Speakers for newbie

I'm not familiar with the P6, but B&W generally need lots of power. Despite the power rating on the Marantz, I don't think you can drive them to their full potential.

There are some very good full-range speakers listed on Audiogon - in your price range - that I think would make a better match.

At your budget level, I would recommend the PSB Image or Imagine line of speakers. You can get the Image T6 for about your budget price new and it is an exceptional speaker for the price, very close to their Synchrony line. they also make other floorstanding and bookshelf speakers and work well for both music and HT. Paradigm is another good brand offering great bang for the buck.

Thx Guys,
regarding the PSB Image T6 - the nominal impedance is 6 ohms, minimum 4. Marantz output is 8.

This is from the manual:
FRONT A
6 – 8 Ω
FRONT B
FRONT A + FRONT B 8 Ω
CENTER
SURROUND 6 – 8 Ω
SURR. BACK / AMP ASSIGN

@Seditious3 - do you have any recommendations?

Get vintage Klipsch Heresy. In good condition they're arround $500.