Do the NC500 buffers work on the Purifi modules? That would be nice for a guy like me to try. Just swap 2 amp modules. Cable swap maybe?
jaytorNot saying which are better Class-D modules but yes!! my NC500’s took a giant leap also, with big linear power supplies, made me realize smp’s no matter how well designed are not very good for audio.
And then there was another jump again going direct in, with no input buffer, so long as your source has the gain, and <50ohm output impedance output stage/buffer.
They are basically compatible. The NC500 has a clip output which the Purifi board does not. The NC500 recommended op amp supplies are +/-15v where as the Purifi module recommends +/- 12V, but the Purifi max rating for this supply is +/- 20v, so you should be ok swapping in the Purifi module in an amp designed for the NC500.