subwoofer for music?


Hi all

My Speakers are the neat ultimatum mf5 which claims to have specs of

MF5 response @ +/-3dB is 28Hz - 40kHz. The typical - 6dB point in the bass is 22Hz. (from BOB of neat)

Can a 6.5" driver get that low?? Proacs and PMC also have specs that go that low! While speakers with drivers of 12" only gets to 30+hz usually...not sure why

I dont feel a lack of bass from the speakers, but having a sub that can fulfil both role of music/movies and help my system to get down to 20hz will be awesome! (will set the crossover at 35hz or less)

However i will have a subwoofer regardless because i will use it for theater, and the pv1d just does not cut it for movies. So therefore im looking for a sub to be used for music and movies with budget as low as possible.

Will 2 subs help stereo imaging? I would much prefer a single sub for convenience .
Room is 8m(6m usable) x4m. So after reading some info, here are some choices that is within my budget (but i would prefer to spend as little as possible)

-jl audio f113

-twin velodyne spl 1000 ultra

-jl audio f112

-bower wilkin db1

-velodyne dd15 (not plus version)

-twin jl audio f110

-mk 350 mk2

-rel r528

I heard about SVS and KK and paradigm subs, but they are a pain to get in my country

Any help will be appreciated. Thanks all :)
nieveulv
Johnk have you actually ever seen or heard a REL? Sure doesn't seem like it based on your comment/post.
BEing cheaply made and sounding good/being highly functional are not mutually exclusive.

For example, though not inexpensive in the minds of many, it could be argued that the OHM speakers I prefer are cheaply made compared to many others, especially those that cost a lot more. Still, despite searching and listening hard, I have not heard anything yet that makes me want to part with the OHMs. Its the value proposition for the sound I want and get with them that keeps me there.

I do not know which subs are or are not made better than others. Have not done the research. If others have, please share.

Thanks.
Rel are very cheaply made?

You gotta love hit and run posts. I have a Rel T1,and love it. Hey johnk, what do you have?
My trusty old REL Q150e is built like a tank and cost over a grand when new (13 years ago), although I bought it a couple of years ago so cheaply it's embarassing...but I can say mine was "cheaply bought." It covers lower bass amazingly well in my room thus obviating the need for another one, and it does this with headroom to spare. I think some use more woof than required and this leads to actually needing a digital processor to compress and limit things.
I think I can sort of get the "REL is cheap" sentiment if you're a person who listens to bass heavy music. The truth is the g1 & g2 fail miserably when you try to feed them bass heavy music. Where they excel is for those people who listen to acoustic, symphonic or even rock, and are just looking to fill in the bottom octave. So by no means is the REL cheaply built, it's just not purposeful when it comes to bass heavy music. I do like the REL design, and like it over the JL design to a degree. But in the end I love the menacing looks of the JL's. When you look at them you know they can blow your socks off.