Figured I would update my thread on what I've been doing and plan to do.
A few weekends ago, I spent about 7 hours moving furniture around and moving the sub to different areas in my little room ~1150 cu.ft.
My methodology was very simple (maybe too simple since I don't have or I should say don't know how to use REW or any other measuring tools yet). I would switch my receiver to Dolby PL Movie mode. I left the SubMersive volume dial at one position, left the receiver sub level the same and did my test with Anti-mode out of the chain with the same master level on the receiver for each location as well.
I would move the SubMersive to one position, pop in a test disc and test different frequencies to see what it did to the overall response. I would then adjust the Sub distance in the receiver until I got more smooth/even response around the crossover region and note all of this in a spreadsheet. Then pop in a movie to see how it sounded when I found a decent to good location. After a few hours of all this, I decided to try one last spot - a midwall location. I don't have a digital camera anymore but the SubMersive is now where my DVD cabinet was previously. I was surprise that gave the flattest response in my room. I then ran Anti-mode, re-did the Sub distance for a more even response around the crossover region (usually adding about 3.5 to 4ft). Now that the SubMersive is about 7ft away from me, I did lose some of the visceral feel from the previous nearfield location (plus I consider my room as leaky as it open to the rest of the house as well as some hollow inside doors leading to other rooms). I decide to run the Sub 3dbs hot and with the second DSP engaged for added lift in the lower hz. So far the results are pretty good and with even less localization vs nearfield. Another weird but very good side effect from all of this is that each seat now measures the same. I probably need some more listening sessions before I make a final decision but so far all these steps have seemed to yield improvements.
After doing some research online, talking with Bryan from GIK Acoustic and fellow SubMersive owner, MikeDuke, I've decided to order some room treatments from GIK to improve the overall sound in my room (not just the bass). They should be here by the end of next week. I ordered (2) GIK monster bass traps that will go over the big windows- behind my curtains, (2) 244 bass traps that will go behind my front mains, and (2) 242 panels for sidewall-first reflection (where the DVD cabinets was or above where the sub is currently). I would have ordered more for my corners but I want to see how well these work first and I may decide to move the Sub again after treatments or even move everything in the room 180 degrees. Leaving the room as is will require custom made sized Tri traps or custom Monster Bass traps for the corner. My previous pics do not show it but at the front of my room (current TV location), the ceiling is 8.4ft and tapers down to 7.5ft in the back of the room. Flipping the room 180 degrees will lose the use of one recliner and may actually be better for sound but I should be able to use/order the standard GIK Tri Traps.
To the right of that TV is a door that leads to our bedroom. That door is a hollow door and I'm going to replace that with a solid wood door. Replacing that door may help with bass pressurization. It may not because the other side of this room not shown in the pics is open to many other rooms of my home.
Room layout sketch is below. The opening is 8ft wide by 6.5ft tall. The blue pieces represent the speakers, tv and sub. The oval brown things are the recliners. The opening leads to other open rooms that are about ~5500cu ft. The opening is 8ft wide by 6.5ft tall.
I'll try to borrow a digital camera and take pics when the treatments are installed as well as post some impressions.
I'm also considering ordering OmniMic from Dayton in a few weeks/months.

A few weekends ago, I spent about 7 hours moving furniture around and moving the sub to different areas in my little room ~1150 cu.ft.
My methodology was very simple (maybe too simple since I don't have or I should say don't know how to use REW or any other measuring tools yet). I would switch my receiver to Dolby PL Movie mode. I left the SubMersive volume dial at one position, left the receiver sub level the same and did my test with Anti-mode out of the chain with the same master level on the receiver for each location as well.
I would move the SubMersive to one position, pop in a test disc and test different frequencies to see what it did to the overall response. I would then adjust the Sub distance in the receiver until I got more smooth/even response around the crossover region and note all of this in a spreadsheet. Then pop in a movie to see how it sounded when I found a decent to good location. After a few hours of all this, I decided to try one last spot - a midwall location. I don't have a digital camera anymore but the SubMersive is now where my DVD cabinet was previously. I was surprise that gave the flattest response in my room. I then ran Anti-mode, re-did the Sub distance for a more even response around the crossover region (usually adding about 3.5 to 4ft). Now that the SubMersive is about 7ft away from me, I did lose some of the visceral feel from the previous nearfield location (plus I consider my room as leaky as it open to the rest of the house as well as some hollow inside doors leading to other rooms). I decide to run the Sub 3dbs hot and with the second DSP engaged for added lift in the lower hz. So far the results are pretty good and with even less localization vs nearfield. Another weird but very good side effect from all of this is that each seat now measures the same. I probably need some more listening sessions before I make a final decision but so far all these steps have seemed to yield improvements.
After doing some research online, talking with Bryan from GIK Acoustic and fellow SubMersive owner, MikeDuke, I've decided to order some room treatments from GIK to improve the overall sound in my room (not just the bass). They should be here by the end of next week. I ordered (2) GIK monster bass traps that will go over the big windows- behind my curtains, (2) 244 bass traps that will go behind my front mains, and (2) 242 panels for sidewall-first reflection (where the DVD cabinets was or above where the sub is currently). I would have ordered more for my corners but I want to see how well these work first and I may decide to move the Sub again after treatments or even move everything in the room 180 degrees. Leaving the room as is will require custom made sized Tri traps or custom Monster Bass traps for the corner. My previous pics do not show it but at the front of my room (current TV location), the ceiling is 8.4ft and tapers down to 7.5ft in the back of the room. Flipping the room 180 degrees will lose the use of one recliner and may actually be better for sound but I should be able to use/order the standard GIK Tri Traps.
To the right of that TV is a door that leads to our bedroom. That door is a hollow door and I'm going to replace that with a solid wood door. Replacing that door may help with bass pressurization. It may not because the other side of this room not shown in the pics is open to many other rooms of my home.
Room layout sketch is below. The opening is 8ft wide by 6.5ft tall. The blue pieces represent the speakers, tv and sub. The oval brown things are the recliners. The opening leads to other open rooms that are about ~5500cu ft. The opening is 8ft wide by 6.5ft tall.
I'll try to borrow a digital camera and take pics when the treatments are installed as well as post some impressions.
I'm also considering ordering OmniMic from Dayton in a few weeks/months.










So where are you going to put the bed? 






, but to be honest, I really don't think I need any more. I can honestly sau that after Craig did this last calibration for me, my room has NEVER sounded better. Now if I can only get the right Lazy Boy's I would be set. Looking forward to reading any more you have on the JTR's.



