.. but I'm only a listener, it is my second Headphone-Amp. For me it sounds nice and can drive a Sennheiser HD650 at +9dB loud enough for my ears.
I can't say anything more than the reviewer before, it's all I perceive myself.
The ordering process from Germany was very agreeable. I had one RMA, but it was a problem with the source I connected, not the Amp itself. The RMA was really painless. The concerns ordering a product outside my country are discarded. Thanks for that nice and gentle process!