Art of Noise: Making a contact Microphone.

Sourcing the  speaker from Jaycar electronics – they have outlets all over sydney.

 

This one will work

http://www.jaycar.com.au/productView.asp?ID=AS3002

or this one

http://www.jaycar.com.au/productView.asp?ID=AS3004

they also have the  xlr cables,  but remember you can use  another type , mini jack, or phono.

http://www.jaycar.com.au/productView.asp?ID=WQ7292