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Keeley Java Boost Guitar Effects Pedal  

Product #150356

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Item Note:

This product has been discontinued but may be available as a Open Box item.

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See All Keeley Fuzz & Boost Effects Pedals

The most musical boost pedal ever built is back and better.

The Java Boost guitar pedal from Keeley Electronics brings back the same incredible response and sound quality of the heralded late '60s treble boosters, and with more control over the output frequencies range and boost gain. Handcrafted with the finest components, including the NOS Mullard OC44 transistors used in the '60s original. Especially killer in front of a tube amp. Cream colored knobs and violet LEDs.

  • Sound and response of the legendary '60s treble boosters
  • Enhanced control
  • Handcrafted
  • Uses the same transistors used in the original
  • Cream-colored and violet LEDs

Order today and give your sound a boost.

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by PowerReviews
KeeleyJava Boost Guitar Effects Pedal

(based on 1 review)

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Reviewed by 1 customer

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(1 of 1 customers found this review helpful)


Keeley Java Boost works great


from Richmond, VA

Comments about Keeley Java Boost Guitar Effects Pedal:

I was looking for a stomp box to use on leads. I put this after my compressor and before my TS9. It works great. I'm running a bettery in it, as was recommended by Robert Kelley. The knobs are responseive but not too touchy, so they have a smooth feel when you adjust volume or tone. I was able to get the right tone and volume easily. I've been playing with the micro selector to the left, I think thats full range boost. The tone is creamy smooth fuzz, not a stong fuzz like a big muff. It's very subtle. The fuzz sound blends with the boost sound so there's no crackle between the boosted clean sound and the fuzz. It's really nice. I play a Fender Twin 100w pro-tube amp with strats and teles. I put humbuckers in front and center positions and singles in the back. All sound good, especially humbuckers. My old es330td with P90's has mad tone through this thing too. Build quality is solid. You have to take out 4 screws to change the battery. I like the boss trap door better, it's easier. The blue led light is so damn bright it's hard to see the position of the knobs and selector when you look down, especially on stage. I have the Kelley mod TS9 and that has a blue led also. Between the 2 its nearly a light show. The one I got was NOT blue with stripes and white knobs. It was solid blue with chrome metal knobs. If you live around here and play in a band please don't get one, it's my sound and you can't have any. Otherwise, it's awesome, get it.

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