Grumpybot Buffer

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Sometimes your signal just needs a little push, which is why we designed the GrumpyBot Buffer

This very clever design delivers a very clean, quiet, low impedance signal, and delivers a tone which is vibrant and natural without sounding harsh the way some buffers can. 

We also understand how valuable your pedalboard space is so we've made it ultra compact.


POWER - 9V-18V DC 
DIMENSIONS - 7cm x 4cm x 3.5 cm
WEIGHT - 65g

The GigRig warrants the product to be free from defects in material and workmanship for a period of 2 years from the original date of purchase. If the product fails within the warranty period, The GigRig will repair or, at our discretion, replace the product and cover the cost of return shipping to the original purchaser. This warranty covers defects in manufacturing discovered while using this product as recommended by The GigRig. This warranty does not cover loss or theft, nor does the coverage extend to damage caused by misuse, abuse, unauthorized modification, improper storage, lightning, or natural disasters. Damage caused by any of the above circumstances may result in a non-warranty repair fee. Legal: In the case of malfunction, the purchaser’s sole recourse shall be repair or replacement, as described in the preceding paragraphs. The GigRig will not be held liable to any party for damages that result from the failure of this product. Damages excluded include, but are not limited to, the following: lost profits, lost savings, damage to other equipment, and incidental or consequential damages arising from the use, or inability to use this product. In no event will The GigRig be liable for more than the amount of the purchase price, not to exceed the current retail price of the product. The GigRig disclaims any other warranties, express or implied. By using the product, the user accepts all terms herein.

4 Reviews Hide Reviews Show Reviews

  • 5

    Posted by Peter Brown on 29th Apr 2020

    Not all buffers are alike. This one is perfect. No sound colouration; just keeps things bright and perky the way they were when they left your guitar jack.

  • 5
    Grumpybot buffer

    Posted by graham1987kelly@gmail.com6 on 7th Nov 2019

    Size: very small and compact. Material: very hard metallic box, plastic in/outputs but very sturdy. Look: looks really cool with the shiny angry eyes!! Sound : sounds really great. Very transparent, just gives you back those highs lost with multiple cables, and doesnt effect your sound in any negative way. There is no noise added to your sound either. Cons: It would be cool to see a version with ins and outs so you could use it and the biggining and end of your chain. Overall : a really great investment for and guitar player going through multiple cables.

  • 5
    What a difference...

    Posted by Roland Ashdown on 22nd Nov 2017

    Never knew something so small, in a lovely little case, and so unassuming, could do something so dramatic! One of the better investments you could make. Thanks.

  • 4

    Posted by Mark Fletcher on 19th Aug 2017

    Nice quality and construction and I liked the 'boutique' packaging. Good, quick service with a status email whenever a handler had a wee or sneezed. I bought this for a different reason, but tried A/B-ing a PBass->Amp with PBass->GrumpyBot->Amp. To my ears, with the buffer sounds significantly better. It seems to round-off & warm-up an otherwise standard/nasal/clanky tone: I assume there is some colouration from the internals, but like to think the GrumpyBot is decoupling things for the instrument's real tone to come through. Still a little bit disgruntled with the price for something so simple, but won't bass without it now.