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Friedman JJ Junior Jerry Cantrell Signature 2-channel 20-watt Tube Head Demo

2-channel, 20-watt Guitar Tube Amplifier Head with Effects Loop, Presence Control, Custom Transformers, Line Out, and JBE Switch

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Get That Alice in Chains Sound!

The Friedman Amplification JJ Junior Jerry Cantrell Signature amp head delivers the deep, dark and brooding tone of the acclaimed JJ-100 in a gig- and practice-friendly 20-watt package. Designed for Alice in Chains guitarist Jerry Cantrell's guitar needs, the JJ Junior offers the heavy tones that Jerry is known for. The JJ Junior has all of the punch, sustain, and tone you'd expect from a modded British amp without the harsh top end. The touch sensitivity and response of this amp will make it one of your favorite heads. Powered by dual EL84 power tubes, Friedman Amplification's extremely versatile JJ Junior tube amp head is a must-have when you need killer rock and metal tones at reasonable volumes.

Massive rock tones a la Jerry

From deep-tuned growls to hot-rodded rock tones, the JJ Junior 20-watt amp delivers a wide range of sounds. Loaded with EL84 power tubes — a favorite of Sweetwater's rock players — and 12AX7 preamp tubes, this amp delivers smooth cleans, crunchy rhythm, and blazing lead tones that will handle any gig. A global presence control, a bright switch on the clean channel, and a JBE switch for an extra dose of gain let you further tweak your tone to perfection. The response, dynamics, and sensitivity of this amp is amazing. When you're rocking out and need to clean up your tone just roll back your guitar's volume, or use a lighter touch on the strings, and keep playing. No channel switching or amp knob twisting needed. If you're looking for massive rock and metal tones, then you need the Friedman Amplification JJ Junior Jerry Cantrell Signature guitar amp head.

Handbuilt for exceptional tone

All Friedman Amplification products are handbuilt to exacting specs to give you amazing tones every time you play. Premium components and attention to detail ensure that your JJ Junior Jerry Cantrell Signature amp head will deliver the sound you want and need onstage or in the studio. It doesn't matter what type of music you're into; a premium, handbuilt Friedman amp has the tonal palette you need to create the sound you're after.

Dave Friedman: amp guru to the pros

For over 25 years, Dave Friedman has been tweaking, building, and repairing amps for some of the biggest names in music. His legendary reputation among touring musicians has gained him a loyal clientele including the likes of Eddie Van Halen, Steve Stevens, Jerry Cantrell, and more. Dave has created his own production amp line utilizing his sought-after skills and talents. Now you can get the same legendary amp tones as the pros with a Friedman Amplifications amplifier from Sweetwater.

Friedman Amplification JJ Junior Jerry Cantrell Signature Guitar Amplifier Head Features:

  • Versatile 20-watt, 2-channel Jerry Cantrell Signature all-tube amplifier
  • An ideal amp for blues, rock, and metal
  • JBE switch adds gain, compression, and saturation
  • Handbuilt amplifier with premium components including custom transformers and capacitors
  • Bright switch and presence control let you tweak your tone to perfection
  • Dual speaker outputs let you use up to 2 speaker cabs
  • Line-out with level control for feeding a mixer or recorder
  • Ultra-transparent effects loop for your favorite pedals

What is Demo Gear?

At Sweetwater, we're so picky that what we call a "demo" is actually better than what most music retailers sell as "new" gear! Our gear hasn't endured hundreds of people a week plunking away at all the keyboards, fumbling through Stairway to Heaven on every guitar or playing with every fader and knob on a mixer or control surface.

What demo means to us is that we've had it out of the box, or maybe it was in a customer's hands for a few days and isn't "factory fresh" as a result. Every demo item we sell has Sweetwater's 2-year Total Confidence Coverage™ warranty, and has been tested and verified up to "new" specs by our factory-authorized technicians to make sure it's in perfect working order before we ship it to you.

When you buy a Demo item at Sweetwater, you get:
  • 2-year Total Confidence Coverage Warranty™!
  • Products inspected and tested by our factory-authorized techs, guaranteed to function like new (or better)!
  • FREE shipping on most items
  • Equipment that will MEET or EXCEED your expectations!

