Warm Tube Amp(s) to Tame Hyper-Accurate Speakers?

Keep the amp, sell the Spendors. No amount of front end, cable, or source changing will fundamentally alter how a speaket is voiced, and if they're too hot, they're too hot.

hold on a second... what speaker cables are you using to connect the 275 to the Spendors?  That might make all of the difference in the world here.  Let us know before doing anything drastic.

Perhaps it’s not your equipment but your room acoustics.

I bought Splendor D7's based upon all the fabulous reviews a few years ago now, but have regretted it as soon as they arrived.  This D series is not my idea of a great English loudspeaker. The upper kids and lower treble range is sublime on perfect recordings, but unfortunately those are not the majority of my vinyl recordings that I have purchased during my 50 plus year hobby. I love transparency, but bleached sound is not for me. I even have older tube equipment that is more mellow than most SS sounding modern tube gear is to me.  I don't get the hype for this series personally.

jwpstayman nailed my first thought exactly. What SC’s are you using? I bought D7.2’s soon after they came out replacing the former D7’s and in my well treated dedicated listening room with all tubed gear they have never sounded bright per se to my ears but yes, speaker cables make a huge difference in my experience. I have Cardas Clear SC’s and Auditorium 23 SC’s and the Auditoriums really tame the highs with the Spendors.

The Spendor haters kind of tick me off until I calm down and remind myself that there is no reason to give two sh*ts what they think.

System synergy is real. It could be your choice of amp, preamp, interconnects, digital rig, or room or all or some in combination.

Auditorium 23’s are amazing speaker cables. They are not easy to come by new at the moment so you may need to source a used pair. The Auditoriums with my Spendor 7.2’s and with my Devore O/93’s (I rotate them every six months for grins) do tone, texture, timbre, and space better than my Cardas. The Cardas excel at dynamic drive, snap, pin-point imaging, and deep bass.

If you check out the gear used by S'Phile reviewers, last time I checked more than half of them had Auditorium 23 SC's in their arsenal. For ~$900 new they are amazing.