As an owner of a "modded" 333ES player I can speak from some experience... I think the money I spent was worth it for a variety of my own reasons but my advice to you would be not to mod the NAD and my reasons are:
1. It will void the warranty and while I had no problems with my NAD 540 when I owned it there have been reports/discussions about the "reliability" of some of NAD's cdps. If there is a component failure then you will have to pay for the repairs regardless of the fault.
2. The probable cost of mods may be similar in net outlay costs of selling yor 541 & purchasing the Rega 2000. Possibly more to mod...
3. The 541 in my opinion is a very nice player at its price-point and there doesn't seem to be much previous discussion of anyone modding this particular unit and therefore there is very little feedback to go by.
Good luck with your decision
1. It will void the warranty and while I had no problems with my NAD 540 when I owned it there have been reports/discussions about the "reliability" of some of NAD's cdps. If there is a component failure then you will have to pay for the repairs regardless of the fault.
2. The probable cost of mods may be similar in net outlay costs of selling yor 541 & purchasing the Rega 2000. Possibly more to mod...
3. The 541 in my opinion is a very nice player at its price-point and there doesn't seem to be much previous discussion of anyone modding this particular unit and therefore there is very little feedback to go by.
Good luck with your decision