thanks for the explanation about woofer vs subwoofer. does that mean that, if you want to cover the whole range you will need to have 3 way speaker + a subwoofer: Tweeter + mid + woofer + subwoofer. (If you have a good link that explains these kind of things I would love to have it. I don't seem to be able to effectivly search these forums) Right now I have a setup of a pair of Polk Audio RTi8, CSi3 for center and a couple of Polk audio bookshelf (monitor.... something) and a PSW10 sub (I know the sub is not any good). All of this powered by a Pioneer Elite VSX-29 i believe (i'm at work right now, don't remember the exact model #).
I am not very happy with my sound. Something is missing. I use stereo for music and 5.1 for movies. I'm not happy with either. Its Ok, but its not great.
Thats why i have started looking for other speakers, and since I don't have a lot of money to spend on new speakers I need to look for used "old" (vintage) speakers. What would I have to buy to be able to notice a big difference over my Polks?
Thanks again for all your help
looking at the specs of the RTi8's, their -3db cutoff on the low end is 30 hz...a sub would help with the last 10 hz of the audio spectrum...is it worth it for music? probably not.
the RTi line is polk's mid-level from a few years ago, IIRC, and should be pretty good, but all listening is subjective....what doesn't sound "right"?
comparing bookshelfs in an A/B, I ran some polk RT20's back to back with my refoamed Acoustic Research AR18 speakers, the AR's had much tighter bass, and were a lot more "airy" running on my marantz 2230. the polks sounded muddy, is the best discription. the AR's sound good with the bass/mid/treble controls all at about the same level, the polks, I needed to drop the mid control down 4-5 notches to sound decent to my ears.
I'm not sure how well some of the newer mid level receivers are as far as performance for music. you might be happier with a vintage setup like a 22xx series marantz.
another option would be to watch craigslist/ebay for an Audiocontrol EQ (2 channel ones can be found pretty cheaply) to shape the sound to fit your ears and room acoustics. I have one on my home theater setup (which is a mid 90's technics Pro Logic receiver and AR312HO's for mains), and being able to tweak output every octave is very nice to fit a system to a room. your pioneer might have that functionality built into it, I don't know.
"subwoofers" as an assembly are a driver, enclosure, and typically a self contained amp and active crossover and are designed to produce frequencies up to ~150 hz or so.
"subwoofer" as a driver, is a specialized woofer, designed to produce the lowest frequency ranges, typically from ~20-200, sometimes up to 1000 hz or so...a woofer typically has a wider frequency response, depending on it's size....a lot of subs typically have dual voice coils to input both channels into 1 driver, since the lowest frequencies (under 80hz or so) are non directional.
for example,
here's a 12" subwoofer, note it's frequency response specs, 25-200 hz...
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=295-555
here's a 12" woofer, note, it's frequency response is 25-2500 hz
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=295-320
or this one, with an advertised freq. response of 19-5000 hz
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=290-118