As you know, I have the Reeves version of the OS 2X12 designed by Port City.
It's the tallest 2X12 I think I've ever seen and having the port below
acts in the same way a bass reflex cab adds to the depth of tone in the cab.
The construction quality of the cab makes it heavier than you might expect,
with 3/4" birch ply back as well as the internal speaker baffle.
All of this contributes to a very solid sound.
What you are not hearing in James' clip here is the jangle box side of
this cab. With the right choice of speakers, you can cover a lot of tonal ground through this cab.
Don't look at me in that tone of voice
Put music in your heart
and heart in your music