The 22 Caliber is a versatile 22-watt guitar head that fits in the palm of your hand. Just plug it into any 8- or 16-ohm speaker, and you'll get a big, sweet musical sound.
Crank the 22 Caliber's volume, and it'll go into overdrive -- like a vintage amp with a single volume control. Flip on the Bright switch to add some bite and definition.
It's not just a guitar head; it's a shrunken head, with all good voodoo.
John at Boynton demos the 22 Caliber Power Amp which delivers big sound and tone in a pocket-sized package.

All things are as they were, except you are there (well…kind of). 1978, Apple Computer was two years old, cell phones… what are they? And EHX introduces a state-of-the-art 200 Watt Slave Amp. If you happened to make it into the Electro-Harmonix Hall of Science at 150 West 48th Street in NYC, you’d see several up on stage.
Over three decades have passed, and EHX is still re-defining amplification, now with the 22 Caliber and 44 Magnum Power Amps that can actually fit in the palm of your hand!
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Previous Flashback posts:
Stay tuned, more EHX Flashback posts coming soon!
The Tone King shows off the ultra-compact 44 Magnum Power Amp. The 44 Magnum delivers the sweet tone of the popular 22 Caliber Power Amp, but with a bigger bang!
Whatsthatdudeplay.com is a popular music website with a focus on effects pedals. They just created their first ever “test drive composition” featuring the Electro-Harmonix 22 Caliber Power Amp, Cathedral Stereo Reverb, Deluxe Memory Boy Analog Delay with Tap Tempo, V256 Vocoder and Ring Thing Sideband Modulator.
You can hear it here.
"The world's smallest genuine amplifier?" See what the guys at
musicradar.com had to say.
Click here for the full article

Electro-Harmonix is pleased to announce the new
22 Caliber Power Amp, a versatile 22-watt guitar head that fits in the palm of your hand. Just plug it into any 4-, 8- or 16-ohm speaker, and you'll get a big, sweet musical sound.
Below is a quick video introduction from EHX engineering. The feedback toward the end is just guitar into a Big Muff Pi with Tone Wicker into the 22 Caliber into a 1x12 speaker cabinet:
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