SP1 will just work fine. NAD has soft clipping so it can potentially perform as more powerful amp.
None can assume weather you'll like the sound or not till you will try it and see for yourself. It's not hard to sell amp for upgrade when the mean time passes by.
None can assume weather you'll like the sound or not till you will try it and see for yourself. It's not hard to sell amp for upgrade when the mean time passes by.