@Micromara
Thx so much for ur kind gesture, willing to help, especially having gone thru your gigantic sophisticated project, humble of you to offer to help:
I actually have RF-7 MK1 and will love to change a few things, even the coil if possible. Im quite motivated reading through your project. Im very happy too that ure from Germany because Im from Holland (The Hague) and if possible I will prefer to get the stuffs from Germany.
Now I need at least a list of parts to change and will appreciate if you could let me know your vendor. Above all a summary of steps to take in successfully carrying out the upgrade. Once again goal is to enhance Mid sound, better bass and of course the tweeter is a must.
I dont want to sound like freeloader asking for summary of all the efforts of others; but I have read so much, so much, that I have come to appreciate the work of people like you, Deang, Yasnyi Sokol to mention but a few, Yes I have read so much that I am confused which parts is best and which step.
No problem I do have the tools, a good Soldering machine (to be precise PACE) with desolder option. I have also fried enough pcbs (talking about the saying: you never know what what is right until you do it wrong and long enough๐)
I look forward to all helps