Hello Sorlowski. I have never heard the manley neoclassic, however.... The 805c's partnered with the supratek is a marriage made in heaven. Far and away the best combo I've ever heard in my rig. They really seem to compliment each other in a synergistic way. The superb clarity and bass speed of the supratek seems to offset the rather soft and bloomy bottom end of the cary. The midbass/lower bass performance of the cary 805c is it's only real liabilty in my books, and surely must be considered one of the finest sounding amplifiers of all time. I'm still kicking myself for selling my pair, especially after hearing them again with a kr 300bxl driver tube[instead of the stock chineese 300b] Man..... what a revelation that was! Unfortunately... I didn't have my supratek at that time to hear this combo sing together. Bet you can't guess what my next pair of amps will be?