Help with upgrade from Marantz 6011


Hi, 

I'm considering upgrading my Marantz 6011 receiver and wanted to get some help.

I use it for both home theater (7 channels) and music.  The speakers are B&W 705 S2 with the matching center channel.

I'm considering migrating to the Marantz 7015 as I've been told the power supply is an upgrade from the 6011 and I should expect to hear an improvement when I'm listening to music.

My other thought is to go to the Arcam and Anthem.  

Any comments?  

Thanks a lot
golfercurt
Baby steps. Going to another AVR is baby steps. Will you hear a difference? Maybe. Probably. Will it be worth it? Who knows! What I do know, for what that component "upgrade" costs you could get way more improvement any of a half a dozen different ways. 

Always improve what you have first. Only when it is tweaked out to the max, only then think of upgrading a component. 

And then never from one AVR to another. Worst thing ever in the whole wide world of audio, the AVR. Anything will be better. Don't take my word for it. Go and listen. You will see. 
If your the kind of person who likes to continue to upgrade then separates is the way to go. If you just need a little more power and then your done...then just get a receiver 
Do you listen to multichannel music or is critical listening more 2-channel?