The system fires up but needs a good cleaning, the foams are in good condition.
This is the big brother of the System Seven that I had a few years back.
It consist of a pair of Minimus 11 speakers and the STA-111 Receiver rated at 30 watts per channel.
Pretty cool little system from Radio Shack in the final years of making some hip products.
The STA-111 receiver subsequently got a new volume pot, a good De-Oxit could not get the balance worked out.