Articnoise
Headphoneus Supremus
Penned a review on two amps with the HE6 here. The Pass Labs XA25 (25 wpc at 8ohms) and the First Watt F7 (20 wpc at 8 ohms). Both designed and sold by Nelson Pass.
theheadphonelist.com/pass-labs-xa25-vs-first-watt-f7-the-two-newest-nelson-pass-amplifiers-go-head-to-head/
Nice review!