My final thoughts about the Thunderbox.
It is NOT a LOUD cab!!!. Ordinary 1x12 cabinet cuts better in loud band situation.
Thunderbox is great for recording (via inner neodymium mic capsules) and small club gigs where you don’t want to kill listeners with the directional speaker cabinets.
It’s great for big stages if goes through PA and if it stands NEAR player where one can hear it clearly. Because of that you need high efficiency speakers not less than 100db, like EVm-12L, Eminence Wizard, Jensen NEO Tornado or Celestion Century.

here is a video of the cab with Jensen Tornado speaker and OTS