Replacing the caps do wonders and a relatively cheap fix. Bypassing the APOC in the tweeter is another option. Series 3 did away with that. Are they on stands? The soundanchor dedicated stands really open up and cleanup the sound and bass. Also using good bi wire improves things. These are a few options. My Matrix 802 series 3 are amazing. The caps used are sonicaps for the mid/treble drivers and Dayton caps for the bass. They replaced .89 cent bennic caps that were there. Hope this info works for you.
