May 05, 2016 6:49 pm 
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Joined: Tue Jan 18, 2011 6:07 pm
Posts: 1579
Location: 53˚27'46"N 2˚17'28"W
Serenity_now wrote:
Your response above 100hz or so looks very uniform. With 1/6 smothing, the usual high benchmark for our ear's performance, you would likely be comfortably within +/-3db range or so. Very good result.

If you were to measure off centerline axis you may see the 1st order width suckout around 35hz reduced. No point in trying to boost that one. The less severe 2nd order length mode at 45ish hz might be reduced by sliding your MLP further forward towards your speaker axis. This will expand your soundstage width, increase the direct to reflected ratio and boost the useful spl of your system slightly. I dont know your room dimensions, or setup, so I am guessing modes based on math and common dimensions.

A fully adjustable telescoping mic stand can be had at L&M for under $40. Very handy tool. :) Would be nuce to see pics of your room/layout w/treatments. :)

You seem to know your stuff, so sorry if I come off as "you should do this...."

Thanks for responding. Here is an old shot of our condo:
Image

Pay not attention to the audio equipment for acoustic panels, they are no longer with me. The view is from where the equipment is now. To the right are floor-to ceiling windows, the wall you see is the back wall now. You can see the couch to the left - is you sit on it, then you would be able to see the speakers... Magnepan 2.5r :)

It's a little late to get decent shots of the space, so please bare with this one until the weekend.

The room has a ceiling height of 11' on one half and 11'6" at the other. Front-to-back length is 25', and the widths (relative to the speaker set up) are 18', 26', and 32'.

With regard to moving the listening spot forward or back... I did used to sit on the couch, about 2m from each speaker but then I moved the speakers further out into the room and then the couch spot was too close, so I sit now on a bar stool about 3' behind the couch. Now that I've moved the speakers closer to the wall I guess I can measure a listening spot a foot or two forward.

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