Emotiva A-5175
The picture shows 8X10,000 uf/50 V. So to be on the conservative side, it is reasonable to assume they have to group 4 of them in parallel and then put the two groups of 4 in series for them to work with the rail voltage with sufficient safe margin.
4X10,000 uf in parallel = 40,000 uf
2X40,000 uf in series = 20,000 uf
That's a total equivalent capacitance of 20,000 uf at 100 V (50 V per group of 4). Emotiva can get away with a less storage capacitance most likely (not 100% sure without seeing the schematic diagram) because the equivalent 20,000 uf are shared between the 5 channels, and we all know it is rare to have media contents demanding peak current simultaneously, except 5 channel stereo.
View attachment 27792
Outlaw Model 5000
Below are Gene's comments in the linked
Thank you @PENG .. so running either with just 3 of the 5 channels should give more power output per channel right ? Does the difference in capacitors config provide either amp an advantage in this regard ?