If the Creek phono input boards are available, there's no real advantage- you already have the power supply in your amplifier. I added a Creek phono board to my 5350SE a few months ago, and it was relatively easy, despite the lack of any instructions from Creek. My only problem was stripping the heads on a couple screws trying to remove the case, but I found replacements at my local hardware store. BTW, I'm very pleased with how it sounds- a very nice phono section for not too much money.
