I managed to acquire some 6.5" splits (see attached image) a number of years ago from Jaycar when they were discontinued and they have sat on the shelf until now. I'm looking to make a small bluetooth boombox out of them using a cheap Chinese amp and a battery pack. I know there are a million box design programs if you have the TS parameters of the speakers, but alas they don't come in the box, nor were they listed in the catalogue at the time (I found an old PDF copy). Bluetooth audio and not ultra high end speakers mean I'm not needing this to be absolutely perfectly designed, but I want to give it a good shot. Does anyone know a rough box size that is suitable to a 6.5" driver? Would I be better making it sealed (easier) or ported (designed for what frequency?????).