Why don't higher end amplifiers come with a separate power chassis?

Many higher end preamplifiers come with separate power boxes, but I don't see amplifiers with separate boxes, any idea why this might be?

emergingsoul01-07-2023 12:44am

goofyfoot Details Discussions Posts This discussion Message User 1,388 posts 01-15-2023 at 08:58pm Copy Comment URL Report Comment Edit Delete My amp has two power supplies and a battery.
goofyfoot Details Discussions Posts This discussion Message User 1,388 posts 01-15-2023 at 10:37pm Copy Comment URL Report Comment Edit Delete @emergingsoul NAIM is a British company. Their equipment is very well made. I’d say the NAIM sound signature is similar to that of McIntosh but priced a bit lower. I heard from a NAIM dealer that their flagship line of amplifiers do come with a separate power source.