What kind of Spector bass do I have?

I can't speak for anyone else, but I don't see any pictures or any information about your bass.

 

Looks to be a Spector Performer 4 in Flamed Slate Gray.

 

I agree with @garp

 

I’m not thinking that’s correct?

A 2004 Spector Performer 4 doesn’t have a painted neck back and the S/N is oriented differently.

Performer 4 DLX perhaps?

Spector Performer 4DLX 2004-2006 translucent matte black | Reverb

 

It's the Performer 4DLX. I played one for years.

It's a great sounding and playing bass, I wish I still had mine.

 

If so, then OP's chrome knobs are not the OEM black ones:

 

I’d agree as everything else looks DLX, especially the back of the neck and S/N cause the Performer 4 non-DLX in not painted (clear gloss over maple) and the S/N is oriented differently (horizontal vs vertical)

 

Wait. You bought it without knowing what you were buying???? How did you evem research to make sure you weren't getting ripped off?