Thoughts/Advice on replacing a 20 year old system


Hello all,
I’ve finally decided to replace most (or all) of my existing 20+ year old system, and am hoping to not make a bad decision.

I’ve listened to, and liked, a McIntosh MA352, which has no digital inputs. This system will be 99% for CD and Tidal MQA music listening.

I’m leaning toward using a NAD C 658 with this integrated amp, although my single local audiophile dealer does not sell NAD. It supports BluOS, Roon, and MQA, and is reportedly far superior to the Blusound Node 2i.

My concerns are:

1. Will I run into any issues using the C 658, with it’s onboard pre-amp, with the McIntosh? I’ve never ventured into this realm of kit, and am unsure of the technology "gotchas" of mixing these two units. I almost wish that the C 638 didn’t have the pre-amp, since the MA352 has that, but I may be missing something obvious to experienced users.

2. Although I have no desire to use this system as a home theater setup, would I be "better off" with an McIntosh amp (MC152 or MC 312), and using the NAD as the DAC and pre-amp.

3. I lean toward the NAD C658 because of it’s support for BlusOS, Roon, MQA, and because of the availability of upgrade modules. With the way technologies are changing, I’m thinking the ability to upgrade is a desirable feature.

4. My budget for the amp and streaming unit is somewhere in the $8-12,000 range. I’d appreciate any advice/opinions on the items I’m considering, and any good alternatives that I have missed in my research.

Thanks in advance.
KB
kittyb
Not to crazy about MQA. Switched to Qobuz HiRes. I am still using Node 2i; it sports a good DAC. MF M6si is my new, and great, integrated amp. Considering upgrade of the DAC to RME ADI-2 DAC -- I am not even sure it will be that much better. It is not that easy to improve on the DAC these days because they are all very good and therefore similar.
Rogue sphinx v3, wharfedale lintons, ortofon quintet blue, pro-ject classic evo, and a musical fidelity v90 dac....stellar sound at a reasonable price for an entire system. Throw in your choice of streamer and be done.
Extras....a vintage tuner and cassette deck and man, what else you need??? 
We both like the MC352. Suggest you immediately scrap the NAD preamp and move up, up, and away from similar products. For example, there are plenty of Mac preamps out there (new or used) that will be way better with the Mac amp you’ve got.  Add whatever Digital or Analog that you like, but this way you’ll have a nice foundation.  Good luck.
If you are headed to LaScala or Khorns, 75 wpc will kill y’all- consider a nice Mac preamp and 275 power amp and a dedicated streamer dac

btw the new Cornwall looks promising and will have deeper bass than the LaScala 
The MC352 is an integrated the NAD was going to just be used as a streamer in the proposed setup hence the conversation about streamers and Dacs. And KB the Node has both coaxial and optical digital outputs to connect to an external Dac.