Onkyo A-50 vs Buckeye Purifi 1ET6525SA

If your wife likes the look of the Onkyo, I'd go with that.  Can't possibly be enough difference between the two to compensate for the lifetime of resentment she will harbor if you disregard her will.

here you go, not the same amp but I'm sure a good enough incite. 

Onkyo Is Back — And I Didn’t Expect This! 

I don’t like to get into listing brands, when many commenters throw out a lot of brands, it gets confusing. There are about 30 audiophile brands, all well reviewed and proven. I often recommend the British Audiophile’s youtube channel, once, a year he reviews 10 or so amps. I think if you narrow down your search, the specs, the budget, the house sound, you would end up with about 10 or less amps. 

https://www.youtube.com/watch?v=_WlXeypy9fk

I like smaller brands such as Creek and Belles, Simaudio (not as small). They are optimized for maximum clarify and detail developed by mad scientists. Enjoy your hunt!

IMHO cheapaudioman is an entertainer not a reliable reviewer.

I will check it out. I think I want something a little bit warm/vintage sounding since my speakers are pretty neutral . 

I agree that a warm amp would be a good match. It sounds like aesthetics is going to be important which I can very much understand. I am a sucker for the Moonriver (vintage), timeless (Luxman), sharp (Yamaha, Technics) looks. Onkyo does have some good looking gear too.