Although a dead ringer for its predecessor, the TOPPING A50s is a headphone amp with specs that outshine the A50 in nearly every way.
Don’t Look Down
With a THD+N of 0.00007% and SNR of 143dB, the TOPPING A50s’ noise floor is so far down you might get dizzy. Compare this to the original A50, which has a THD+N of