Audio Note : amp and source matching

Long story short:
looking for upgrade my system. In general, I want to have simple system - one source (CD player) and amp.
Last month I auditioned OTO Line Signature vs. Meishu Line vs. Meishu Line Silver. OTO was really good, but Meishu Silver made me almost cry - how beautiful it sounded, and how much more expensive it is, than I can afford... Honestly, standart Meishu didn't impressed me a lot.

And lucky, I found pretty good deal on Audio Note P3 Silver (3oob tube amp) with a lot of upgrades. It's power amp, but with volume control, and could be used with one source. 
But I really don't get technical details about matching impedences between source and amp, and if it would be good match. At the moment my source will be my Yamaha CD-S2100 player, later on the road I'll try to buy Audio Note CD 3.1x/II one box player.

Maybe people with more technical knowledge and Audio Note afficionados could help me with advise . Will it work with these specs, I have:

Audio Note P3 details:
- Input impedence: 100 KOhm
- Input sensitivity: 450mV for full output 

Yamaha CD-S2100 details:
- Output Level (1 kHz, 0 dB) SA-CD/CD: 2.0 ± 0.3 V
- Output Power:

• SA-CD: 1.89 mW (max)
• CD: 1.36 mW (max)

Audio Note CD 3.1x/II details:
- Output impedance: Less that 2 kohm 
- Reference output: 3.0V RMS (approx.)


Matching tube 8-10 W amp with my speakers shouldn't be problem - they are two way with simple crossover, 96 dB and 8 Ohm.

Also, what I'll be missing and what sound properties, beside more inputs, should be better with, let's say, Audio Note M2 preamp?