I've owned both and prefer the LS100 which in my system produced deeper bass and more body. The LS36.5 is a tad quieter but leaner throughout. Both are excellent (outperforming my ARC LS26 easily)and your decision is really one of system matching. If you want to add just a touch of warmth then the LS100, if you want a more neutral presentation then the LS36.5. I also like that you can tube roll with the LS100 and the built in headphone amp is excellent and certainly nice to have. Finally, you can always add Dan's excellent DAC or phonostage to the LS100 which is not possible with the LS36.5. Given the entire package the LS100 has to be one of the best bargains out there at the moment.
