I'd like some outdoor speakers for the backyard/pool area, but have been generally disappointed at the models I've come across: weak bass, poor sound, lousy efficiency, modest power handling, etc. Has anyone tried DIY weatherproof speakers? It doesn't rain often here, so I figured that marine plywood construction --with appropriate waterproof finishing --would hold up. I can mount them under an overhang to protect from direct sun and rain. What about dust, heat (110deg), cold (near freezing), etc? I'd like something at least 88 dB/1w with usable bass extension down to 40Hz or so. I can live with up to, say, 40 liters but of course the smaller the better. Prefer not to spend more than $300-400 in parts. If I have to replace them every five years or so, that's OK too. I would run these off of "zone 2" of the pre-pro... and I have a couple of power amps lying around: Apt/Holman 1 (120wpc) or Sumo Andromeda (250 wpc). Thoughts?