Wilson Alexia 2 lacking some bass

Well, for one, all Wilson speakers are well known for having some of the best bass and dynamics in the business. So, right off the bat, we can eliminate the speakers for possibly being the issue. I have Revel Salon 2 speakers, which have the same kind of great bass that the Wilson speakers have, and wherever I position them, the bass is still there, so I don’t believe that speaker placement is the real issue here either. I believe that your lack of bass issue most likely stems from either your amplification or your cabling. All you can do now is experimentation with different cables and amps until you get the kind of bass that the speakers are capable of. Happy listening.

@greenspyder718 how do you drive mono-amps, what is your preamp? also, what is sound level you think bass is lacking? 

I’m wondering if the amps may not be the ideal match or if further adjustments to the speaker placement could help resolve this.

You could keep changing amps and placement until blue in the face or.....the simpler solution is to get a pair of subs....

Placement is key, but the best bass response might not be the ideal placement for the mids and highs. A sub, or 2 under 50Hz with their own volume control might be the ticket for that last octave to really kick in.

The minor lack of low end response?  Compared to what?  Using a test frequency track can help pinpoint the exact frequencies involved.  That should be determined before any solution can be attempted.