I had a 500C about 40 years ago. My father in law gave it to me, but when we moved he talked me into leaving it in a closet. I think he was afraid he might have to lift it again. That 500C replaced a 450T I bought when I was still in high school in 1972. I was driving Electro-Voice SP15TRXII 15" coaxial with a mocified T-350 tweeter mounted coaxially in a 15" woofer with a massive motor structure, die cast basket, cloth surrounds. Built the cabinets from EV plans. I now have an early X202 integrated amp (7189 outputs) and a 400 receiver as a daily driver. I drive Vandersteen 2ce Signatatures with no problems at all. Soundstage and imaging are stunning. Low end authority is surprising. Vandersteens don't play exceptionally loud but they play as loud as I would ever want to listen, and louder than my wife would.