Understand your comments and may yet have second thoughts. Time will tell.
I am receiving full trade in value on the 1.2's, so for $1000, the better resolution and better soundstage seemed hard to beat.
The bass was an interesting decision. I am not wood working capable so to buy good frames is $500 plus. Compared to the $1000 cost to me for the 1.7's, their deeper bass along with the other quality improvements, seemed like the way to go.
Now the other interesting part. I talked to my McIntosh dealer about upgrading the MA63000 because I knew I was missing something on the edges and the decay. It has only 160 wpc into 4 ohms. Plus it just does not seem loud enough.
The dealer was not certain that the top Mac integrated, MA7000, with 250 wpc into 4 ohms. would help me.
He suggested that I try the Krell S300i. It has 300 wpc into 4 ohms. His reasoning was that I needed another view of what I could do and maybe Mac was not the answer.
At first I thought that it sounded tinny but once my tubed CD player and the amp "warmed up", I realized I was hearing more detail. For example, there is a Donna Krell album, I think that it is called "Look of Love", that has heavy brushes on track 2. It sounded real without hash at the point of decay.
The trade off is that the Krell sounds less "warm" than the MA6300.
So...to get the power I need and the Mac "warmth" I would need to move to Mac separates at about $10,000, which is not something I can afford.
Obviousily, I am thinking about a lot all at once here. I will get the 1.7's and go from there.
By the way, tell me again what amp you are using with the 1.2's?