Amp and Preamp recommendations for Yamaha NS5000


Currently have SOTM 200 ultra -> denafrips terminator +dsp board -> Audio gd he9 pre amp -> dual bryston 4bsst -> NS5000.
I am loving the sound... just sounds incredible. But wonder about amp and pre amp upgrades down the road. Any thoughts on what might work well? These speakers are 87 db efficient.
So far thinking all pass labs amps + pre.

Ok with buying used. Would like to keep things under $20k if I can. Thanks.
smodtactical
LOL. Ya I think if I hook them up I'll turn my volume dial so incredibly slow while sweating bullets lol

To reiterate: if I had up to 20K to play with, though ideally a good deal less, I'd be looking at separates from

Luxman

Aesthetix

Ayre

I'd love to grab an m900u. Pricing on it is tough though.
Used X150.8 or new Coda no8 are probably good cheaper options.

I really enjoy the Ref 5 SE + X350.8 with the ns5000. They move me to tears everytime I listen to them. But lately I am enjoying a warmer more organic type of sound (that I heard with the bottlehead crack OTL amp with black silk hd650). So trying to move more in that direction. I have the bottlehead moreplay preamp coming in but still looking around for a warm tube pre + power amp or integrated to try on the ns5k.