“Oppomod” linear power supply

Thanks auxinput. What’s the difference between discrete vs monolithic regulators as it relates to sound quality? 

For Ivan and nonoise - were you using any AC isolation / conditioning prior to and with your 205? I’m using Equitech, Sound Application and mit Oracle p/c’s. 

I had the OPPOMOD linear power supply installed in my already modded Oppo 103 by EVS. EVS also upgraded the many generic caps to Pannies. I think the OPPOMOD LPS should be viewed as a somewhat expensive item that has the unwanted side effect of producing quite a large amount of vibration and magnetic fields that both affect everything in proximity including all the circuit boards. Now, there are measures to deal with those side effects that can be employed (such as decoupling the transformer from the chassis and isolating the circuit boards) but then you’re talking about a lot more mods. In the end I can’t say it was worth it as the total cost gets to be rather high, looking back.

Thanks geoffkait. I would use sorbothane to isolate the vibration and a mu metal wrap to contain the magnetic field. 

I also suggest not (rpt not) tightening the bolt holding down the transformer and wrapping the transformer *twice* with mu metal, maintaining a 1/2 inch separation between layers with cotton or whatever. Off the top of my head one layer is 73% effective and two layers are 90%. Cork works well to isolate the circuit boards and to damp the capacitor bank, weaving a serpentine strip through them.