Forget the light weight!!!!!!
I'm the tweekiest person I know.
THE!! best small bass rig is from the IP series at Bergantino I have the 12" these are the powered versions (there is one other one that has a 3 10")
you need a kiler pre amp and compressor.
pre amp ------ "Juggernaut 500"
compressor ---- Purple "Action"Comp 500
and a APA Revolver Rack to hold them in
both at atlasproaudio.com
the 12" amp and speaker is $2,000
and the pre and comp is $2,000
well you my think this is to much? think again there is no and i mean no bass amp rig that has REAL electronics. That are class A and discrete. no power amp (except Bergintino) that will have the dampening factor that will give real a response.
I work with top end studio gear and am spoiled with top sound quality. you can not get a better sound....period