So, I had to make the sacrifice of getting a Fender Rumble Combo unit when my old amp died. However, I will soon have saved up enough to start working on my real setup. What I want to know, is if it is possible to bypass the Preamp and powered amp on a combo Rumble (500w, so generally equal to the 2x10) and buy my amp first? I also want to keep the rumble for the future just for the mere fact of how light it is. I'm planning on a Gallien-Krueger (leaning toward MB500, but posting a seperate thread for advice on that) to go with my Gibson Thunderbird. I have been searching on Talkbass for a day or 2, but may have missed if this has already been discussed, so please don't be mad.