One of the BEST issues of this amp. 15" driver built in 1977 as determined by the Serial#. A very desirable year. Works great. Shows signs of wear (as expected given its age) but works and sounds great. A classic amp.
The Polytone Mini Brute III (15") is a legendary, compact solid-state combo amp known for its warm, clean, articulate jazz tone, featuring a 15-inch speaker, 110 watts RMS, simple EQ (Bass, Mid, Treble, Volume), and Bright/Med/Dark tone switches, beloved by jazz guitarists and bassists for its rich, punchy sound in a portable package. Its sealed cabinet and discrete preamp create a dry, controlled response, making notes "jump out" on stage.