It's not just a guitar head; it's a shrunken head, with all good voodoo.

The Electro-Harmonix 22 Caliber Power Amp is a versatile 22W guitar head that fits in the palm of your hand. Its excellent tone and extreme portability guarantees it a spot among your mainstays for performance, rehearsals, or recording. The 22 Caliber delivers everything that you would expect in a much larger amplifier. Though the input and gain structure was optimized for guitar it will work great with other instruments as well. Just plug it into any 4-, 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.

The volume knob controls the volume or loudness of the amplifier. As you turn the Volume knob clockwise, the 22 Caliber's output gets louder. At a certain point in the knob's travel, the output will start to overdrive. At this point, you are beginning to exceed 22 Watts on your loudest notes. Turning the volume knob further clockwise will produce a more overdriven sound from pure power amp saturation. When engaged, the power amp's bright switch adds a subtle high-end boost presence to your output signal. When in the normal position it is defeated yielding a signal that passes from input to output uncolored.

Plug the output of your guitar, effects pedals, or any other instrument into the input jack using a standard 1/4" instrument cable. Connect the 22 Caliber's output jack directly into almost any speaker cabinet. Use a speaker cable between the Electro-Harmonix 22 Caliber and speaker cabinet as you would with any power amplifier, though you can get away with using an instrument cable if absolutely necessary. Additionally the speaker cabinet must have a power rating equal to or greater than the 22 Caliber's output power capability. A speaker cabinet with a 30W rating is recommended. Electro-Harmonix has always been a supporter of the portable musician, particularly when it comes to amplification. The 22 Caliber power amp surely proves that great things come in small packages.

Electro-Harmonix 22 Caliber Power Amp Features:

• 22-watt power amp that fits in the palm of your hand
• Handles 4, 8, and 16 Ohm speaker loads automatically
• Bright switch adds presence and definition
• Volume knob offers smooth and surprisingly loud variable sound

Electro-Harmonix 22 Caliber Power Amp Includes:

• 18 VDC / 1.66A power adapter

The 22 Caliber delivers all the tone without the hassle of lugging heavy gear. Order yours today!

Electro-Harmonix 22 Caliber Power Amp Specifications:

• Input jack impedance: 2 Ohms
• Output jack impedance: 4 to 16 Ohms
• Impedance of the speaker cabinet must be rated between 4 and 16 Ohms.
• 8 Ohms is the ideal load for the amp
• 18VDC/1.5A power jack
• Warning: never connect the output of the 22 Caliber to the input of another amplifier, an effects pedal, mixer, computer, computer interface or any other similar device.

Electro-Harmonix 22 Caliber Power Amp

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it's all true

Posted by ole2112 from Indiana on Jan 26, 2010

Experience w/product: I own it

Reviewer's Background: 35 years of rock

Reviewer's Play Style: classic rock

Just got this little guy yesterday. All I can say is, the rumors are true! I play through a Johnson 4x12 slant cab w/vintage 30's. I am totally blown away! The claim is that you can power anything from 4 to 16 ohms, but don't try a 4 ohm cab, cuz you'll clip. Use 8 ohm only and prepare to be impressed!

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How cool is a Pocket Amp?

Posted by Digiboy0101 from CALIF on Dec 11, 2009

Experience w/product: I own it

Reviewer's Background: Hobbyist, Music Lover

Reviewer's Play Style: Rock, classic and metal;

Rockin' cool! I was expecting only so much, as I am a self professed Electro Harmonix junkie--can't get enough. Sold my 60W head (Hartke) and told myself I could give it a try! Never mind the fact it is the size of a fat deck of cards, it powers any cabinet! Used it with Amplitube 2, Fender and Metal, as well as with pedals from Electro Harmonix, and the more I played, the more I liked it. Won't replace my tube amp, but my goodness, will easily be my on the fly rig! Set it next to you, and between your guitar volume, and the knob on the 22, you got versatility galore! Check it out!

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KILLA BOX!!!

Posted by BONES AXEWERX from Miami, FLA on Oct 26, 2009

Experience w/product: I have used it

Reviewer's Background: Active musician and guitar tech

Reviewer's Play Style: Jazzysurfabilly blues and brutal metal

A guitar tech buddy of mine was screaming about this box so when I finally got to hear it, I realized what he was saying to be true. We connected it to a Marshall 4x12 with a Gibson SG and at low volume settings, it was sweet crystal chimes especially with the bright switch engaged. Crank the volume knob on it and watch out! My ears were fed gritty nasty tones a la Malcolm Young that have to be heard to be believed! Sweet Nectar!!! Bulletproof construction as can be expected from EHarmonix. Highly recommended as a practice amp yet can be used for small clubs without a problem. It screams in a 1x12 setting but with a 4x12 you can hear the tonal depth that hard rockers and bluesmen crave. Blast your cabinet with the 22 Caliber!! You won't be sorry!!!

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Great Little Amp!!!

Posted by Dude from Ohio from Ohio on Sep 23, 2009

Experience w/product: I own it

Reviewer's Background: Hobbyist

Reviewer's Play Style: All

I only gave it a 4 for features because it does not have an on/off switch. I bought this to use as an practice amp through my valve junior cabinet. I run an RP1000 multi effects pedal though it and it sounds very good and very loud. Amazing for such a little box. It also takes my 90's rat pedal very well too. Great product!!

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Electro-Harmonix 22 Caliber Power Amp

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