Upgrading preamp. Best for under $1K

Again thanks for all the recommendations.

@soix i had the RC-980BX preamp and to my current RC-995, there was a huge difference in sound quality, especially in the bass region. It has a much better, tighter bass with better definition. The mid and highs also improved. I really want an upgrade where the sound in the upper region to be more dynamic and realistic without losing bass detail and definition. As far as impedance mismatch between pre and amp in my system, i am pretty close to ideal.

@highend64 

Im a little late to the party ... I would certainly give The Music Room a close inspection.  Several pieces of gear within you search parameters!!

https://tmraudio.com/components/preamplifiers/

BENCHMARK , Try to find a used LA-4 pre amp. New,  about 3 K. I have 2 systems, one manages each, like it that much, solid state. Robert TN

Conrad Johnson PF-R (purchased on eBay for $850) and no, I’m not selling you mine.

see if used Ayre preamps are doable for you....wonderful components