Mark:
The model # is VSB-120. The dimensions are 11.8"x8.3"x3.2". It connects to your existing car stereo and has both line level (RCA) inputs as well as speaker level inputs, so you can choose which to use. It is a dual voice coil (both channels). It is still available and sells for $230.50. I bought it from Continental Imports, which is Stevebfl's (from the tech forum) company. See the link below.
Blaupunkt VSB-120 