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
I need to ask a question. Since when, does Mcintosh have lightning fast dynamics, and a high damping factor ? None that I have heard, and I sold, and installed them, for years.
+1Those characteristics indeed do not apply to Mac's
Cheers George
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And you, George, why are you always bashing Mac?
Because what Mr D said is correct, and is a measurable fact. And he did say "his friend loves it".
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