Keeley is proud to bring back our classic Java Boost

Now with a Custom Shop Glow in the Dark Silver Sparkle Finish! By day, it looks like our classic Java Boost. At night, it will be the shining star of your pedalboard!

We used a glow in the dark clear coat for a subtle glow effect when the lights go out. Here’s a shot of an early prototype. Treble Booster designs give you classic cutting guitar tones from the 60’s and 70’s. It is not a clean boost.

The Java Boost for 2018 has a Russian MP41A germanium transistor.

It must be used with a cranked amp that is overdriven or distorting a bit already. Cranking the amp and pedal will result in more creamy, beautiful, sustaining distortion with the Java Boost.

The Java Boost is most widely used with a tube amp set to a bit of overdrive or clipping which is the key to getting a great sound from this pedal. Setting the Java Boost in front of a very clean amp with the volume on 1-2 will surely result in a fairly weak guitar tone! Set the amp for some breakup, then click the Java on. There, you’ll have a fantastic sound and see why people rave about the Java Boost.

The Java Boost is not related to the TS9 or Blues Driver, or any other distortion or overdrive pedal. Boss and Ibanez do not make anything like it!

This product is a Treble Booster by design, not a typical overdrive or distortion pedal. That means, the higher the note played, the more it gets amplified and then, by your amp, distorted. Bass notes get cut in two modes on the Java Boost!

Some people don’t have experience with treble boosters. This can make using the Java Boost difficult if you try to use it with a huge power amp that has tons of headroom or doesn’t distort easily. The trick to get the Java Boost to outperform any other pedal is to have the right amp settings. The amp should be on the verge of breakup or greater. This is where the wealth of tone will is possible.

Another way to run it is before an overdrive pedal. This is the pedal to get if you want a two pedal overdrive setup. Couple this in front of a TS9 or BD-2 and the results are simply amazing. This will add sparkle and life to your solos like no other pedal can.

So what if your amp is set to super clean?!?! No problem, I’ve found that I love the Java Boost in front of most other overdrive pedals! Yes, simply use the Java in front of your blues driver, TS, DS, BD, SD, FF type pedal and you get similar results when the standard overdrive pedal is on.!

Treble Boosters like these have been used for many, many years by the likes of Tony Iommi, Brian May, Rory Gallagher, Eric Clapton, Ritchie Blackmore, Dweezil Zappa and Wolf Hoffmann.

Product specs

FAQs

What type of sound does the Keeley Java Boost (2018 Custom Shop Edition) produce?

The Keeley Java Boost is designed to enhance treble frequencies, providing a classic treble boost that can add clarity and definition to your guitar tone, making it ideal for cutting through a mix.

Is the Keeley Java Boost suitable for use with both single-coil and humbucker pickups?

Yes, the Keeley Java Boost works well with both single-coil and humbucker pickups, enhancing their natural characteristics while adding a vintage-inspired treble boost.

Does the Keeley Java Boost require a specific power supply?

The Keeley Java Boost requires a standard 9V DC power supply, which is typical for most guitar pedals, ensuring compatibility with most pedalboard power setups.

How does the Keeley Java Boost differ from other boost pedals?

The Keeley Java Boost is a treble booster that emphasizes upper frequencies for a vintage tone, unlike many boost pedals that provide a more neutral volume increase.

Is the Keeley Java Boost (2018 Custom Shop Edition) suitable for live performances?

Yes, the Keeley Java Boost is well-suited for live performances, offering a robust build and a distinct sound that can help your guitar stand out in a band setting.