Q. I have a pair of Polk Atrium 5 outdoor speakers that I'm going to be using on the large deck behind my house, where I have an outdoor kitchen and dining area where I frequently entertain.

I will be using the speakers to play music saved on my phone and to stream satellite radio from the app. It's a big area so I will need some power to drive them.

Is there an amplifier with Bluetooth that will work for me in the $300-$500 price range?

— T.B., Cranberry

A. You can certainly spend $300-$500, but there's something perfect for your application that is under $100.

It is what I would do with my own money, without even taking cost into account. It's the best solution and it happens to be the least expensive.

Fosi Audio makes small, affordable amplifiers with advanced technology that deli

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