POWERBASS OE-675POWERBASS OE 675 6. 75" Full Range Replacement speakers for your 2 ohm factory system Some cars use low impedance speakers to get a little more punch out of the factory radio. If you try to replace these speakers with standard 4 ohm aftermarket speakers, you'll notice a significant loss of volume never a good thing. These specially designed PowerBass 2 ohm speakers solve that problem and make the most of your factory power. Install these OE 675 6 3 4"