Upgrade from Martin Logan Sequel II's to ????????

Since you like panels, look at these

https://www.audiogon.com/listings/lisbecib-martin-logan-montis-floorstanding-speakers-dark-che-77931-full-range

Although they're a couple generations old now, a step ahead comparing your ML's

Still relavant and better mids/highs than many current $10K speakers?

Long game-If you're a real LP fan, separate phono and upgrade from the AT OC9 to ART9(big upgrade for not much $)

The LFT-8B should fit the bill!

https://www.eminent-tech.com/main.html

Moving from panel speaker to box, prepare to have your soundstage shrunken in width and depth, you image specificity to suffer, your transparency to grow veils, and male (and some female) vocalists to sound chesty and boxy.  I estimate 2 weeks before you start regretting your decision to move on.

Thanks audphile1, There is a Dealer 10 min off of my commute in Saratoga. I will set something up.

soix, I'm not sure what exactly I am looking for sound wise. Something is missing.

jsalerno277, I agree on the DAC and the way I stream. Still not that happy with vinyl as well. If and when I do a speaker upgrade, the DAC and Phono Pre will be next.

tablejockey I not really sure I am a panel fan. I stumbled across them and wanted to give them a try. I will look into the ART 9. That was on the roster last year.

yogiboy as for the speakers you recommended, there is a dealer in Sacramento down the street where I used to live. I will set something up with him soon. I know the place.

jhnnrrs, I was thinking the same thing. I like the way Julie London's voice sounds on the panels. The Liberty Label Recordings sounded pretty good. If you are a Boomer or Gen X'er you should read the story of the Executives at Liberty. Pretty good story. Other Generations will not understand.

Thanks everyone for the great ideas. Please keep them coming.