So I've been looking around for what to use in my mid tops for a while now, and keeping it relatively low budget, I am looking more and more at the Delta 12a which are around $85 each(~£55). I have been playing with WinISD some today, and got all the driver TS specs input and wanted to double check my results.
It says for a single speaker, the chamber should be 100.4 L^3 tuned to 51.52hz. Vents would be 10.2cm diameter round and 10.6 cm long.
Does that sound right?