To get the Quickies to stand up and bark, I put in some good caps, polystyrene to be exact, upgraded the power cord over the cheap lamp cord which was rotting away, and they do a great job on bass now. The misperception is that the bass is loose. They need Winged C tubes or JJ tubes to have tight bass, and the mods. I used mil spec caps, but the RT by REL (michael percy) should do the trick. They are .22/600volt types. The most important factor in bass is the matched damping factor from speaker to amp. The bass is very firm and tight on my Maggie 3.6 now. Jallen