I would call or email Ty. He is very helpful and friendly.
With that said, I used to have Dynaudio 220's and found that they did everything good except powerful classical music pieces. They just didn't have the necessary umph to make it sound believable. I replaced them with the Linbrook Signature system speakers. These have four 8" woofers and the bass goes low and is clean/tight. I'm very happy with them and have had them for 3 years now, which says a lot because I go through gear like crazy sometimes. My listening space is roughly the same size as yours, maybe a little smaller. I really love bass, so I also use a JL Audio Fathom F110 to play that last octave of bass that the Tyler's don't pick up. If you are not a bass fiend, you would be fine without a sub. Also check out the Woodmeres. I haven't heard them but they get awesome reviews and they are massive. I think there is a review here on audiogon for the woodmere's if you do a search.
With that said, I used to have Dynaudio 220's and found that they did everything good except powerful classical music pieces. They just didn't have the necessary umph to make it sound believable. I replaced them with the Linbrook Signature system speakers. These have four 8" woofers and the bass goes low and is clean/tight. I'm very happy with them and have had them for 3 years now, which says a lot because I go through gear like crazy sometimes. My listening space is roughly the same size as yours, maybe a little smaller. I really love bass, so I also use a JL Audio Fathom F110 to play that last octave of bass that the Tyler's don't pick up. If you are not a bass fiend, you would be fine without a sub. Also check out the Woodmeres. I haven't heard them but they get awesome reviews and they are massive. I think there is a review here on audiogon for the woodmere's if you do a search.