R2R DAC paired with vintage Marantz ...too warm, or a good match?

[Pekka72]

Hoping some of you can share some insight before I make a purchase:

I have a Marantz 2325 driving a pair of 4 ohm AR11 speakers, and currently have a sub $200 delta sigma DAC connected for streaming and CD. The turntable connects directly to the receiver. All three inputs sound great.

But...

I was thinking about switching out the DAC for the FIIO F11 R2R. Never heard an R2R DAC before, and the common opinion is that it's a more analog/warm sound.

I'm a little conflicted: Would the R2R Dac, more closely match/complement the tone of my old 70's analog gear for the digital inputs, or would a warm dac combined with a warm receiver make things too muddy? Am I better off with a more crisp sound given the Marantz's typically warm characteristics?

I have the FiiO K11 R2R that’s fed signal from a WiiM Pro Plus streamer. It’s run through my Yamaha C-65 preamp into my Perreaux PMF 1850 amp (early Hitachi T03 metal can MOSFET transistors) which has a warm or softer sound than the Yamaha M-65 it’s replaced. My KEF 104/2’s have never sounded better with this combination.