Originally Posted by dbergs
Yes, that did help. Thank you. The room is actually more rectangular where the main viewing area is 19 x 19. We'll be sitting about 8- 10 feet from the TV and it will be used 75% for movies and 25% for music.
I don't ahve any speakers yet, but when you say "90db/watt" do you mean "watts per channel" ? Sorry, I'm a newbie here and my questions are probably show that.
Sorry...forget watts for now.
Speaker sensitivity tells you how loud, or how many decibels, of sound are created by one speaker, outside, at 1m (or 3 feet in front of the speaker) with 2.83 volts applied to the speaker. Receivers, or amplifiers for that matter, don't supply watts to speakers. They supply volts...that's the job of the amp within the receiver.
The speaker driver's resistence, or impedence, factors into the calculation. All speakers' impedence fluctuates throughout the frequency spectrum. Some remain at (or above) 8 ohms, and some dip down to 2. The lower the impedence value, the harder for the power supply in the amp to continue to maintain a constant voltage. So, a speaker that dips down to 2 ohms (martin logan's larger electrostats do this) require an amp that has a big power supply to maintain a constant voltage throughout the frequency range. 4 ohm speakers are tough for receivers to drive because most receivers have small amp/power supplies and cannot continue to supply a constant voltage...they eventually shut off to prevent damage to themselves or the speaker. In your case, since you have limited funds, look for a relatively efficient speaker (90 dbs or more) and one that is 6-8 ohms so that a receiver can drive them. But, this is secondary to finding speakers that YOU enjoy listening to....not what others tell you to buy. Go out and listen to many speakers and take your time. Listen to some that are well above your price point so you can see what some truly hi-end stuff sounds like...then look for those in your price range that share similar characteristics. Go from there....
I would also start out with just 2 speakers for now so you can buy the best your budget will allow. Slowly add to the mix later.