It seems as if efficacy of this device is questionable. It helps in some cases, hurts in others, such as with high end DACs that reclock everything. With a linear power supply some induced noise is reduced, but now you’ll add another couple of hundred bucks to this $150 device.
The question is, how will this work with a PS Audio DAC? I know some people here have had good results. It’d be nice if we could get this tested.