Some may recall the 2008 prototype "Monster" woofer that inspired features later found in several other drivers we make today. It's been shelved for some time... but a second revision of the prototype has been started on and we'll have some testing coming up. * Compounded smooth machining on the top plate with the NS v.2 style cross drilling. I am testing more with a top shorting ring on this design -- that is not necessarily something that will see production. * Again you see numerous smooth