How about small monoblocks weighing only 35 lbs, 100 watts 8 ohms, doubling, quadrupling in 4 and 2 ohms, only warm temp Class A. Westminster Labs REI solid state-on all the time and always ready.
I used 35 to 120 watt, stereo and monoblock Class A/B tube amps for 50+ years. No need to run hotter, tube dependent amps any longer. Game changer!