need a sub for my 2.0 speakers

my speakers are the m-audio av40's and I want a sub for it. I don't mind buying used and im canadian so the store preferably has to be in canada. Budget is sub $200, preferably less than $150.

Go used via Canuck Audio Mart; you'll likely get a far better sub at a much lower price going used than you would shipping from the states.

At about $150 you're probably looking at a 10" powered sub in the 150 watt range, which should be more than sufficient.

Happy gaming,

Boz