Amp for Vandersteen 3Asig.

Pass Aleph series. These are the solid state amps for those who love tubes. They have much better bass and treble extension than tube amps yet they have the lack of grain, the smoothness, the airiness and the soundstage that you get from tube amps. They are also extremely neutral while revealing loads of detail. Sweet transparent midrange, but without the midrange tube bloom. There is nothing tizzy in the high frequencies and there is no electronic signature from these amps. As far as solid state amps go or any amp for that matter, they are hard to find fault with. The only thing is that they are not the most dynamic solid state amp there is. It would help if your preamp could supply some excellent dynamics.

My system:
Philips CD80 CD player
CAT SL-1 Ultimate
Pass Aleph 4 (100 watts/CH Single-ended Class A)
Vandersteen 3A Signature

This system can rattle floors and windows with the bass extension yet gives up little to the most refined systems out there. I love the CAT and don't think I would ever sell it, but it is not the perfect match here. I need a preamp with outrageous dynamics. I would like to try a First Sound Audio Presence Deluxe Mk II someday. But first, I'll change my CD player. I suspect that the CAT would be more dynamic, have more detail and even out-soundstage your LS-22, so beware that introduction of the Aleph might necessitate other changes in your system.