So I'm extremely happy with my Grant Fidelity TubeDAC 11 - it's an awesome little piece of equipment, and sounds incredible for what it costs.
Grant Fidelity also have a headphone tube amp called the PH-6 that supposedly (according to them in a thread somewhere) pairs nicely with the DAC output of the TubeDAC.
All my headphones are low impedance (Grado RS1i, Grado SR125, Denon D2000, V-Moda M80) so I can't use the tube output of the TubeDAC 11 directly to any of them, so I'm tempted by the PH-6's potential to complement my setup.
I've searched, and see that some folks (specially on audio-karma) have it, but nobody seems to have discussed it. Can anyone give me some feedback / impressions of it?