Marshall Origin 20 Head
This sounds very much like the original JTM45, it is single channel and a blinding amp. I like to crank the amp so I went for the 20watt as the 50watt would my neighbours knocking. I put this into two cabs 1 x 12 Celestion G12M greenback and a 1 x 12 Celestion Creamback G12M65 as I spent time looking at the forums where 65 was taking preference over the 75. I chose the YouTube video below as I think it shows the sound you can get from this single channel amp. It takes pedals really well and I use a ProAnalog Devices Manticore 2 to push it the most. Now I use it as half of my stereo set up wet only as I use my Laney as the dry amp.