Topping A90 Discreteheadphone ampfeedsGrado Labs GS3000eheadphones
Used together in 1 real system
Not enough data yet
We do not have enough specs on the Topping A90 Discrete and Grado Labs GS3000e to judge this pairing yet.
What the compatibility check found
Physical Connectivity
Couldn't verifyConnector matching does not apply to this pairing
Headphone Impedance Matching
Couldn't verifyMissing impedance specifications for headphone matching
Add output_impedance for amplifier and impedance for headphones