$7000 preamp vs $700 receiver - Is the difference THAT significant?


Current setup:
Marantz SR5005 (AV Receiver) + Peachtree Amp 500 + BluSound Node 2i + GoldenEar Trition 2+ = Current Setup

I'd like... no, want... no, desire... to add "Blue Meters" to my setup.  McIntosh haunts me.  For dozens of years.

My quandary:
Acquire a McIntosh C52/53, maybe C2600/2700... vs something like a Marantz AV7705 (or AV7706 appears it was just released).  Yes I know I'm comparing brie cheese and cheddar.  I'm more concerned with the notion that I can get "as good" sound out of that Marantz preamp, as I can from those McIntosh units... (ignore the multi-channel notions for the moment)

Is my sonic happiness "that much better served" by a McIntosh $7K unit vs a Marantz $2-3K unit?  How much difference can I expect?  
rabbottmke
Let’s be real. You can do better than Mac, much better. But if that’s where you have set your bar, then go for it. The Mac will be much better than what you have now and better than what your dealer is trying to dump on you. If you don’t believe it, have him lend you that Marantz AVP and the Mac for a weekend. Listen to each in your system for a day and then make up your own mind.
Depends on the room acoustics and listening environment honestly.  If you are in a crappy room... it’s not worth the price of admission.
You might want to try an Anthem STR Preamp and then team that up with either the STR power amp or the P2 power amp, or just get the Anthem STR integrated amp.I currently have 2 of the P2 amps in 2 different systems and these things are built to last and can drive any speaker that you can buy no matter how much or how little they cost, or how low the ohms drop they will play it down to 1 ohm without shutting down and they do not get hot just barely warm.
any avr unit sounds like crap for 2 channel audio. There are some very good integrated amps out there too, some integrated amps have built in dacs/phono preamps/streaming services built in. If you want to save money, get an integrated amp. If you want the best sound for each component, go with separates. No built in dac in an integrated amp will sound anywhere close to a separate dac, not even from the same vendor. Same goes for phono preamp, the preamp itself, and the amp. An integrated amp is a compromise of components. I have owned many integrated amps for the last 20+ years and always go back to separates for the best sound. It will cost more money so you have to determine if its worth it.