Sbs PB1000 is 45 k
Svs sb2000 - 64 k
Svs Pb2000 - 73 k
:Svs pc2000 - 73
These are the prices told to me by KRC. I had a brief audition of Pb1000 and Sb2000 at Alliance Goregaon. I felt Pb1000 slightly better in Movies.
Please take a detailed audition.
Due to budget I am going for Pb1000.
Pb2000 has bigger 12" driver while pb1000 has 10" driver and also bigger cabinet and 0.5" bigger port. This results in better and deeper sound. Please refer
Best Ported Box Subwoofer | Powered Home Theater Subs
Regards Sanjay