This is a custom made speaker cabinet that is excellent for use when a Fender Super Reverb, Fender Concert or any other Fender combo amplifier is split into a separate head and bottom cabinet. This is the speaker cabinet only. It is wired with four brand-new 10-inch 16-ohm Vox Bulldog speakers. That makes it a perfect 4-ohm cabinet, especially for guitar. I always used it with a Silvertone Model 1484 amplifier head. It sounded wonderful with that head because the cabinet is very efficient sonically. Take a look at the picture with the Silvertone head. The dimensions of the cabinet are identical to a Fender Super Reverb without the amplifier chassis installed. The cabinet sounds great with any four ohm head, including a Fender Super Reverb. Of course, the cabinet would also sound great with several heads designed for a four ohm load, such as a Fender Bandmaster, Bassman, Dual Showman and many others.