[sdiy] Slightly OT: really loud but light weight speakers

[Joris]

John, Peter, Oren & Stephen: thanks for the suggestions!!

Finding a loud horn with a rolloff under 2kHz wasn't easy, but I
managed to find a horn driver with a freq. range of 500-18kHz:
http://www.etronics.com/product.asp?stk_code=pylpdb512

Any idea if this thing would be much quieter if we didn't attach a
horn to it? The amount of space in the bot is quite limited as well...

Joris