Congratulations on your new JB Nano! You now have the unique sound of the award-winning JangleBox compressor, but in a much smaller footprint. This pocket rocket has all the power of the JB with even greater performance flexibility.
The bold sustain will give your Ric, Tele, Gretsch, Strat — whatever the guitar — remarkable presence. Unlike pedals that clip or distort the original signal, the JB Nano expands the compression “sweet spot” to maintain a clean, even tone, with true bypass.

Ideal for a second, smaller pedal board, or to free up some real estate on your current board. Don’t use a pedal board? The JB Nano is small enough to just pop in your guitar case.

Compact, powerful and performance ready, the JB Nano is ruggedly constructed
for demanding pros and aspiring artists alike. Whether you’re looking to get that Beatles/Byrds chime, never-ending slide sustain, Nashville “squish,” or just a big, clean boost, the JB Nano delivers the distinctive compression edge.


The JB Nano is easy to set up

  • As every guitar-and-amp combination is different for each guitarist, you’ll want to experiment with the JB Nano settings to get the sound you prefer. We suggest starting with the Gain and Attack knobs turned “12:00 o’clock” position, then adjusting the compression to your satisfaction from there.
  • The Gain setting adjusts volume and amount of compression. The Attack setting adjusts the level (intensity) of compression.
  • The right footswitch is a pre-set treble boost.
  • The JB Nano is designed to expand the compression “sweet spot” and not produce any distortion or oscillation. Depending on your amp settings, you should be able to set the Gain and Attack to full volume without creating any “buzz” with your guitar.
  • When daisy-chaining a series of additional pedal effects with the JB Nano, we recommend you start by placing it first in the sequence (your guitar should plug into the Nano) in order to take full advantage of its true bypass.
  • If you use a 9V battery to power the JB Nano, compression will decrease as the battery wears out. Remove the four screws on the underside of the box to replace the battery.


The JB Nano operates with either a regular 9V battery (supplied) or 9V DC power adapter, pin negative polarity, 150 mA or greater.

WARRANTY: JangleBox LLC warrants that the JB Nano shall be free from defects. Consumer must notify JangleBox LLC in writing, within one year of delivery of the JB Nano, of any claim that there is a defect in the JB Nano. If the JB Nano is found defective by JangleBox LLC, its sole obligation under this warranty is to remedy such defect in a manner consistent with JangleBox LLC’s regular business practices.
The above is a limited warranty and it is the only warranty made by JangleBox LLC. JangleBox LLC makes no other warranty express or implied and expressly excludes all warranties of merchantability and fitness for a particular purpose. JangleBox LLC shall have no liability for consequential, exemplary, or incidental damages resulting from or arising out of the use of the JB Nano.

Copyright ©2014–2023 JangleBox LLC

Note: This User's Manual is adapted from the official manual created by JangleBox in PDF format, without modification of the content. We just rewrite the PDF, into responsive mobile friendly pages.So, you can read this document anytime and anywhere.

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