Audio Research VT80SE amp vs Prima Luna EVO 400 or 300


It’s time to get a newer tube amp after years of happy listening to vintage mono tube amps- MFA M-120 to be precise. I will mate the new amp with my upgraded/updated MFA Luminescence preamp and power Sonus Faber Guarneri Homage speakers. The Lumi is deservedly a legend and has a fabulous phono stage, to boot.

I’ve read many reviews and comments about both the ARC and the Prima Luna gear but would greatly appreciate a response from folks who’ve had experience with either one or the other or preferably both.

My musical tastes are quite eclectic, but primarily "classical" and do not include heavy metal, nor much R+R or pop at this stage of my life. I’m partial to what some might call warm, romantic and "euphonic," and from what I know, Audio Research tends to be less "euphonic" than some other tube components. At the same time, I enjoy listening to subtle details that more syrupy components can obscure. Unfortunately, I cannot audition anything prior to purchase, neither in my home nor at a dealer.  After much experimentation, I am convinced that SF GH's LOVE tubes!

Thanks in advance. Stay safe. Be well.

PS
ps
To quote: "Lastly, seeing the note about biasing, it’s easy on the 75SE. Child’s play. And gives you one more thing to monitor and kid yourself into thinking you’re a participant ..."

My MFA monos are super-easy to bias. The meter is in front as are the controls. I am very comfortable in tube world. :). But maybe I’m just getting soft in my golden years and am starting to look into "set it and forget it." :)

If I go with PL, as good as the E34’s might be, I’ll likely try KT150. I’ll still feel as if I’m a real participant. :)

You fellow tubeaholics rock.

One other thing, is it absolutely the case that the 75SE must use balanced interconnects?  If I keep my Lumi pre I cannot do that.

Balanced only.  It’s a fully balanced amp, and you might want to give that issue a think.  Not sure how it would like single ended outputs adapted to XLR from an unbalanced pre.  Evo from what I recall is unbalanced (even with the XLR input options).  
Anyone know how good the VT80SE is?  Is it just a small step below the Ref75se or is it a big gap?  They aren't priced that far apart.
@jrw1971
Thanks for confirming that.  Then the 75SE is not viable, unless I get another preamp, which is not likely to happen.
@ps 
If your preamp doesn't have XLR output you could consider a PL Dialogue Premium HP used instead of the Evo 400 with plenty of money left over to try different 12AU7's in the center position of the amp to dial that sound you and the golden eared wife prefer.