Picture Australia, January, outdoor gig. I need to hire a DB for ten upcoming outdoor gigs. But here's the thing, January is the hottest month of the year and gigs will be at the hottest time of day (late afternoon). We sometimes get over 40C (105F). We will only have a basic marquee and no aircon. So here's the question; what sort of bass construction/material would be the most resilient, and have the least tuning issues in these kind of conditions? Solid, ply, etc. Would value any advice from the TB community.