I have read everything that I could find here related to Axiom and Paradigm speakers, including forum posts gleaned via the search function (around 15-20 threads) and the Audioholic reviews/faceoff article. I have also read reviews/forums at other Web sites as well as searched the Outlaw Audio forum; I first learned about Axiom speakers from a tech at Outlaw.
I have not found a direct comparison between the 20s and M22s, I was hoping that someone had actually heard both speakers. (Thanks Peko!) The best way is to audition them, but I live in a small town with a very limited selection; a local furniture "superstore" carries Paradigm and BW, which surprised me when it came up after I plugged-in my zip code at the Paradigm Web site. Otherwise it is Circuit City time...
Since we were considering ordering wood veneer cabinets, returning unsatisfactory speakers would mean a loss of $150-$200 since custom charges are not refunded by Axiom. If I go ahead and order stock speakers just to audition them (assuming that Axiom would go for it...) or actually order the custom speakers I want to be reasonably sure that I will like them.
I am not an audiophile; the fact that I have been happy for over twenty years with my ancient ESS speakers should tell you something...
And when I auditioned the Paradigms yesterday I was impressed with both speakers, particularly how well the 20s held-up against the 40s (I used "At The Edge"/Mickey Hart, "Talking Timbuktu"/Ali Farka Toure and Ry Cooder and "Home"/Dixie Chicks for my audition CDs). At first I preferred the 20s, then I began to lean toward the 40s when I considered the size of my living room and speaker placement. But I would be happy with either speaker.
I had the salesperson turn-on a Paradigm subwoofer (sorry... I don't know the model but it retails for just under $400) and it actually detracted from the music because it "thumped"
until he turned it waaay down; it apparently hasn't been set-up properly. (Even my little Bose subwoofer connected to my iMac doesn't "thump" unless I turn the bass up all the way and crank the volume to unlistenable levels.) So I didn't have the best opportunity to hear what a subwoofer might add to the kind of music I used; so much for shopping for speakers in a furniture store!
Space is a bit tight for a subwoofer and we don't watch movies at home. Our living room is approximately 18 x 20 and has over-stuffed couches, carpeting (to be replaced by wood) but no drapes. We listen to a wide-range of music (Thank Gawd for the Internet!), but just a little classical and no rap/current pop stuff, mainly at low-to-moderate volume levels; the room layout requires that the speakers be 15' feet apart and we sit 9-11' away from the speakers.
In the end, listening is the only way to choose speakers because they are the most subjectively critical component in an audio system, at least to "average" folks. I'll have to leave the more arcane aspects of stereo component design to others... But I greatly appreciate both the online reviews and opinions of the folks who take the time to post on this and other forums.