TRADED Audiokinesis Hathor
Hello... the time has come to let go this amazing cab. I owned it for one year, give or take, but only used it at low volumes to test instruments.
It was originally built for the Kalium Strings booth at the 2016 NAMM by Duke Lejeune (Audiokinesis USA) and has been designed to go ultra-low (down flat to 23hz or so). http://www.audiokinesis.com - these cabs are all the rage on Talkbass... and for a reason!
It's more or less the same dimensions of the SWR Big Ben, maybe a bit taller, but
Some answers :
The second big experimental bass cab is in response to luthier Skip Fantry's "Quake" bass, manufactured and sold under his KnuckleHead brand. Skip routinely ventures where many fear to tread, and has gone public with basses tuned as low as G#00... which has a fundamental of about 13 Hz.
I think this type of instrument would be called a "sub-contra bass". It is not meant to be used as, or in place of, a normally-tuned bass guitar. It is a different class of instrument,