Who has a McIntosh C70 anniversary preamp? Thoughts?

Yes I did. The BHK blows away the RP5. I'm also considering the c2700 as well. I like the fact the dac module is upgradable and I can make more shelf space (no external dac). I dumped Tidal and only stream Qobuz and my massive ripped CD, DSD and SACD collection. 

When I bought my C2500, the only reason I didn't get the C2600 was because It did not have a processor loop which I need.  I am very happy and I am only using the stock tubes.  The DAC module is something I do not use.  You can't go wrong with any of them and it just well be the last preamp you will need.

Im now favoring the 2700

C 2700 or C 2600 if you want tubes.
C 49 or C 53 if you want solid state. 

+1

i don’t know the px of the mac preamps that you’re looking at but the Luxman C-900u preamp has tone controls and will be something you’ll own a very long time. they can be had in the 8-9k range if you’re patient(list 15k). i believe and as do many others that you will find it incomparable.