I've owned/used an MC7200, MC2100, and the MC250 over the years, and all these SS amps have the classic tube-like warmth and neutrality of a great vacuum tube amplifier. The only amps that can sound warmer (ie: more tube-like) than any SS Mac is an actual McIntosh tube amp!
To me, the classic McIntosh sound is accuracy; being faithful to the recording without drawing any attention onto itself. What you hear is the music in all its original, uncolored glory. Whether it's solid-state or driven by vacuum tubes, direct coupled or uses autoformers, all McIntosh amplifiers possess this ability to make the best recordings you own a truely "live" experience! They're that good!