I have Logitech Z5500's... looks like they are using the same speaker in the satellites in your system. They are the weakest link in Logitech's set up, in my opinion. The sub I have is very boomy, but fairly clear for a big ported box. But take a couple of your speakers and upgrade them to a cheap 2-way bookshelf speaker, you'll get a good jump in clarity. I'm no audiophile and would never pay the prices those people pay, but even so the difference from their single driver to a speaker with a separate tweeter and woofer is night and day. Enjoy them, Logitch makes decent stuff, I've been using my Z5500's for probably pretty close to 10 years now.