Newbie needs help.I want2build a Pass amp!

[Brooklyn758]

Thanks for all the suggestions and replies. Let me just ask 1 thing . What am I looking at in terms of price? can you just give me an idea . From the lower projects, to the Aleph 4.
Sorry about my grammar. That was 1 of my worst subjects. Also I hate typing. But let me tell you ,if I was writing this freehand. I would not even be able to understand it.Lol
My Mc2105 is a class AB amp? I think class A 1 transistor pushes.And another pulls.Is that correct? And a AB class the same transistor does both jobs. A class A amp is suppose to be the best sounding? My Mc2105 sounds pretty good to me. But my Dynaco mark 4s are little more cleaner and exciting. I'm new at this audiophile stuff,so I can't really tell the difference between the class of amp. As far as just listening . Separation and clarity is probably most important to me. Would these amps sound better then the Mcintosh 2105? I 'll be honest I never heard any of the high end stuff except for the stuff I came by.So in actuality I never heard a high end system. I just want to be able to build a amp that is going to sound better then what I have. So I can get a taste of the better stuff.

[DougL]

I had a suggestion. The F4 can be paralleled for 100 W into 2 ohms, or bridged for 100 W into 8 ohms. A single F4 is 25W into 8 ohms, class A.

Build one, get it working. Since this is DIY, oversize the power transformer to 600 VA or more. Try it. If it isn't enough, build the other one and bridge them. You should be able to build an F4 south of 500 clams.

Its documented, there may still be boards available, and its simple.
The only thing to consider is having a preamp with enough gain.

Here is a link to the manual. http://www.firstwatt.com/downloads/f4_om.pdf

Your class A question is answered by, it depends.
Here is another link http://www.firstwatt.com/downloads/leaving_class_a.pdf
My personal opinion is that class A is a powerful design tool. No more or less.

HTH

Doug