Hi, I am looking for a cheap Subwoofer. And this model is on sale for a little more than 125 pounds.Is Wharfedale and esspecially this model any good? I know that the Wharfedale is a Budget brand. I have the Kef Q 50, Q10 and the model 100 for the rest of my speakers. So is this Sub anygood or is it just a waste of money and i better save up for a Rel Q50. Is there other entry Subs that can be recommended? Thanks for reading and hope you can help me out.