Just as two heads are better than one so it goes with subs.
http://rs920.pbsrc.com/albums/ad46/Kingshead/Mobile%20Uploads/20151116_191359.jpg?w=480&h=480&am...
Martin
http://rs920.pbsrc.com/albums/ad46/Kingshead/Mobile%20Uploads/20151116_191359.jpg?w=480&h=480&am...
Martin