Well you didn't look "EVERYWHERE" ... cause had you just typed "ib2900" in your search engine , than you would of found interfires website where it has "ALL" OF THEIR EVERY SINGLE AMP THAT THEY HAVE MADE! So just go to their website and u will find it that more than likely not only does it have the specs on their but will answer your question and if not they always have a phone number as well that u can call and one of their customer service reps will explain to you in detail and answer any questions you have !!
