SMSL SAP-1 Class A headphone amp for 90$?

So, ehm…
It technically is a Class A, a fully integrated Texas Instruments Class A. The TPA 6120A2 (marked 6 in the picture below) to be exact. To all of you on board this hype train, that chip may be familiar.

Implementation looks to be just like in the RNHP: An exact implementation of the TI reference circuit.
In difference to the RNHP, there is more filtering between the power plug and the TPA6120A2

Honorable side note: HUGE seperation slots between high voltage (power input) and low voltage (audio in).

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