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3db's Great Room (mainfloor townhouse open concept) setup (1 Viewer)

3dbinCanada

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Ted
The fun started today. I've purchased a second identical PSB Subsonic6 used and cheap, have a miniDSP. This room is so irregular shaped with a gaping that I could not find a sweet spot for a single sub like I did for the basement.

No matter where I placed a single sub, I never got a smooth response like I was able to in the basement.
Bass@behindcouch.jpg Location Under Painting.jpg New-Facing-Couch.jpg New-Facing-Out.jpg

What a day. I'm exhausted moving sh?t around. I started today by placing the subs in the 1/4 and 3/4 position on the long wall and after calibrating the sub gains, I proceeded with the measurements. It turns out that the left LP response was horrendous. I pushed the sub to the corners of the long wall and took measurements, I had a dip in the center or main LP but it was better than the alternative. I went further with the subs in the corners r as I'm waiting for longer sub cables from Amazon to arrive and I still had to try and figure out the rest of the miniDSP REW process.

The first graph is what the individual sub responses looked like along with the combined L+R sub response;
Sub@Corners Combined and Individual Sub  Measurements @ Main LP.jpg

The second graph is the combined sub responses across 3 listener positions.
Subs Combined@Corners 3 LP.jpg

The third graph shows both the raw and REW eq'd response at the main LP
REW EQd  Corners L+R+1.jpg

The last graph is me playing with MiniDSP using input EQ to lessen that notch.
Sub Corners REW EQed + Manual DSP Eqed L+R+1.jpg


Did another sub placement exercise today. The right corner sub in yesterdays placement was moved to the other end of the couch, still behind it and firing back into the corner of its previous placement. The Left corner sub was moved to the right of the right speaker centered under the window. I will post measurements tomorrow.

This is where I ended up placing the two subs. Its even a smoother response than the one subs in the room corners.. There at opposite ends of the couch but give the best bass response where the white recliners are, I dont quite get it.
Great44.jpg

If you notice the media stand is under the TV. I used those 3M velcro strips and velcroed the miniDSP to the back of the stand.
Great42.jpg
Great43.jpg
 

3dbinCanada

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Ted
Here are the plots. The first plot is of each sub by itself taken from the center LP and R+L subs from center listening position.
L_Only_R_Only_R+L@C-LP.jpg

After the EQ. I chose the slope of the bass to be +10db higher between 20 and 30 Hz and be down at 10 db at a 100 Hz based on the Youtube video stating that the lower frequencies (20-30) need to be 10 db louder than at 80 Hz, aka house curve.
R+L Post EQ Across 3 LPs.jpg

I've listened to music and some BluRays and I must say that I agree with the slope philosophy, The bass is no longer boomy but the floors are rattling because of the lower bass. I'm actually quite pleased with the results.

Now integrating this with YPAO was a process I had to think about and run a few measurements. What I ended up doing was disabling the two sub outs on the miniDSP and running YPAO. I also ran YPAO for the main or center LP as I did NOT like what its was doing when I ran it across the 3 LPs. I realise that this would set the mains to large so just for shits & giggles (my favourite English expression) I ran a measurement as shown below.
FF-Mains Set To Large No Sub.jpg

I enabled the sub outputs on the MiniDSP, went into the AVR config menu, set the bass to sub only, set mains to small, and set the cross over to 90 Hz..(I experimented with that and 90 gave me the best result) . I also played with the sub distance and found that 10.5' gave me the best response. I also took a measurement of YPAO set to through which means no YPAO EQ but bass management is still employed.
YPAO Flat Verses Through.jpg
 

3dbinCanada

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Ted
Here are some pics of my second system using the PSB 600 as mains.

Great39.JPG
Great42.jpg
Great41.jpg
Great44.jpg
These last two pics were taken sitting at the main LP.

Great47.jpg
Great48.jpg
 

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3dbinCanada

Stunt Coordinator
Joined
Dec 8, 2020
Messages
57
Real Name
Ted
I decided to swap in the PSB500 and swap out the PSB600. I found some stands for the 500s and the tweeters are now at ear level.
Great49.jpg Great50.jpg Great51.jpg

Here are the measured responses;

Subs Only measured across all 3 LP
Bass Brown=LLP Blue=CLP Purple=RLP.jpg

Mains set to large subs turned off at CLP
Mains Set To Large No Sub @ CLP.jpg

YPAO set to flat across all 3 LP
YPAO FLAT Across 3 LP.jpg
YPAO Off, Mains Set to small across all 3 LP
YPAO OFF Mains Set To Small Across 3 LP.jpg
 

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