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Tech Specs

  • Type: Tube
  • Number of Channels: 2
  • Total Power: 20W
  • Preamp Tubes: 3 x 12AX7
  • Power Tubes: 2 x EL84
  • EQ: 3-band EQ, Bright Switch
  • Inputs: 1 x 1/4" (instrument)
  • Outputs: 2 x 1/4" (8/16 ohm), 1 x XLR (cab simulated out)
  • Effects Loop: Series FX Loop
  • Footswitch I/O: 1 x 1/4" (channel)
  • Footswitch Included: Yes, 1-button footswitch
  • Bias Type: Cathode Biased
  • Construction Material: Baltic Birch Head Cab with Black Tolex
  • Power Source: Standard IEC AC cable
  • Height: 8.25"
  • Width: 18"
  • Depth: 8.5"
  • Weight: 22 lbs.
  • Manufacturer Part Number: JJ-JUNIOR HEAD

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Customer Reviews

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Rated 5/5

20 Watts of Pure Bliss

Stop waisting your time reading reviews and just buy one. The moment I first plugged everything in and powered up, time kind of slowed down as I was sucked into the wonderful, articulate output of the JJ Jr. The clean channel has 3 modes of brightness, which should accommodate any guitar or any style of playing. The gain channel has 2 modes, and each one will put a smile on your face. Wanna play clean, or slightly gritty blues? Wanna play chugga chugga grind? Metal? Need to brighten up a muddy humbucker? Need to darken an overly bright single coil? Or, maybe you just want to hear the guitar as it is with minimal coloration? No problem! The JJ Jr. has you covered.

Build quality is excellent and the attention to detail is impressive. I also purchased the matching single 12" cabinet, loaded with a Celestion Creamback. Both looks as good as they sound.

All in all, this is the nicest amplifier and speaker cabinet I have ever owned. I wouldn't change a thing about either. Other discerning musicians may disagree, but do yourself a favor (if you have access) and try the JJ Jr. out for yourself. I had to order mine blindly based off lots of internet rabbit hole. Happy to say amp (and cab) exceeded my expectations.
Music background: Practice, or you’ll end up like me.
Rated 5/5

The Amp IS a Musical Instrument

The most dynamic , touch sensitive "modded" amp I've ever played. It just sounds MUSICAL and ALIVE.
It retains great tone at every volume. I simply love it.

The JBE mode alone is worth the price of admission.

Even the cat approves…

Many thanks to Chris Leonard!
Rated 5/5

Very articulate amplifier

Had my JJ Jr for a few weeks now. One of the best sounding amplifiers I've had since getting rid of my Mesa Dual Rec.

It's nice and light. Easy to pack in and out. Great FX loop.
Can do anything from classic rock to metal. Pairs nice with a Tumnes in the front end.
Music background: At home jams and live performances.
Rated 5/5

You get what you pay for

Just a wanna be musician. But I know a killer sound when I hear it. Looked at a lot of amps before pulling the trigger
Watched a video on YouTube by a certain guy and I knew this was the one. Or any Friedman
Music background: Intermediate
Rated 5/5

JJ Jr ROCKS!

Best sounding 20 watt head I've ever owned. It's BE channel alone is worth the price of admission. Add to that a JBE switch and BAM! High gain heaven! Even with the gain knob cranked to 11 (Yes it goes to 11!) the amp still retains it's clarity and definition. The amp is super tight and doesn't flub out even if you crank up the bass to 11. The clean channel can go from a Vox style clean to a bluesy growl when you turn the volume up. I also own a Friedman Dirty Shirley Mini and a Mesa Boogie Mark V 25 and those amps have their own great sounds, but the JJ Jr is in a class all it's own. Combine all the features that this incredible amp has with the absolute best customer service in the industry and you've got yourself a winner! So if your looking to get a low wattage (but LOUD) amp, give the Friedman line a try, you won't regret it
Music background: 59 y/o hobbyist
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