I have to believe the best upgrade would be of the crossover to higher quality components. I've experienced that making a significant difference in performance. #2 would be a cabinet upgrade. Not because there is a problem with what tekton does because there isn't. But there is generally room for improvement on any mfg cabinet. But you also need to be careful there. The cabinet design and sound absorption configuration can actually degrade the sound if not done correctly. I've considered Erics offer to me to do a Be upgrade to my Ulfs and shied away from it because I like the sound of the soft domes. Sometimes you can go one bridge too far. But I have reworked a set of Lores with new cabinets I constructed and component upgrades. They sound very, very good. So I've actually taken this path.
TEKTON IMPACT MONITORS
I ove this speakers , on my set up they sound really very dynamic and easy to listen. Is there anyway to replace their tweeters to improve them? I do love the design of the impact.Thanks