I was thinking of the entry level
Any OTL speaker amps? I've looked at the Woo / Feliks headphone amps, but IDK if they have enough power output for the HE6SE V2.
And, I "think" I like the "classic" Transformer output Tube amp sound, where I heard it first many decades ago - but I do appreciate the auto-bias technology refined since to optimize tube performance as they age and to add the flexibility of auto-configuring output tube options - so I'm looking at the
Primaluna line of tube AMPs.
I still need a bit more research on which specific model, IDK how high up the chain of model features I need to go, but I think the entry level
Primaluna EVO 100 AMP/
Integrated would be fine for the power requirements of the HE6SE V2.
Going up the model chain a bit to the
PRIMALUNA DIALOGUE PREMIUM AMP adds the simplicity of 6x 12AU7 + 4x EL34/KT88/KT120/KT150, 2 tube types to roll (after choosing power output tube) instead of 3 or 4 or more different tube types to roll.
The Primaluna Integrated amps also have a headphone tap off of the tube amp, but goes through a voltage divider to reduce the power, so I'd still want to connect the HE6SE V2 to the 16/8/4 ohm taps for the full output.
Does anyone have experience with the Primaluna tube amps with the HE6SE V2?
Still looking...