OH NO!!! Kidding...I've upgraded everything around my Preludes and they've responded by sounding better and better, and they were great right out of the box!. I use an older REL Q150e sub with them and in my room they sound AMAZING. The most recent tweak was simply moving to the 4 ohm tap on my Jolida tube power amp, and that seems to have improved things a little more...made the amp happier it seems since a minor low level mechanical buzz lessened. I have my Preludes on butcher blocks to raise them up 3 or 4 inches and stuck Vibrapods under them instead of using the spikes. Not sure why that works, but it does. Note that the Preludes take some time to break in, so be patient and you'll be rewarded with some mojo. Note that Alan Yun told me to NOT biwire them as they're more coherent with single wiring...I tried both and I ended up agreeing with him. You can carefully pop off (flat screwdriver used carefully) the plastic rings that cover the woofers and tighten the wood screws once in a while...the tweeter has a rubber damping thing that I have not messed with, so that's been left alone.