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Bill Kelliher of Mastodon's Signature Amp





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The Friedman Butterslax is the signature tube amplifier head of Mastodon guitarist, Bill Kelliher. The Butterslax unleashes a wide range of savage yet extremely articulate distorted tones from its three selectable channels. Even the "clean" channel is better suited to rock-style crunch than crystal-clean timbres. And you'll find just enough features, such as Friedman's transparent effects loop, a variable line-out, and an included 2-button footswitch, to attain full sonic control of your tone. Take the Butterslax for a test drive, but hold on tight.





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Friedman Butterslax Bill Kelliher Signature Amplifier Head at a Glance:


A straightforward, fire-breathing rock amp


Unbelievably clear distorted tones


Friedman's famous effects loop and other additions


A straightforward, fire-breathing rock amp





At first glance, the 100-watt Friedman Butterslax Bill Kelliher signature amplifier head may look like a well-behaved classic rock amp. While those iconic tones are on tap, plugging into the Butterslax immediately throws you into a world of high-gain rock tones that are to die for. Dialing in the amp's voice couldn't be easier with its simple-to-understand control layout. Two independent tone stacks control the "clean" channel and the two overdrive channels respectively.





Unbelievably clear distorted tones





Bill Kelliher demands a high level of articulation when he's pummeling stages around the world with his band Mastodon. Therefore, from the cleanest tones to diming the gain on the third channel, you won't believe how clear and articulate the sound remains. The clean channel is engineered to offer a good amount of breakup, while being very touch sensitive for cleaner passages. The second channel is based on Friedman's popular BE gain circuit. And the third channel, as Kelliher puts it, "is the disintegration channel."





Friedman's famous effects loop and other additions





One thing that keeps Friedman amps at the top of Sweetwater guitarists' list is their powerful and transparent effects loops. That effects loop is on full display around back of the Butterslax. You'll also find an input for the included 2-button footswitch, a 3-position impedance selector switch for matching the amplifier's output to your favorite speaker cabinet, and a line output with its own volume control. The Butterslax boasts all the features a hard-rock guitarist demands with nothing to get in the way.





Friedman Butterslax Bill Kelliher Signature Amplifier Head Features:


Signature amp head of Mastodon guitarist Bill Kelliher


3 channels deliver all the gain you could desire


Vintage styling


Friedman effects loop is very transparent sounding


100 watts of all-tube power


3-position impedance switch matches to any guitar cabinet


2-button footswitch included


The Butterslax is designed for the sonic devastation of Mastodon.