I know this thread is REALLY old. But this cab is amazing. I have been using it for about 5 years now. I am actually looking to purchase another one. The cab pushes a lot of air. A lot more than Ampeg cabs. John April has been blown away by it. If your friend is still looking to seel his cab have him contact me on here.
Bassist of Sakara, rock band signed to Pavement Entertainment. Debut album being produced by Johnny April (bassist of Staind). www.facebook.com/sakaramusic
Jazz Bass Club #1216
So yeah, I have a few months using it with a Marshall VBA 400w head. Their sound is awesome. Along with a Ampeg 8x10, the Kustom cab is much better.
Are difficult to see, because few were sold. If I find another kustom I'll buy another. Jojojo.