The weight of amplifier, largely, depends on its power supplies. Many look on rms power in specs to estimate how powerful the amplifier in question is but others look only at headroom i.e. peak voltage, current, their duration and level of distortions there.
In that regard, all amplifiers of all types (A,B,D tube, ss etc) will in the future benefit from ultralight weight FULLY REGULATED and LOW NOISE switching power supplies.
Today,as far as I know, only Jeff Rowland in their flagship amplifiers and Spectron in their pro audio amplifiers use this technology (again FULLY REGULATED and LOW NOISE). For illustration, Spectron (prototype) pro audio 8000 watts rms amplifier weight about 100 lbs.
Simon
In that regard, all amplifiers of all types (A,B,D tube, ss etc) will in the future benefit from ultralight weight FULLY REGULATED and LOW NOISE switching power supplies.
Today,as far as I know, only Jeff Rowland in their flagship amplifiers and Spectron in their pro audio amplifiers use this technology (again FULLY REGULATED and LOW NOISE). For illustration, Spectron (prototype) pro audio 8000 watts rms amplifier weight about 100 lbs.
Simon