Sorry to sound a little in educated . I’m learning as I go .
After finally completing 2550 build I have 2 1x12 cabs , Celestine hot100s Both speaker s are 8 ohm . If I plug both cabs into both speaker outs on the amp should I set impedance to 4 ohm or 8? I’m 90% shure it’s 4 ohm but I want to make shure .
Obviously if I’m using just 1 speaker cab it’s set at 8ohm. But 2 cabs connected got me thinking. 

Does anybody know there way around the schematics for classic tone power transformers.  I’m all wired up I just need some clarification I’ve done it correctly . If you can help I can put the pictures and details up .

Is any kind soul willing to help me figure out what wires go where on my 2550 build ?
Clear tone transformers diagrams are a little confusing. Help please , first time building. Thanks guys . Pictures can be posted if required and transformers models and wiring diagram posted too if anyone wants to help me out

In the uk here and looking for a sorce for transformers and choke if anyone can push me in the right direction. It’s for the 2550 . Ceriatone recommendation is jtm45 pt and plexi 50 ot.

Hi all . I’m in the Uk and having a little trouble getting my hands on piping both string and with the edges for the head shell I’m building. Also does anyone know what size the piping is on a plexi. Horizontal string size and the bead around the edge of the front of the head ? Thanks guys in advance

Anyone have the measurements of the 2550 chassis as I need to make a start on the cab before the kit comes. Thanks all