Openning a hi fi shop

First off most established brands would not touch you unless they do not have a dealer in your area.  You cannot just buy one or two pieces of their product line you have to make an initial investment.  You should have systems at different price points

You cannot copy John Rutan as he has protected Vandersteen territory which you won't be able to get.

There are so many companies out their today that would have an interest but nothing is free!

Happy Dealershipping!. 

Did you do a business plan? What is your projected ROI in year 1,2,3,4,5?

I would need to come from a more affluent family before ever considering starting a hi-fi shop.

The land of opportunity -as long as you are wealthy and connected...

Come up with your own products. Sell to your local area and on line. Start searching for products you can put your own trademark on. Offer customers a service level they can’t get elsewhere, can’t get online. Offer upgrade materials. But don’t break peoples’ ass to buy it; make it attractive price-wise. I can think of many products and services.