Best used speaker under $1000 for tube low watter

Although I haven't used them with tubes, the Meadowlark Kestrels would work nicely for you. Before purchasing mine(used) my research found many a recommendation from tube users. Mine are the Hot Rod version. They are unobtrusive and easy to place, from my experience. A step up would be the Shearwaters. Both are sold regularly here used. Good luck with the search.

It's going to depend on your taste with the Omegas. I have the Grande 8s. But you would probably be happy with the Omega 6s or the Omega 3s as well. Don't let those little 3s fool you. I guarantee you will be trying to come to grips with how much sound comes out of them! The 6 models are probably the most balanced. The 8s are more up front but fuller to me.

Basically the Omega 3s will sound like your on the 5th row of the venue.The Omega 6s will put you on the 2nd row and the Omega 8s put you on the stage. The sonic signature is the same, just personal preferences will decide which one works best for you.

Also Louis has been working on some new cones made from hemp.That's the cool thing about these speakers. To change the sound just swap out the drivers to different drivers that will work in the same enclosure.No crossovers to worry with.

I'm waiting to see what his larger dual driver speakers are going to sound like(with 6 and 8 inch drivers). Should be more dynamic with a little more impact. Mated with a sealed sub this isn't a big issue with the regular models.

I also like the Soliloquys.Maybe one of their monitors will work for you.

Anything Spica

Contact Steven at "Quest for Sound".....He is a dealer here.
He is a tube guru and sells lots of tube power and speakers that work with low power.
I heard a pair of Consonance Eric 1 monitors there 2 weeks ago being driven by a 2A3 amp that was absolutely engaging and amazingly full range. I am a full range speaker listener and these monitors blew me away especially after asking what the price tag was. Less than your budget new and he'll sell demo as well. Trust me! He is worth talking to!

I'll second Bryhifi's recommendation of the Eric-1s. I heard them in January when Quest for Sound was at THE Show in Vegas, and I was extremely impressed.

Another possibility is a used pair of Tyler Acoustics Taylo Reference Monitors. They should be about $1000 as well.

---Dave