Will this vintage receiver play that funky music?

[topspeed]

So, is any of this stuff good enough to provide basic background music in our work room? Is it a higher receiver or are the speakers? Is the receiver really capable of 300W? Can I connect a modern CD player to it? If the receiver is bad, can I drive the speakers with a modern receiver?

Any help would be appreciated.

In order or your questions:
Plug it in and find out.
No clue. Why does it matter?
Probably not. There are only few manufacturers that actually publish real wattage.
Absolutely. It is sending an analog signal just like anything else.
Sure, as long as their impedence isn't too hairy. Based on your description, they sound like high efficiency designs so you should be fine.