Helped set up the son inlaw's system

3db

3db

Audioholic Slumlord
Ok.. Here are the measurement results:

First ..Sub crawl placement and the resultant measurements. None of these curves worked.
IMG_7449.jpg
IMG_7450.jpg

Subwoofer Crawl Results.jpg


Sub placement locations made by measurements, (not sub crawl) with measured results
IMG_7482.jpg
IMG_7483.jpg
IMG_7484.jpg


The sub configurations that produced the green trace was used as it provided the least peaks and valleys between the 30Hz-110Hz range.
Measured Sub Placement.jpg
 
Kingnoob

Kingnoob

Audioholic Ninja
I said goodbye to my grandson and daughter as they drove to daycare and school so I hoofed er down to their basement and tried the integration process once more. Success!! Very much good success to the point where I will state categorically that the subwoofer crawl doesn't work. I will illustrate later with measurements.

Subwoofer crawl initial sub placement...

No matter where I tried the smaller sub, I couldn't get a response without huge peaks and valleys measured from the couch.
View attachment 79252View attachment 79253

Late last night I moved the placement of sub beside by the right speaker to the left speaker as its response alone was full of peaks and valleys. No matter where I moved the 2nd sub around the room or changed the orientation of the sub beside the right speaker, I was always left with big peaks and valleys in the measured bass response . I moved the smaller sub against the left side of the seat (from the listener position) . This is what the room looked and the response was so good that all I did was toggle the phase button from 0 to 180 for each sub, both subs at 0 phase, both subs at 180 phase, and one sub with phase at 0 the other at 180, and then visa versa. It turns out that the best sub response was both subs with the phase set to 180.

View attachment 79254View attachment 79255View attachment 79256
Is that still the same system you gave themm or did they upgrade anything? Atleast they have you for calibration, I still don’t even have rew yet and laptop prices all shot up . The mic alone is $130 or so . Until I get income not happening . Looking at $1000+
 
W

Wardog555

Full Audioholic
Your seating position has a impact on sub response too so always be away from walls.
Try it out if you don't believe me.
 
Last edited:
3db

3db

Audioholic Slumlord
Your seating position has a impact on sub response too so always be away from walls.
Try it out if you don't believe me.
No kidding. I new that !!! But you failed to ask if this is a multipurpose room which it is and my hands are tied. I did the best I could with what I had to work with
 

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