Thanks. I think that would only be useful in driving the He-6s because on my SR71b with high gain on anything beyond 2 o' clock is already louder than I would want, even with high Ohm cans!
PS, Headamp is working on a new "Pico Power' amp, which sounds promising:
"Powerful like a desktop amp, small like a Pico."
Definitely the high gain setting for the Intruder is for the HE-6, although even there you really the extra grunt from the balanced connection in order to get satisfying volumes and reasonable drive from the HE-6. I've yet to hear my HE-6 well driven, the balanced connection to the Intruder is the best I've heard to date. Be interesting to see how the HE-6 sounds from my Audio-GD Reference 10 when that arrives and how the Intruder fares in comparison.
The Pico certainly has appeal, I really like my Pico USB DAC/amp, however it doesn't work with my Galaxy Note 2 so it doesn't get much of a look in at the moment.