I recommend the Mc152 which I’ve owned for about 8 years. It definitely has the McIntosh house sound: smooth, good sound stage depth and width, nice imaging, a touch of warmth and always listenable even with a mediocre recording. It sounds very much like my mc402.
I personally have found that the Hegel preamps do better with these Mac power amps than the Mac C47.
I add that the newer quad balanced amps (from 2004 or so) in my view are superior to the 30+ old vintage ones, which could sound a touch muddy. I owned a 2505. Obosolete.