What are some numbers that are closely related to heavy music? Other than the number of the beast, it’s probably this sequence of numbers: 51 and 50. Taking its name from the signature of the legendary guitarist, an inventor who has inspired the 5XXX signature guitar amplifier delivers a very specific kind of guitar tone, dubbed as the “brown sound“. The amp has become a staple of metal sound. It’s on every album with crushing and distorted guitars, such as Machine Head*, Opeth*, Testament*, Trivium*, Gojira*, and so many others!

Powered by our 3rd generation tube engine, Kuassa recreates and tweaks all three major versions of the 5XXX amps to deliver the infamous brown sound that blasts like nothing else in your DAW, the Amplifikation VVV.