NOTE  This is for a Short form kit (Instructions and PCBs only) for Four Tweeter protection modules. These are shown in the first picture - other pictures of completed boards are for reference only.

The Tweeter protector is designed to monitor the signal (voltage) being fed to a speaker, and disconnect the speaker when that signal exceeds a pre-set level. This unit is completely signal powered, and presents an additional load over 109Ω, so does not cause any issues when used with a speaker system of 16Ω or less.

This module is designed as an an 'after market add on' to an existing speaker system (noting that fitting this module will constitute a modification, so may invalidate any manufacturers guarantee on the speaker). Once the circuit has tripped, the speaker will remain disconnected, until it is reset by a significant drop in signal.

Further information may be found at:

http://www.atps.net/Projects/Tweeter_protect.html
or
http://www.atps.net/Projects/Tweeter_protect_1.pdf

May be picked up from Hornsby, north of Sydney

Unfortunately it is starting to cost too much re-sending items due to non-delivery by tracked means, so I am going have to exclude some Countries from my shipping list.

If you do live in any country excluded in this listing, and wish to buy these PCBes shipping will cost $32 - please contact me