
I've upgraded my door speakers to the Hertz DSK 130. The midrange woofer dome is 5.5" diameter, which fits perfectly on the door panel speakers. I fixed the tweeters near the side windshield A/C vents.
The tone quality of the tweeter is excellent for piano or jazz music (the ride cymbal sounds crisp and sharp!), and the bass-midrange drivers resonate low frequencies pretty well.
Other items in the kit include screw gaskets for doors without speaker mounts, and optional speaker grilles - but the original Volvo grille fits perfectly.
Installation Photos:








