Next Best Upgrade for Tidal MQA?

I will add R2R DAC like Denafrips Pontus 

I also have a Marantz AVR for HT purposes but run a Primaluna integrated for the mains and only use the Marantz via HT bypass. Getting rid of the Marantz for your mains will definitely be a successful upgrade. Also I use the internal DAC within Bluesound Node 2i and have no issues with sound quality running through the tubes.... the MQA files sound legit, dope, or whatever the kids say these days. 

 ***I literally only use the Marantz to drive the center channel for movies and NPR on Sundays for "Wait, Wait, don't tell me" Otherwise it just collects dust. 

My source is Bluesound Vault streaming Tidal and Quboz. Sends signal to JC2BP and then A21. Have yet to hear a DAC/streamer that beats out Vault plus JC2BP combo in shootout. DAC/streamer costs were in 2-4K range I believe. JC2BP is fine.

@alephresearch2

How do you "disregard MQA"?

I have an unusual configuration for TIDAL.
Android with UAPP+Bit Perfect>OTG cable> USB to SPDIF converter>Straight Wire 75 ohm coaxial cable> Classe SSP-800 DAC. I can get 24/96 Bit Perfect first MQA unfold.
It sounds good but I would not mind "disregarding MQA" to get a straight up 24/96 (FLAC?) but I did not think you could get 24/96 without MQA. Did I misunderstand your statement? Thanks.

@bruxesq

1 - stick to replacing the marantz with a proper preamp
2 - be careful when posters with a grand total of 2 posts tell you you should buy a $4000 digital appendage like an m scaler (don't get me wrong... a m scaler is a good piece, i have one, but it should not be your priority... not even close...)