Vendo
ZERO 637U 24/192KHZ DAC HEAD amplifier USB BB OPA637 chip
ZERO 637U supports Max.24 bit/192KHz input
ZERO 637U has unique preamplifier suitable for all kinds of impedance earphone
richiesta 120 €
https://www.amazon.co.uk/ZERO-637U-1.../dp/B00CG05VCO
