I am looking for a balanced dac/amp combo. I’ve been eyeing the at Aune S6 and the Jotunheim+Dac module as well as the Gustard H20A. I’ve not managed to find anywhere to audition any of these so I am leaning heavily in reviews and the audiophile community for some help. I am leaning towards the H20A to power HD650s, AKG K702 and a few other cans. in terms of music, I have an eclectic collection from classical, to pop to metal [depending on the mood]. Any thoughts/ opinions?