I had the Premier 12 + 16LS combo for a few years. I really liked it. The 12s offer that classic warm caramel CJ sound from before the turn of the century. But yeah, they are a bit less articulated and slow on the bottom end than more modern CJ gear.
One way to address this is to have a competent CJ modder replace the 12s hardwired power cords with IEC power connectors. Then use them with the power cord of your choice. Alternatively you could have those spindly stock cords replaced with something else hardwired in place, but know what you want because (obviously) that approach means it is not easy to swap. (fwiw, Shunyata PCs work quite well with CJ amps.) I'm confident you will be pleasantly surprised - if not shocked - at just how much more punch and weight your Premier 12s can deliver.
Otherwise I agree with Chuck. The 8s are nice, but more of the same. The Premier 140 has more low end authority, but is tonally more neutral. The LPXXX series goes back in time with slightly more warmth, but likewise will have more punch and drive. The latter two amps also benefit from power cord upgrades and quite remarkably so. If you would consider solid state the Premier 350 is most excellent.
Tim
One way to address this is to have a competent CJ modder replace the 12s hardwired power cords with IEC power connectors. Then use them with the power cord of your choice. Alternatively you could have those spindly stock cords replaced with something else hardwired in place, but know what you want because (obviously) that approach means it is not easy to swap. (fwiw, Shunyata PCs work quite well with CJ amps.) I'm confident you will be pleasantly surprised - if not shocked - at just how much more punch and weight your Premier 12s can deliver.
Otherwise I agree with Chuck. The 8s are nice, but more of the same. The Premier 140 has more low end authority, but is tonally more neutral. The LPXXX series goes back in time with slightly more warmth, but likewise will have more punch and drive. The latter two amps also benefit from power cord upgrades and quite remarkably so. If you would consider solid state the Premier 350 is most excellent.
Tim