Hello guys, I'm quite certain that I'm not the first one asking this, but I don't have time to read 300 pages, so If there is already an answer in the forum, please just link it then ignore me, but now let me have this absolutely lame question:
I'm planning to build this amp, I already have the tubes and the mosfets (which are the most difficult parts to find in Hungary) so there's not much left to begin.
The problem:
At the moment, I'm using Senn HD555's, but as fast as I can afford, i'm going to change to 580's, 600's or 650's, so I want the amp to perform well both with the 300 ohm headphones and as well as the sensitive 555's, therefore I'm supposed to build in a gain-switch.
The question itself:
Which components do I have to replace, and what type of components do I have to use?
As far as I could understand, I'm going to have to change some resistors or capacitors, or rather have two different type of them with a switc with which I can choose which to use.
I'm quite a newbye at DIY electronics, so please have mercy on me and try to answer in an easy-to-understand way.
Sorry for my bad english and Thanks for the answer!