That is Awesome!

Power pack with crisp and clean sound!
I hope the speakers don't have foam surrounds.
That killed all my excitement after going through terrible pain rebelting the twin decks on my 11W.
I went only at 1/3rd of the volume to kill the rotten foam surrounds.
I am totally confused on putting surrounds for these APMs. How do I center it? Okay I made the surround but how will I center it?
No place to use any shims.
It will be all trial and error, moving the cone and checking if voice coil rubs or not before one glue the sides on the edges of the speaker frame.