Maybe Brad. My SE2SEs have been flawless. My Utopia pre has proved challenging, eating 3 pairs of 6n23p tubes, and a seperate pr tubes failing quickly w frankly scary DC offset noise issues. Latter is sorted, but cannot for the life of me totally eradicate that 6n23p related hash.
Luckily it's tolerable w my 101dB Zus, but wouldn't be w horns. Demanding at the very least a move to Emia, Java Triple Shot or LTA preamps.
As long as I stay Zu, the Nats will do for me just fine. But I can imagine how infuriating unreliable gear, esp w tubes, can be. I've run a phonostage that did my head in, and Nat preamp tube noise is one of my few minor caveats w my sound.
Luckily it's tolerable w my 101dB Zus, but wouldn't be w horns. Demanding at the very least a move to Emia, Java Triple Shot or LTA preamps.
As long as I stay Zu, the Nats will do for me just fine. But I can imagine how infuriating unreliable gear, esp w tubes, can be. I've run a phonostage that did my head in, and Nat preamp tube noise is one of my few minor caveats w my sound.