a audio research pre would be best or a number other high end tube pre-amps. i've on several occasions the wadia 850 & 860 with the vt100.sounds really good but you need to get the cabling right. but its alot easier to do jutice to that amp with a good pre-amp[ls-5 mk11 or 111,ls-15].but i can't imagine a adcom anything sounding that good. please do right by that wonderful amp.
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