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Friedman Butterslax Bill Kelliher Signature Tube Amp Head Signed by Bill #51325

Availability: In stock



WORKING CONDITION: Excellent - This amp head is in excellent working condition and sounds ferocious! 

 Excellent - This specific model has an actual signature on the back from Bill Kelliher of the band Mastodon, protected with a nice plexiglass cover. Aside from a few very minor abrasions on the control panel, everything is clean, nicely well-kept, and ready for action. Overall, the physical condition is excellent. 


BRAND: Friedman 

MODEL: Butterslax 

FUNCTION: Guitar Amp Head 

PRODUCT DESCRIPTION: This listing is for a Friedman Butterslax Bill Kelliher Signature Series Tube Guitar Amp Head.

We are selling this amp on behalf of someone who is close to the band Mastodon and had a side project with one of the members called "Legend of the Segullmen". This is how he came to have this amp signed! 


  • Serial #3370816020
  • Finish/Color: Black 
  • Weight: 41.55 lbs 
  • Watts: 100
  • Ohms: 4, 8, 16
  • Tube Config: 4x TAD EL34B, 2x ARS 12AX7A, 2x ARS 12AX7
  • Effects: Thump, Presence, Bass, Middle, Treble, Gain, Clean, Boost


  • Clean/Boost Footswitch Pedal
  • Livewire 1/4" Speaker Cable 
  • TRS Footswitch Cable


UNPACKAGED DIMENSIONS: 27.5" x 12" x 8.75"

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