Critique my system...

Wasn't sure what section to post this in. I'm fairly new to critical listening and I've recently put together a system I really like. But my gut tells me it's just a little on the bright side. So, here's what I've got....what would you guys try next to warm it up a bit?

McIntosh MC60 mono-blocks recently rebuilt.
Audio Research LS3 solid state preamp.
NAD C546BEE CD player
Nola Boxers with about 100 hours on them.
Interconnects are just some older Monster stuff
Cables to amps are older Phoenix Gold
Speaker wire is new Monster XP

Thanks...I'd appreciate the advice.