Lots of questions.....
Is there a way to expand the John Risch filter to have more outlets?
What you see is what you get. The box is pre-cut with room for two duplex outlets. There just isn't room for more on the current box. You can use multiple boxes for applications where you need more outlets.
If I were to use a JRF, would I be able to plug a power block into it & still get the sonic benefits to the remote outlets?
Anything plugged into the outlets on the box is going to be isolated via the filter network. The sonic benefits highly depend upon your AC line conditions and the sensitivity of the equipment you use.
Will this filter be able to handle major power amplifiers or is it designed for source components only?
It can handle any reasonable load your going to use. Some people talk about dynamic compression with power amps. I'm skeptical....I have yet to experience it and from an engineering perspective there is no reason that the filter network should be limiting the dynamics of a properly designed amplifier.
Is it easy to put together?
That depends upon your skills. Some people are gifted with many thumbs and would be better off buying something assembled rather than a kit. The network itself is simple... two inductors and four capacitors. Most of the complexity is in wiring and following the directions. I'd say if you are someone who could wire a room or enjoys building things the kit is relatively simple. If you are someone who cannot change the oil in your car then you might be better off with one of the many pre-built solutions on the market.
