Power sharing spec?

[RobinC]

Ive read much on the concept multi channel AVR amps sharing power among channels or hat all channels do not need all power at the same time. This allows the modern AVR to provide a function amp for less cost then a ACD amp. Ive not seen mentioned a spec or metric that helps to quantify All Channel in Use (vs All Channels Driven). From a laymens POV I would think a baseline of how power is distributed to all channels would be created by using a sampliing of modern ATMOS movies and recording how power is distributed/vs time. From this build an amalgamation of power needs vs time into a benchmark test that would measure the amount of time a need is exceeded or a channel power need cannot be met. An exceed is measured using THD or some other method but ultimately resulting in a % of time a power need is exceeded over the total benchmark test. Does anything like this exist?

 

[lovinthehd]

AVRs generally share a single power supply for all their discrete amps. You can look up bench testing for a given avr for ACD test results if you're really concerned about it for a particular avr. The methodology you mention I haven't seen and I'd think would need to be done with a wide variety of gear/systems/rooms to be very meaningful. Most avr spec's do not provide ACD, altho some will provide a percentage as a guaranteed minimum....