[Abovetheair]

I'm getting some Swan M200MkII Speakers, I'm upgrading from come Altec Lansing ADA-305's. I heard the Swan's sound fantastic, just like I heard the Audio Technica M50's were. I defiently think you guys know what your talking about. Anyways I heard the Swan's will excel with a subwoofer, can you reccomend one to me for $100-200 price range. Or will my subwoofer for my Altec Lansing set work well? Also if there is any other things I can do to improve the sound for under $100 tell me please. I love my music so this is important, I got a Mac Mini and what I can tell is that the sound card is pretty decent.

 

[gorb]

I've no experience with these, but maybe one of the several bic models at amazon:
http://www.amazon.com/s/ref=pd_lpo_k2_dp_sr_sq_top?ie=UTF8&cloe_id=9dfb1979-8ebf-4ef4-87c5-6dd1d303d55e&attrMsgId=LPWidget-A1&keywords=bic%20subwoofer&index=blended&pf_rd_p=486539851&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=B0000Y2WYS&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=1G6JJS48XVRX12BX35CA
 
or perhaps a dayton sub-120:
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=300-635
 
or if you wanna stretch your budget to $269, you can get an emotiva ultra 10 on sale:
http://emotiva.com/shop/cart.php?m=product_detail&p=85

 

[Operandi]

Unless you build your own (which you may want to consider) this would be hard to beat.
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=309-177