By a mile. But you definitely need the power cords with them, or you won't get anywhere near the performance. Without them the RF issues with the Sunfires mean that you won't hear the detail they're capable of.
The 600s are not in production anymore, so only available second hand, and they usually sell pretty quickly. Average price is probably 1500 or so per unit. (Note that the Marigo power cords are quite expensive, so they add significantly to the cost of the amps. But you can try them for 30 days without obligation.)
btw: What do the Spectrons cost?
The 600s are not in production anymore, so only available second hand, and they usually sell pretty quickly. Average price is probably 1500 or so per unit. (Note that the Marigo power cords are quite expensive, so they add significantly to the cost of the amps. But you can try them for 30 days without obligation.)
btw: What do the Spectrons cost?