Do D Class amps use less or more amps?

[JMPisGOD 10+ year member]

I have a 2 channel amplifier, that bridges into 4 ohm mono.... does running the amp in 4 ohm mono act the same as running a D class amp as far as how much impact it has on your alternator? I read that Mono power amps put less stress on the alternator.... so when i bridge the amp into 4 ohm mono, will it change how much stress goes on my electrical system?

Thanks

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[Phatillusion 5,000+ posts]

Class D Mono amps are designed to put less strain on your electrical system. But that does not apply to class AB, bridging puts more strain on your electrical system.