Special 4th of July Weekend Sale ($250 + Shipping)!!!! FS Only: SWR (Baby) Blue Head. Original Version. I have been very torn about selling this, but I've finally decided to let it go. The head is in good/used condition for its age and is fully functional. However, the front cover is NOT included (I bought it used and the seller did not have it) and the cap on the Aural Enhancer knob is missing. (Also like that when I bought it). The knob is there, just no front cap. I will post photos tonight. Here's the description from SWR's Vintage Products page: The Electric Blue was the head-only version of the Baby Blue Studio Reference Bass System. It came housed in it's own mini road case with a removable, protective lid and handle. Due to numerous requests, this amplifier was reintroduced in 1998 with the same specifications and a simplified protective case as the "Baby Blue Head". Production Period: 1990 to 1993 Final Retail Price: Unavailable Price is $300 + shipping in the CONUS only.