I saw budget and automatically thought something like Sony XS-GS1720S, but placing it around $300 or "higher if needed" makes it no longer "budget" gear imo. With a set amount in that range I'd seriously consider something worth the coin like some raw Seas, Scan, SB Acoustics, etc.. I'm sure you could find a set of nice mids for $200 & tweets for $100 that many car branded gear in that range won't touch.