My SUB sterling all of a sudden gives me no output (even after changing the battery for the preamp). I bought it about 5 weeks ago. I'm assuming that the preamp shorted out or fried itself or something and I guess I'll probably have to send it to EB. Now I'm not sure whether it's gonna cost so much to send it that it wouldn't just be easier to get an Aguilar preamp stuck in there or something. So how much does it cost to send a bass (safely) and how long can I expect warranty service to take? Also, are there any possible causes to the problem that I could perhaps fix myself?