What's you opinion?


Yes, your opinion does matter. What do you honestly think about subwoofers? What makes a good subwoofer? Are we or is the market tainted by big boomy, mushy woofers and car boom boxes? Does anyone really know what a good sub should sound like and how it should perform? Who makes a truly quality product? Is quality being measured by sound or physical characteristics or both? Maybe some other criteria I did not mention? Tell me what is your ideal subwoofer? Create it. Is it a sub or a subwoofer system? The floor is open.
cellorover
I agree with Foreverhifi2000 set up is EVERYTHING when it comes to a sub. Must use a spl meter with test tones at the minimum. I have a Velodyne F1800RII that I have modified and I couldn't live without it. In my opinion what makes a sub sound good is being as tight as posible with extension and the ability to integrate. Just my .02 John
OK, set up is critical. Where's the shortcoming? At the dealer, manufacturer or user end?

But what makes a good subwoofer?

What is your ideal subwoofer? Obviously it is one also with good instructions.
Why do audiophile's spend so much time and money on expensive amp stands? Why not just put your amp on top of your sub? The vibrations from the sub would have no effect on the sound would it? The answer must be no or they would not stick the amp inside a powerd sub. Also why do so many subs use cheap low-fi amps to power the bass when we spend thousands on our amps for the rest of our systems. Is the bass not as important as the mids and highs? Food for thought.
Biggest problem I see with most sub set-ups, right up there with improper placement, is trying to integrate a sub with small satellite speaker systems that have little or no bass below 80Hz. This forces people to push the subs up into the 100+Hz range where they really don't work as well. I started messing with biamped and passive subs back in the late 70's as LS3/5A's and KEF 101's and several other monitor speakers rose to popularity. The results were never completely satisfying. I finally gave up. Years later I read a quote that finally pointed me in the right direction. It roughly said that "It is difficult to integrate a sub with "main" speakers that have poor bass output". Recently, I have heard some really good main+sub set-ups where the mains were full range speakers with GOOD bass to about 45Hz; they just needed a little help in that last octave. Crossed over at about 60Hz, many of these set-ups sound quite good. (You still need correct placement.)