The McIntosh ma252 has a dedicated Class AB amplifier coupled to a Tube based Pre-Amplifier section. It is a hybrid, but it is all classic McIntosh. In fact, in bench testing it hits 200+ watts at 8ohms and is almost 320 watts per channel 4 ohms. That is plenty of power and at its price point (+/- $5,000), this Integrated is a beast. No built in DAC or optical outlet slop, this retro amp can have a outside streamer be added (Marantz ND8006) to stay current.