This is a Fender bass 300 BXR amp head built in the USA.
It features two inputs, low and high enchance buttons, volume, treble, middle, mid frequency and bass knobs. Built in compression with on/off switch and a power amp in and out . Two parallel speaker outs on the back.
This amp sounds great!
check this for more info and manual:
http://support.fender.com/manuals/bass_amplifiers/BXR_300C_300R_manual.pdf