I bought a pair of customsupertweeters on ebay three years ago I was using them on my Walsh 2s at some point I blew one of them out . I upgraded my 2s to 2000 and was not using them . I found a replacement driver and repaired the blown one . I just reintroduced them into my system . they have a crossover and gain selector switches 12hz 16hz & 20hzs - they are 93db with a -3 & -6 DB setting . I have them set @ 20hz & -6 and reversed the phase this sounds the best to me . I would like to try some Townshend supper tweeters they are small and think the will fit under the hats .
If you are in NYC and want to here my system PM me