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? 
erik_squires
JBL/JBL Synthesis & Yamaha....they both pretty much sell everything...and as far as Home Audio you have Home Audio and Home theater from budget to to uber high end....they both are audio Gods! Whether you like them or not...
I guess we're just listing the brands we like. I'll have a go but put it across different subcategories:

NA brands: Snell, Simaudio
UK brands: ATC, Epos (just for the ES14 -- one of the best speakers ever made)
Europe: Diapason, Unison Research
trick question, there is no combination of two brands that cover all bases for amp, pre-amp, turntable, speakers, etc. 
I could start with Cambridge Audio but for speakers, no brand would satisfy more than 30% of audiophiles. Our ears are different.