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

Thought experiment:

You run a store which sells used and new gear from any point in history.  The catch is you can have exactly 2 brands.  One of electronics one of speakers. 

Defunct brands are OK as are those current with long histories. 

What brands are they? 
SET brand amplifiers
and WBer speaker brand only 8 inchers.
Nothing else in my store. You want anything other than, Go look elsewhere......
Pretty easy decision here.  I'd be in on Sonos before they went public and Beats before selling to Apple for $3B.
Audio Note (because you would have a full range of source, amplification and speakers)

Western Electric (some of the very best speaker components and great amplifiers)