Frequent lurker, first time poster. This is a great forum by the way. I apologize for the length of the post. I'll try to be as brief as possible. I have been playing for about a year, and improving steadily. I recently decided that my current combo -- SWR Workingman's 12 -- is slightly underpowered for my needs. I'm not real crazy with the tone either. So I decided to take a step up and put together a rig that was slightly more powerful (I don't gig and have no need for a lot of juice right now), more versatile and the best bang for the buck. To make a long story somewhat shorter I just purchased the following parts from some Ashdown MAG combos that a music store was selling on eBay. The combos had suffered cosmetic damage from shipping, so the music store pulled out the heads and the Blue Line speakers, which are all in "like new" condition and put them up for auction. Here is what I bought: 1) a head from MAG C115T combo; this is essentially a MAG 300 head, but without a shell or casing; 2) four (4) 10" Blue Line speakers; 3) one (1) 15" Blue Line speaker. First off, I don't know what the individual ohm ratings of the 10 inch speakers are, but collectively they were at 8 ohms in a 4x10. If anybody has information on how these MaG 4x10's are wired I would appreciate it. Assuming I can either mate them in pairs or as a 4x10, how would you configure all this stuff? A 2x10 combo (might be easier since the head came from a combo) at 8 ohms with 2x10 and 1x15 extensions each at 8 ohms? I think I will only need a 2x10 for the forseeable future, but if I need more power then I can hook up either the 2x10 or 1x15 extension. I understand I won't be able to hook all three cabs up at the same time in this configuration, but I honestly don't see needing to any time soon. Anybody have any ideas on a housing for the head if I decide to keep it separate? Thanks for your ideas.