You own a store, you sell 2 brands, which?

Old school - Pioneer

Modern - Raven Audio

Fer fun:

Joseph Audio

Devore Fidelity

Two brands that, to my ears, do some things, especially timbre and tone, "so right" and yet do it by sounding so different.

Dahlquist and NAD.....  I think these would be reasonably affordable to any schmo.  And great sound for the buck.

Excellent thread!!!!!!! I’ve started similar by asking what amp sounds good with my current speakers, but this thread should answer everybody’s.
KEF
Hegel.

For me, for fun:

Snell and Tandberg

Excellent styling and performance, and I did hear them both together, but I am very curious about Snell with Luxman to be honest but I never heard that combination.  With so many tube amps in their history so I think I’d absolutely adore trying out vintage 35W/Ch tube amps as well as the big SS beasts of today.