If you had to choose...

I have heard great things about the Revival...   there is a thread on them over at Steve Hoffman forum

I have not hear the others. That said, I've owned both the Carrera and the Carbon 7 mk2 SE and I much prefer the Carbon 7, and this is the speaker Fritz is going to continue focusing on. Here are a couple reviews:

Written and video

The Carreras' Be tweeter is quite bright and if you have the ear and room for it, quite lovely. But it's a much more difficult tweeter to live with, longer term. That's how things wound up playing out for me.

In short, I'd get the Carbons.

I attended AXPONA this year, and the Alyssa was one of the speakers on my list to hear. They are pretty bass heavy, though they were playing music to emphasize that, and might be a bit much for a room that size. On the other hand, given your low volume listening, they might be just the ticket to getting some low end in the mix. 

65db or lower sound pressure, is pretty low. IME super efficient speakers do way better at low volumes like that. Although not necessarily hard to drive your choices are all low ish sensitivity. Ever think about something like a Heresy 4?

I always recommend limiting your selection to efficient speakers.

Think long, think future amps, think ease of trying tubes: get/keep yourself in a lower power needs situation which has the advantages of: more competition/availability new or used; less cost/weight/size/heat and more placement options (consider remote signal path also).

i.e. efficient enough to need lower power but still get enough power for instantaneous peaks. That's also why I chose the Furman P-1800 with 45 amps ready in a split second

Furman P-1800 PF R

@elliottbnewcombjr 

Efficient speakers are a good way to go. It's sometimes hard to know when a speaker is efficient because the numbers need to be accompanied by the impedance curve. Fritz speakers work well with lower power.

Fritz: "Very easy load on any amplifier including low powered tube amps. See Impedance & fantastic phase curves below."

You’ve zeroed in on some great choices.  The Fritz and Revival monitors are very likely “can’t possibly go wrong” choices, and I’d just go by which seem to exhibit the sound characteristics you’re looking for most.  The Alyssa, while no doubt a great speaker, has gotten some mixed reviews and seems to be more “voiced” to a certain sound and may potentially overload your small room with bass so I’d wanna hear those first before buying if I was you.  Given you do a lotta low-level listening I’d add the Reference 3A MM de Capo BE that, like the Fritz and Revival, are likely can’t miss speakers sonically but may play better at lower volumes given their relatively high 92dB sensitivity.  But of those three, again I’d go with the ones that seem to really nail your personal hot spots most.  FWIW, and best of luck.

All well regarded choices, but it's such a personal choice.  I'd be sure to at least hear them, preferably in your room before parting with the ATCs. 

All well regarded choices, but it's such a personal choice.  I'd be sure to at least hear them, preferably in your room before parting with the ATCs.

Deep truth. 

Fritz has a money back guarantee. I believe he found a way to reduce the cost of shipping by a fair amount. It won't cost a lot to try them.  My two cents: call him.

Why not move up the ATC ladder. SCM 19s or 40s. They get better.

Do they get better at 65 db? He listens very low. 

Why not move up the ATC line?  My wife's system has the ATC 20 passive on Sound Anchor stands with Herbie's Fat Dots and they are haunting (disappearing), dynamic and wonderfully balanced.  Driven by Luxman 509X.

I've nothing more to add as I've no experience with your stated candidates.  Best experience finding your happy place.

I have Fritz Rev 7 SEs that I run in a small listening space not much larger than yours. I often listen at volumes lower than 65db, in fact I’m listening right now about about 45-50db and they sound fantastic. Even at this level they disappear and have a wide deep soundstage with excellent detail. They sound even better turned up, but they do very well at low volume. I would highly recommend Fritz speakers for what you are looking to do.  I have similar musical tastes and they excel with these genres.  Honestly they do well with anything I listen to regardless of genre.

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!