It’s fair to say that integrated amps have evolved quite a bit in recent years. In that context, the NAD M33 may very well be the equivalent of a generational leap!
The newest integrated amplifier from Pass Labs is the pure Class A INT-25. This conservatively rated 25 wpc beast of an amp is filled with all kinds of high-quality parts that were specifically selected and assembled by one of the greatest amplifier design teams on the planet.