No, A300 power supply is internal. A300 is meant to be a < $2K product. If we design it with a linear power supply, then we need a bigger case, and also other changes, that will become a totally different product, a $3K streaming amp. But…..it is still an all-in-one amp, at that price point, customer could buy a Stream-9 + DAC-9SE + STA-9 and have near reference class sound. My point is, for ultimate performance, don't go with all-in-one product.