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View Full Version : Subwoofer configuration dilemma


dbossa
April 14th, 2007, 7:04 PM
OK, to begin, you'd need to get an idea of my room. See the first photo in this link:

http://www.resitek.com/HomeTheatre/equipment.htm (http://www.resitek.com/HomeTheatre/equipment.htm)

My room is approximately 16x30. As you can see, my HSU VTF3-MK2 is sitting right behind my main listening area. It used to sit in the front right corner where you see the rack of CDs. The reason I moved it was because the room's response was all over the place. I would get 85db on the left sofa and the whole right sofa but only 75db on the main sofa. The corners in the back of the room behind me were very boomy. By placing the sub behind the couch, I was able to get a smoother response and actually got a few db higher at the main couch with a touch less at the other couches.

My problem is this: I normally have my Klipsch RF-7's crossed over at 80Hz. When I listen to movies, the overall sound is amazing and there is tons of bass at the main couch making it shake. However, when I play music the sub becomes quite distracting. Any bass in an audio track makes the couch vibrate which isn't always what you want.

So, I figured maybe I should set my main speakers to large (no sub) when listening to music and small (with the sub) when listening to movies. But, that's a bit of a pain in the ass IMHO. I was at an audio show today with lots of people running two channel systems and a sub and everything was so balanced. I actually find the sound of my RF's to be better than alot of the speakers I found at the show. But as soon as I start crossing over the bass, it gets boomy. I even have everything calibrated using a BFD and my response is quite flat. Even so, playing music, my sub is nowhere near as flat and as tight as my Klipsch. When I set my mains to large and turn off the sub, the bass is great. But, technically, shouldn't the bass be a hell of a lot better when adding a mighty sub like a VTF3-MK2 to the mix?

What does one do in this given situation?

qqkltb
April 15th, 2007, 6:43 PM
Carpeting the floor and Bass traps in each corner will make a big difference. Just about everything in your room seems to be a reflective surface. Adding more absorbing material in your room should help tame the lows.

lradden
April 25th, 2007, 12:55 PM
Have you tried lowering the crossover to around 40Hz for music only and 80Hz for movies. I have Monitor Audio silver S10 speakers that have good bass, but with the sub crossed at 80Hz it's too much for music(movies are great). I've lowered the crossover to 60hz for music and it blends perfectly now. My sub is in the front right corner so having it farther away helps too, but with yours so close I'd try a lower crossver like 40Hz.