XP-7 headamp clone…
March 23, 2020 Leave a comment
Another build I’ve managed to finish during the past week is the XP7 clone (originally shown here). As I explaned originally this is more or less a standard OPA+BUF634 amplifier with the only real “USPs” of this implementation being the use of AD797 opamps and lower gain resistor values than usual – both of which should help reduce noise.
I’ve done my bit for noise reduction as well by making the amp powered by two 9V batteries – I haven’t tested the battery life yet, but hopefully it isn’t too bad 🙂
Regardless of that I don’t particularly need another headphone amp as I don’t really listen to headphones that often any more. However since this one is battery powered I will not pack it too far away, because a battery powered amp is quite useful for testing (due to no ground loops). And, after a little bit of listening to the finished product I have to say that it doesn’t actually sound bad at all…