I was a Radio Shack salesperson... a long time ago... in a mall far, far away...
Anyways.... the Optimus Speakers were the line that was considered "premium" at the time. They were "soundy" and a bargain for the amount of punch...... However...
They also had issues where something called "real imaging" is concerned. Apparently it was a measure of a speaker's ability to reproduce sound accurately in/at a given volume of room.
I'm not sure if this would matter to someone just wanting to hear "stuff" but for the particular ear... these speakers would be granted a pass.
Now a good cabinet... Is worth its weight in gold, if thinking about purchasing and replacing the drivers... for they are out there!
Its pretty hard to find "real wood", apparently..... ?
Hope this helps!