QUOTE(auronthas @ May 31 2009, 07:03 AM)
Hi car_o_scope,
How close are your speakers to the rear wall? If your speaker back/rear ports and too close with back/rear wall, the bass will be boomy. IMHO, may i suggest you move out your speaker, then the boomy bass will be reduced. Please try if this works for you.
Auronthas
Oh ya.. I forgot to inform you guys about my speakers placement.
25 inches from rear wall and 33 inches from side walls.
Listening position is 13 inches from wall.
QUOTE(mugenfoo @ May 31 2009, 10:11 AM)
Ohhhh.... i see... u got an almost square room huh ..... ok ok ... lets see now.
OK, 1st things 1st .... i assume that your listening axis is along the length of the room.
Speaker placement .... make sure they are at least 3 ft. from any walls. Your listening sweet spot should about close to the centre of the room.
The reason that I recommend u start with this placement is:
1) the "near field"-style placement would be best to minimize the square room's colouration on your system
2) U got ample space the treat the room walls (and ceiling as well, if the height is also close to 11~12ft.)
The bass from AN&LR-CloseYourEyes are pretty much upper-mid bass only. Not much low freqs below50Hz. And i would suspect that speaker to sidewall placement would be key in solving it. Following the above "near-field" placement method, try to also angle-in your speakers until you can see the speakers' outer side-cabinet from your listening position. This would also help improve your focus alot and also reduce boominess as the speakers' woofers would be exciting the room at extreme angles. This usually means very extreme toe-in angles of more than 30degrees. Looks weird. But might sound very good in your case.
As for treatments.... lots and lots of padding at the side and rear walls. Would suggest that you treat about 2/3 of your sidewalls with a combo of diffusors and absorbers. Leave the 1/3 of the sidewall space clean ... and this 1/3 section should be at the speaker-end. At about middle of the side walls, go with diffusors ... (like RPG Skyline Styrofoam, or even hanging some Ikea bamboo or wood blinds are good). Then as you progress towards the rear end (closer towards backwall) of the sidewall, more absorby stuff. Plant some basstubes or rolled foam tubes at the rear corners. They would work as bass cavity traps to reduce bass boom caused by acoustic corner loading.
Directly behind your listening position, try having 2 large bean bags (and i mean BIG!) to the left and right. You can move the bean bags closer or further apart and see how the bass and even overall soundstage changes. You can also move them further back away, and this might help to tame some troublesome bass-booms too.
Backwall: hang some thick drapes or maybe even chicken-egg cartons / or similar, (floor to ceiling) would be good. Basically you wanna make your backwall seem further away acoustically. Cubpoards, bookshelves (with lots of books), cabinets (no glass panels) , etc etc at the backwall would be good.
happy furniture-moving & room-tuning.
Near field listening means that the speakers and listening position are very close?
Currently, the speakers are 6ft apart away from each other and slight toe in only.
My listening position almost 8ft away from the speakers.
I have switched the 2 foams behind speakers to the back of listening position.
The condition did not improve.
The book racks which I am using to store magazines are covering the side walls at the middle of the room.
Unsure of the efficiency though.
I shall try the extreme toe in angle.
At the same time have to reduce the distance between the speakers.