Hello again, Jla- I'm certain that the Wadia straight in would work fine as long as the interconnects are kept relatively short. The question of pre-amp or not to pre-amp has been asked and answered many times here. There certainly is "cleanliness" usually found with no additional active stages. However, with a great pre-amp, the sound can be almost supercharged - not as clean or pure, but with better drive and authority. You'll have to find out for yourself which camp you prefer to be in. Trust your ears and listen for the emotional connection to the music, not just for detail. Good luck.