Any others with same pinout / voltage should work as well.
Am I missing something?
My headphone amp....a DIY, uses OPA2134 family but about a dozen others will also work.
My friend sold his EE Minimax and also the Minimax Plus just a couple of days ago. He just didn't want to mess around and could not dial out a midbass hump or bloated quality. He borrowed a couple of pricey tubes and got nowhere.
He's going to borrow my Rega DAC for a few days and also give the W4S DAC 2 a second try with a better cable.
It seems a lot of people are doing mods that are quite basic to the sound quality of the Minimax and I don't see that as a good thing. I feel a component should start off on the right foot and get better as you dial it in. I'm sure the Minimax is making a lot of people happy, especially folks who like the DIY angle on gear.