Introducing the Karma SIX12 Amp Combo - Hand wired with love!

Designed by a Grammy-nominated, award winning producer/engineer/mixer
The idea for this amp came after I played gigs in the wine country of Sonoma County, Ca., my new home. My ’65 Deluxe Reverb was just too loud for the kind of gigs and venues many of us play now. I needed a simple, light, lower powered amp that could do some nice pedal friendly cleans but also ramp up to some killer tube based drive.

The Karma SIX12 is a true Class A, parallel single-ended amp, available as either a head or combo. The control set is simple and straightforward - good for overall shaping - progressing logically from clean to driven.

For the cleanest tones, turn Negative Feedback (rear panel) ON, low cut switch DOWN, Volume 9-11 o’clock, Tone as needed to shape the highs, Mids and Saturate at minimum.
From there, dirty things up by any combination of Negative Feedback OFF, low cut switch UP, increased Volume, Mids, and Saturate.
Putting a second 6V6 power tube in parallel with the first (switched to 12) yields a slight boost in volume without affecting tone - perfect for later in the night when the band volume comes up.

6 or 12 watts of glorious 6V6 single-ended, Class A power
Massive Heyboer transformers and choke, custom made in the USA. Way overbuilt - the bottom end stays tight!
WGS American Vintage 12GC 12" speaker - custom matched to the SIX12
Highest quality parts, sourced in the USA where possible.
Heavy gauge, custom made, powder coated chassis
Combination turret board and point-to-point construction
Tube complement: 12AY7, 6V6GT (x2)
8 Ohm Speaker output
Check out our website - - for more photos, info, and sound examples.

ConditionBrand New (New)
Brand New items are sold by an authorized dealer or original builder and include all original packaging.Learn more
  • SIX12 Combo
  • 2024
Made In
  • United States

Reverb Protection

Simple Returns, Secure Transactions, Human Support

Learn more

Secure Checkout

Karma Guitar Amplifiers

Healdsburg, CA, United States
Joined Reverb:2017

Reverb Gives

Your purchases help youth music programs get the gear they need to make music.

Carbon-Offset Shipping

Your purchases also help protect forests, including trees traditionally used to make instruments.

Oops, looks like you forgot something. Please check the fields highlighted in red.