I owned both and found the 1.6's more dynamic and tighter bass, a very good speaker indeed. although the bass on the 2.7's was deeper, yet less accurate in my system(then). I really prefered the 2.7's overall for their warmer and smoother highs and less forward upper mid presentation. In my system which was by no means anywhere near a reference system,( Orig.Rega Planet, Audible Illusions 2C pre, Acoustat TNT 200 amp, Audioquest Midnights and emeralds..) To small a room..I did not get the best from either speaker.In fact my brother in law( A very good rock bass player) was very unimpressed with the 2.7's bass and commented that he couldn't tell if the bass was an upright or amplified bass).. With the right components and room set up however Im sure they would have been better for me. In fact, the day I traded them in for another speaker at my local dealers we set them up to audition and I was very suprised at how good they sounded and thought maybe I should have kept them. The bass was actually so much improved with better equipment. In hindsight, all they really needed was a lot better equipment and better placement If I had to choose between them again, Id go with the 2.7's for the reasons I mentioned at the beginning, and mate them with the proper equipment but that would go for either( or any other) also.--Cheers! Ken