Another XPA-2 question for electronics gurus.

[emotifan]

I've always been confused as to why twelve 15,000 uf storage capacitors wired in a series / parallel configuration only adds up to 45,000 uf of capacitance, so I read up on it and now have a fundamental understanding. If I'm correct the twelve capacitors must be divided into three groups of four wired in series with each group then wired in parallel to come up with 45,000 uf. My question is why use twelve capacitors at all if wiring three single 15,000 uf capacitors together would equal 45,000 uf?

The fact that Emotiva's most powerful stereo XPA amp has the lowest storage capacitance of all their amps of any configuration has always confused me. However I did just go ahead and order one before the sale ends. I want to see if it's an improvement over my Adcom GFA-5500 which I've been quite happy with for about five years now. I've yet to send any of my Emotiva purchases back since each has been an improvement in sound to what it has replaced, but I think the Adcom is going to be a tough contender. If it stays my entire system except for speakers will be Emotiva and balanced from source to amp. Having linked power up would be nice too.

[repeetavx]

While the value of stacked capacitors add inversely, the voltage capacity adds directly. In other words, two capacitors stacked, can handle the sum of their voltage rating.

[garbulky]

According to Lonnie the XPA-2 has a better slew rate. Not sure if that's related to the capacitance or not. Also the XPA-2 has a rather large power supply.