No way to try to explain this without getting technical. All I know is class D is called a switching amp and doesn't need the large heavy transformers other amps have plus they somehow put out a lot more power too. That's what makes them so light and also makes them a big winner for stage use. All the newest powered PA speakers from JBL, Yamaha, EV, QSC and others are now using class D amps.

I needed to upgrade my stage rig and I bought the new EV ELX112P powered speaker for my keyboards. It's only a 12" but that thing is a beast and it only weighs 36 pounds. I've done two gigs where I've played bass through it plus some big band gigs with all those loud horns and it's great. Small, clean, very powerful and it looks good too. It has a 600W Class D amp plus neodymium speaker magnets. Whole new world compared to old style boat anchor amps and heavy ferrite magnet speakers. I have an old 500W Peavey power amp that weighs over 50 pounds.

For home use though and comparing absolute sound quality I'll defer to Mac. He knows this stuff, if he likes the sound of the heavy transformers in your quiet living room great, that's not so important at a noisy live gig.

Bob

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