[FS] [USA] Massdrop O2 AMP $53 shipped.
mint condition, works great, has one threaded screw on it, but its never been opened. sounds great for 100 ohm and under cans, i wouldn't use it with planars personally, but its up to you.
original price is $94 direct from massdrop.
no original box. but the original power supply is included.
location - Indiana
Headphones: Sennhesier HD660S
AMP: Schiit Asgard 2
DAC: Schiit Modi 3