Keep in mind that Musical Fidelity P170 is a power amp, and it needs a pre amp like Musical Fidelity 2A, unless your CD player has a volume control built in (probably not).
Adcom pre amp will also work with it. Adcom combo is ok too.
Take the time to hear them your-self, and keep the one you are happy with.
You might want to read a book on hifi - if you have the time - as recommended on the thread above - you will make a more satisfying decisions down the road.
Many people getting into this exciting hobby stays on it for life - ever improving and tweaking. Reading a book on the subject will be a good start.
If you don't have the time, you can ask questions here 'til you are satisfied.
Adcom combo is a pretty good choice - if google search for reviews, you will get positive feedback on them.
I hope you find good sounds at home...
Welcome to this exciting hobby.