Very interesting topic, johnk. I started thinking about the title before I read the responses. My first thought was how difficult it would be to put all equipment (turntable, CD player, DAC, preamp, amp, etc.) into a cabinet for protection against wind, moisture, dust, heat, cold and more. I then opened the responses and read each one. NO ONE mentioned anything about equipment needing protection from anything. The gist of the thread is how the listener felt when listening outside and the experience gained from listening outside. Everyone had a simple way to have music outside. Funny, sad and embarrassing how I thought first about the equipment and secondly about the music.
The magic of outdoor listening
I tend to keep one system I can pull outdoors when I am in the mood the freedom from room colorations is an amazing thing. Being outside listening to a great system playing wonderful music is magic. I have a bike race by my home and if the weather is nice many times I'm out jamming I have had large groups of cyclists stop 50 yards from my home to enjoy my music. Last year I has using a giant pair of RCA front horns with a full range in it this year going with a community leviathan system with radial. I pull out a tube amp when I jam outside. When I retire I plan on putting out a permanent outdoor horn system so it is ready to go when I am. Sitting still seated centered in a room all alone is enjoyable at times but also kind of tragic I am happy I have options. Maybe consider the outdoors as one of your listening spaces.