Originally Posted by avtryout
I read lot of your posts but never registered to post any question. I have a def.tech setup for last three years (+ some ugrades to speakers). So far, this is what I ended up with.
Center procenter c1
BL/BR Promonitor 80s
Not a great setup in terms of center yet. But now I seem to have a problem with my setup. I recently changed carpet with laminate floor. Since then speakers started sounding different and bass is so boomy. I had to cutdown bass to try to balance overall sound. (I'm not around 11 am position with7002.) I do not have any fancy connection done. Basically use speaker wire to connect. I do not have a sub and set up front and Surrounds to large with crossover set at 80.
Please provide me any tips that you can give.
A couple thoughts...
I'm sure the change from carpeting to hard floors is magnifying the bass boom. You probably have drywall/plaster walls, maybe one or two with windows, right? So, in essence you've set up one big "reflective chamber" Depending on the size of the room, the position of the speakers, and the resonant characteristics of the room, some or all frequencies are being affected.
In general, the environment of your room plays a bigger part in overall sound... than any EQ'ing you can do. Eliminating the boom from such a room, will be difficult... reducing it to acceptable levels, might be slightly easier.
1. Try moving the 7002's positions. Get them out of any corners, and try to put them 2-3 feet away from walls. Check the def tech web site... they have information about positioning bi-polar speakers. This will probably have the most impact to improvement in sound.
2. If your receiver has an "autosetup" feature, re run that. Your room accoustics have changed, and it will need to recalibrate with that new information. This is critical.
3. If you don't have autosetup... manually calibrate the system with an SPL meter and a tape measure.
You may have to repeat this procedure several times, with the speaker positions changed, to find the right points & levels.
If there is anything you can do accousticaly, to the room - throw rugs, drapes, etc. That may help offset (some) of the loss of absorbtion, from removing the old rug. There are a number of companies that sell specialized accoustic panels, that can be employed to "trap" bass, and cut down on standing waves & reflections. They might be an option, too.
Like I said, the physical characteristics of the room play a LARGE part in overall sound. As you see, simply by changing flooring, caused a dramatic change in sound.
Hope this helps... I'm sure others might have some idea's, too. Try them all, and see which works best.