What's the best Phono preamp under $1000??

Indeed, a few ARC PH3SE on sale here. Can not be beat at the used asking price ($1200.00) and you can roll tubes easily. 6922, 7308.
Good luck in your search. Sly

I'm really blown away by my battery powered Musical Surroundings Nova Phonomena. Very dark blacks, super quiet and most importantly very musical. $1000 new and a good bit less when found used. I am also using the Mitchell Gyro SEMK2 and have chosen the Dynavector 20L as the cart and with my Cary SLI80 and Gallo Ref 3.1's it's a good match.

In my opinion the Plinius Koru out performed my Audio Research PH7. I know different strokes for different folks and other equipment can make a difference.

Many people look down upon the small Clearaudio Basic. But is a real bargain. The Bluenote phono 1 and 2 are also very good.

The Sutherland battery-powered PhD might be a good low-noise alternative to mate with your ARC. I've seen a few, used, at $1100-$1200, but you might get lucky and find one within your $1000 budget...or convince yourself that 'just a little extra' is warranted. I gave up the struggle to keep exactly within budget years ago!