So for the time being, I've given up on my AC4 build both because I don't have the money currently, and the more I research, the more I realize I don't know very much.

I was googling stuff, and I came across Power Scaling. I have known about it for quite a while because of Egnater, but I didn't know what it was called, or what exactly it was or anything. I checked out quite a few websites about it, mainly Kevin O'Connor's http://www.londonpower.com/pscaling.htm
since I think he is the one who invented it.

Anyway, I was just wondering if anyone on here could teach me the theory behind it and maybe offer a schematic

Basically I would like to understand it.

Thanks, I'm a noob
Power scaling is much more advanced than you can handle if you're new to this. Check out Geofex and Elliot sound pages as well as the fun with tubes at angelfire. You'll need to learn much more about designs before power scaling.


Stick with it, and you'll eventually be able to grasp the tougher topics.
Well its not that I don't know anything, and I've spent hours on geofex, but I kinda see your point, still, if there are any "basics" to power scaling, I'd like to learn.
I'm not sure if they are the same thing, but VVR (Variable Voltage Regulation) is what I think of when I think of power scaling. It works by reducing the supply voltages to the power amp tubes, and the preamp tubes if wanted. This reduces the volume due to the fact that with a lower supply voltage in the power amp, less power can be delivered to the speaker.

If you are looking at just adding this to an existing amp, you can buy a board to add it to an amp. Check out www.hallamplification.com if your looking for that.

As far as a schematic to a possible way to use VVR there is this: http://yeomansinstruments.blogspot.com/2008/07/vvr-greatest-thing-ever.html

Overall its a very simple design to understand, its nothing special.
does the VVR allow the tubes to be completely overdriven? Because the point of power scaling, is to be able to fully overdrive the power tube(s) but still play at low volumes.
Yes the idea is to get the distorted sounds at a lower volume. It doesn't do it perfectly, but the idea behind it is to scale the voltage to the power amp. The smaller the maximum voltage swing that can be produced by the power tubes, the smaller the power delivered to the speaker.

VVR can scale just the power amp, or the entire amp.