Thought I'd post an update on this thread. Following the advise from Danny and a few others, I built a pair of X-LS speaker to use in my outdoor gazebo in the early Spring (March). I waited a full season to post back how they performed, so I could let others know how they held up in the outdoor environment.
First a bit about the speakers. The speakers are located up under the roof of the gazebo where they are well protected from direct moisture. Since they will be exposed to ambient humidity (I'm in NJ) I built the cabinets sealed (non-ported) to keep the internals dry. I painted the MDF cabinets with several layers of hammered finish (slightly textured) paint that dries to an indestructible finish that holds up well to the elements.
The X-LS cabinets have internal bracing, which combined with heavy duty floor tiles and thick foam, are really solid. I found cutting the tile to fit around the bracing to be tedious, next time I'll save time and use No-Rez for damping. Before I took the speakers outside, unplugged the A/V-1s in the shop and played the X-LS to break them in. I'm not sure if it was the extra damping I added to the X-LS cabinets, or the larger woofer, but I thought these sounded better than my A/V-1s.
I ran some conduit under the deck and inside the gazebo, then since the distance was rather long, pulled some large (10AWG) Belden cable.
I absolutely love the sound from these speakers. Inside the gazebo, even when playing at low levels, sound amazing -- light years above the outdoor speakers I listened to previously, that cost several times more than the X-LS. They also do a nice job of projecting sound outside the gazebo on the deck and a nearby patio.
They were outside from mid-March to the day before Hurricane Sandy hit us. My plan all along was to bring them in for the winter, and it seemed like a good idea to not take any risks with this hurricane. In terms of how they held up after a year I can say they look perfect. No signs of any adverse effects from being outside.
Overall, I have to say I am really pleased with these.
BTW, I have them paired with an amp fed from an Apple Express connected via toslink to a DAC. It sounds great and the convenience is ideal. I can sit in the gazebo and use my iPad/iPhone to either stream pandora or use Apple remote to control a mac mini inside the house that has all my albums. It's very handy and works flawlessly.




I don't have a picture of the speakers in the gazebo, guess I've been too busy enjoying them -- they're mounted to the header supporting the rafters and are angled slightly down to the listening area.
