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
Can someone explain to me which speakers are not electronic?  Are they things that make sound without the use of any electric input, wires, crossovers, magnets etc?

I've seen pictures of vintage horn like things which somehow physically attach to the source of vibration.
Can someone explain to me why speakers are not electronic?


@noske

Make Wikipedia your friend:

 [Electronics use] active devices to control electron flow by amplification and rectification, which distinguishes it from classical electrical engineering which uses passive effects such as resistance, capacitance and inductance to control current flow.


https://en.wikipedia.org/wiki/Electronics

So  unless you have powered speakers, they are not electronic. :)

@erik_squires Thankyou, however I think that’s just geography.

I’m not sure Wiki clarifies my pedantic point but only serves to deflect - it is talking about two types of electronics - active (powered?) and passive. Non-active speakers use passive electronics, by definition. I’m not convinced that makes them non-electronic.
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