amp for Silverline minuet supreme plus?

I have a pair of the older Minuets coming in. It's been a while since I got to mess with these speakers, so I did some research and opinions ranged from their being the best thing since sliced bread to being on the bright side.

My experience with Onkyo gear is that it tends to sway toward the bright and thin side too. This may be your problem. I'd say that something that has the sound character of maybe an NAD amp would do the trick.

Had the Silverline Minuet Supremes and now have the pluses. Bright is probably the last term I would use.
Have had Quad, Harbeth, Von Schweikirt, Chartwell and Spendor monitors over the years. I would rate them up there with the Harbeths and slightly better than Von Schweikirts.
Have ued Mesa, Mac, Wyred4sound, Bel Canto and PS audio amps with the Silverlines.
Currently using a heavily modified PS Audio C100.
Bright, I don't think so?

I am using now luxman class A and I put AZ satori jumpers changed the sound for good.

Silverlines are voiced with Pass amplifiers. Something like a used 30.5 should work superbly with those speakers.

I have Silverline Preludes and use a Jolida 502p with great results...this is the 712th time I've had the opportunity to mention this.