While many agencies claim that they can repair your subwoofers efficiently, the truth is that you will never get the same performance from your subwoofer once it stops working. Another reason why it will be better to buy a new subwoofer is that the subwoofer unit today is much more affordable than they were ten years ago. Subwoofers with advanced features are available at very cheap prices. So, you should go for a new model rather than wasting money on its repairs.