I do not have any experience with vintage gear. These two amps are different power but I believe the lesser power Marantz likely has enough for the pair of HED 1230's (Cerwin-Vega) I just purchased. I was just wondering which might have better sound and/or build? (Marantz $110; Sansui $75 but comes with A-700 Tuner and deck, neither of which I really need.)