The bad news is they cost a lot more money and all you have to do is turn the x16 on first and off last, I dont bother turning it off even though my preamp blocks DC spikes.Thanks, yes agreed. DC bias in the output stage is a bigger concern when using DC coupled amps like Purifi or Hypex, and when replacement voice coils or drivers may no longer be available for your speakers. The good news is that the X26 Pro reportedly has very little DC offset and likewise for the Okto dac8 Stereo, nice.