Budget Subwoofer?


I'm looking to add a subwoofer to a small system (NAD C715 receiver/cd player with a pair of EPOS ELS-3s). Someone had recommended av123.com a while ago, but they no longer sell a budget woofer. By budget I mean under $300 USD.

Thanks for any advice you'all have!
comfortstarr
The older NHT SW2 and SW3 are very musical subs that might be found for under $300. These were sold with their own detached amplifier as they were passive subs. So please keep that in mind when pricing them.
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Do an online search. I guess this is a cracking good cheapy sub based on WhatHIFI magazine.
Sorry, about the last post. I was referring to the Wharfedale SW150 subwoofer. I guess it's fantastic for the money...."Takes all comers" according to WhatHiFi Magazine. Do a google search for this sub and find the best price.

I found it for $199.00 from Sound & Vision. Web link:

http://www.tsto.com/cgi-bin/TSTO.storefront/496961db00400da02740ac1003410616/Product/View/2821

Hope this helps!