old school , very heavy.. yep.. so are the cabs.. I'v been running this amp for a year now with a pair of 10/15h 4 ohm cabs.. its well built, and sounds simply stunning, huge amounts of tonal variation available, HUGE amounts of power, uttery reliable (and this runs for prob 15/20 hours a week plus gigs..) I was dubious about swapping from my 1989 t/e rig.. but i neednt have been.. forget the tiny class d amps, and small enclosures.. if your a bass player and proud, if your tone matters.. deal with lugging this around.. I cannot praise the thing hihly enough.. only issue i have is that the tolex covering is a bit easy to mark.. bring back the green carpet..
personally I'd forget the 1x18, depending on your style.. I found a 1x15 plus 4x10 perfectly fine.. but honestly the 10/15's together are incredible.. go test drive oneif your not sure.. but you'll want it..
Stevie.