stegeoc
100+ Head-Fier
Do you ever find wax buildup a problem with tiny tubes (<1mm) for customs? The pair I've been listening to recently has a roughly 0.5mm tube for the bass and recently I noticed the 2mm holes had a fair bit of wax in them. Those are easy to clean of course, but if it got in the 0.5mm I'm not sure what I'd do to get it out.18mm will already cut into highs a bit. 15-16mm would probably be a sweet spot.
For universals tuning would be a different story - even a short 1mm tube could work in certain conditions - that combined with tips would create a horn. You'd need completely different approach.
So far no problems, just a bit wary. I know you can get gauzes to git on the end, but when you have 3 or 4 tubes, that isn't really practical....