Subwoofer

Some good points emailists. I was a Velodyne dealer a few years back. Still great I think.

I also do not believe in running my main speakers through the sub's crossover just for purity's sake. I know there are certain advantages to doing so but I like to keep the mains as clean as possible. This way also allows you to just turn the sub off when not wanted or to compare with and without.

Bass is not supposed to be fast. If it were it would be treble. Bass has a much longer wavelength than treble or midrange and takes longer to develop. If your sub seems muddy it's probably because it's crossed over to high or turned up too high.

In addition a good sub will increase the size of the soundstage. A sub that can go down to 20hz or below can better produce 27 or 40hz much easier than speakers that go down to 27hz.

I like Velodyne's DD series because of the room tuning and ability to play below 20hz.

In a room your size Mesch, I think the DD Plus 12" would be good. Velodyne has a chart on their site. Adding another later will work great.

A sub may go to 120hz but is not usually a good idea to have one crossed over so high.

I wish you would stop saying some subs are "too slow" bo1972. Bass is slow because it is supposed to be. I can almost guarantee if the bass is tight and fast it's because the sub is not going down to it's desired frequency. When's the last time you heard a 10' kettle drum or an acoustic bass?
Another thing. All audio components have limitations. Everything built has some limitation. A sub that works up to 120hz is easy. Making one work at 15hz is harder.