Hi, i was thinking about to buy the new Marantz Cinema 40 or 50 for my home cinema. That started my cinema hobby so i thought i do some more improvements.
I bought the Marantz SR7011 a couple of years ago and had some room modes with my Arendal Sub2 and the Tannoy XT8F (FL/FR). So i built these gigantic bass traps - in hope they would fix anything.
At that time i had no idea of REW or anything, i just did it and thought "yeah, sounds better". Now i can do REW measurements but i am probably lacking of interpreting it correctly.
As i am planning to replace the Arendal Sub2 with 4 smaller subwoofers (the Cinema 40 and 50 can handle 4 subs) to get a better bass, i thought i do some measurements regarding the bass traps.
My flat is the living room and a sleeping room, the kitchen is just behind the tv and the separation closet:
The sub is behind the green towel, have to protect it from my cat. Same with the Marantz. The towel below the center does not "close" the marantz, the back is completely open, so no problem with heat.
The couch was replaced with a much smaller one. So i have now one single sitting position in the sweet spot with a relax chair and a 2 seater couch at the right side.
In the left and right corner are 2 bass traps with size 120x50x50 cm (48 x 20 x 20 inch).
I moved the sub for testing from center left to between the printer and the bass trap (close to the Tannoy XT6F) and did a first measurement:
after that i removed the upper bass trap and did a measure again
I have a heavy drop in 70hz. So i thought i remove the lower bass trap too (so complete left side without bass trap in the corner) and check what happens
tbh: i dont understand it
I thought a bass trap "eats" peaks to prevent room modes, but this looks more like it makes a better curve in general and improves drops. Without the left bass trap i have a drop in 60, 70, 85, 92 and 100hz.
I am wondering now if i could remove the bass traps when using 4 subs* in the corners. I really liked them but they are just really... big. I have no girlfriend/wife so its not that big deal but, if possible, i would like to get rid of them. Or should i keep them? Or do i interpret the diagrams wrong?
*4) if so, what would be recommended?
ps.: sorry if my english is not the best, its not my native language
I bought the Marantz SR7011 a couple of years ago and had some room modes with my Arendal Sub2 and the Tannoy XT8F (FL/FR). So i built these gigantic bass traps - in hope they would fix anything.
At that time i had no idea of REW or anything, i just did it and thought "yeah, sounds better". Now i can do REW measurements but i am probably lacking of interpreting it correctly.
As i am planning to replace the Arendal Sub2 with 4 smaller subwoofers (the Cinema 40 and 50 can handle 4 subs) to get a better bass, i thought i do some measurements regarding the bass traps.
My flat is the living room and a sleeping room, the kitchen is just behind the tv and the separation closet:
The sub is behind the green towel, have to protect it from my cat. Same with the Marantz. The towel below the center does not "close" the marantz, the back is completely open, so no problem with heat.
The couch was replaced with a much smaller one. So i have now one single sitting position in the sweet spot with a relax chair and a 2 seater couch at the right side.
In the left and right corner are 2 bass traps with size 120x50x50 cm (48 x 20 x 20 inch).
I moved the sub for testing from center left to between the printer and the bass trap (close to the Tannoy XT6F) and did a first measurement:
after that i removed the upper bass trap and did a measure again
I have a heavy drop in 70hz. So i thought i remove the lower bass trap too (so complete left side without bass trap in the corner) and check what happens
tbh: i dont understand it
I thought a bass trap "eats" peaks to prevent room modes, but this looks more like it makes a better curve in general and improves drops. Without the left bass trap i have a drop in 60, 70, 85, 92 and 100hz.
I am wondering now if i could remove the bass traps when using 4 subs* in the corners. I really liked them but they are just really... big. I have no girlfriend/wife so its not that big deal but, if possible, i would like to get rid of them. Or should i keep them? Or do i interpret the diagrams wrong?
*4) if so, what would be recommended?
ps.: sorry if my english is not the best, its not my native language
Last edited: