Marshall JCM800 2204 - Headfirst Mods. Full play-through and DIY Guide.

A 1983 JCM800 2204 (4010) has come in for the full Headfirst mod treatment. Here in Part II, I run through the finished tones and features of the amp. The second section of the clip goes into a length description of the mods from both a schematic and wiring up perspective (for the DIY builders, modders and those that just want to learn!) Link to documents for this mod: 0:00 - Intro play thru (Jose mode 1) 1:13 - What mods? 8:56 - Core gain channel tones 11:58 - Core gain with FET Boost 14:01 - Clean channel 14:46 - Jose mode 1 16:40 - Jose mode 2 19:18 - Schematic walkthrough - core circuit 30:49 - Schematic walkthrough - relay switching 42:20 - Gut shot pictures - wiring guide