Originally Posted by flecom
again, its a simple dual opamp headphone amplifier, every cmoy is basically exactly the same idea... i dont think the RA-1 was in ANY way an original design...
Well, there's
something original about the design. I have a clone, using same parts, and it does not sound like my de facto RA-1. It's actually better in some respects, but it lacks the slight warm, tubey quality of the RA-1. With a simple design and a small parts count, all it takes is one slight difference to change the whole sound.