Hi, i'm an happy owner of a pair of Sennheiser HD 558 foam modded, with 60 Ohm of impedance. I've recently bought from China the amp NG98 MKII, that for me sounds very well, but... i can reach max 1/5 of the volume, before breaking everything. It seems to have a lot of power, much more than what...

Researching low cost DACs, I have come across the HA NG98 which I have not seen discussed much at all: HA INFO Audio Studio which features switchable DAC daughter boards (CS4398 or AD1852) offering 24/96 on Coax, upto 16/48 on USB (which is what I would use it for in the beginning) Which...