If you keep the panels vacuumed, they should last for years. As a last
resort, you can pull the panels and wash them. (See Martin Logan's Owner
Site).
So their limited lifespan is mainly related to dust accumulation? Or is it something related to repeated micro - arching (due to dust particles) identifiable by the typical low level buzz noises sometimes heard when putting your ear next to the charged panel when no music is playing? How often is it OK to vacuum them? (I\m doing it every 2 months or so; I wouldn't mind doing more often if this would prolong their life)
