If you had to choose...

Thanks everyone for all of this fantastic advice.   This is all very helpful.

I hear you all on the efficiency.  Yes, I listen at around 65db, for many hours a day and night. So, sound quality at low volume levels, and avoiding fatigue are top considerations.

@oddiofyl thanks for the review on the Revivals.  FYI, fellow Audiogoner nonoise wrote up an awesome review of the Revival Audio Atalante 3 for anyone interested entitled "Shout out to Revival Audio Atalante 3 speakers" 183204-355

@hilde45 - Thank you for the reviews and for the heads up on Carrera's bright tweeter.   That sounds like a non-starter for me.  I am listening easily 12-15 hrs a day.  I will speak with Fritz and get his thoughts as per your suggestion.

@zlone, @soix  Yes, I have read similar comments about the Alyssa's, so maybe not ideal given my current environment.  And I have added Reference 3A MM de Capo BE to my list!

@mofojo - Yes, I have been eyeballing the Heresy IV.  I forgot to mention that, so thanks for reminding me! This company has haunted me ever since we'd cut school and sneak a listen to Bowie on a friend's dad's Klipshorns (AK-6?) in the mid 70's. Blew my teenage mind!

@knotscott - Agreed, I will initially keep my ATCs for comparison, then if all goes well, then maybe sell them.  Yes, it is such a personal choice. So I am very appreciative for everyone's perspective.

@mashif, @celtic66   -  I have thought about staying in the ATC family. When researching ATCs for my purchase a few years ago, I seem to recall that the 19s just had a larger woofer than the 11s, otherwise very much the same, but I could be confused. I can't fit floorstanders, so the 40s wouldn't work. The ATC 20's are over my budget, unless I could find a super used deal... I do think though that my 11s prefer a bit of a higher db level than 65db to really shine.

I have been very happy with my ATC, just wanted to see what else is out there, given my listening space and volume levels.

Maybe I should just figure out a way to keep my ATC in addition to getting new ones!

Thanks again everyone.  I really appreciate it!

Cheers.

Thanks jastralfu.  I saw the Rev 7 SEs and the Ls7s on his website and was wondering about them, in addition the the ones above.  I will discuss these with Fritz as well.

Studio Electric M-4.

Hello Bogbeat!  Please, go somewhere to hear the Magnepan LRS+ before you buy your next pair of speakers. Unmodified, they beat almost anything under $10K, for detail and texture. Modified, they just beat nearly anything you can fit in your listening space. I know, they take up some room; need to be out from the wall; and need power (and good wires). A subwoofer helps. (Subwoofers are easy to build.) But - you can buy them with the $$ you save. Ask ne about power amps. I have been living with Maggies (on and off) for 50+ years. You don't have to spend a  fortune to have great sound. Enjoy the music!

I own the Fritz carbon 7s and a pair of Magnapan LRS+. Both speakers are great. However I believe the Fritz to be a much better fit for a 8x10 office over the LRS+. The LRS+ are a poor fit with the Black Ice tube amplifier.