I had a pair of 602S3 in a bedroom set-up and my use was essentially the same as yours (AE and occasional TV/Movies). I used a Rega Mira integrated to drive the 602s with very good results, certainly no congested mids. Still have the Mira and use it with Neat Critiques, again excellent results.
You should be able to find a Mira well under your $500 budget.
You should be able to find a Mira well under your $500 budget.