I was a nonbeliever until I bought my SVT-II to replace a Kustom Groove Bass 1200HD that I kind of hated the tone of. Bought a Bass VT to try, it was good, but not good enough. Worked great as an overdrive option on the SVT-II though. 
Anyways, sold it, regretted it, bought an SVT-CL, '67 B15-N, and I'm still lusting after the new PortaFlex line. I like the 15's but not the 10's not due to their size but due to matter of minor tonal, cosmetic, and spatial (inside storage) differences in the cabs. The 10's were darker with a steeper top end roll off with the tweeter defeated. It added click but not much else. Plus I'd love to sit my B15, SVT, or Sound City 120 on top of that stack and go to town.
Anyways, sold it, regretted it, bought an SVT-CL, '67 B15-N, and I'm still lusting after the new PortaFlex line. I like the 15's but not the 10's not due to their size but due to matter of minor tonal, cosmetic, and spatial (inside storage) differences in the cabs. The 10's were darker with a steeper top end roll off with the tweeter defeated. It added click but not much else. Plus I'd love to sit my B15, SVT, or Sound City 120 on top of that stack and go to town.


