Boomster MK.2

Regular price€209,00
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Boomster MK.2
Boomster MK.2
Boomster MK.2
Boomster MK.2
Boomster MK.2
Boomster MK.2

The JAM Pedals Boomster MK.2 is a boost as we like them at Guitars Rebellion. Gossips will say that a buffer / booster is a very basic circuit and that there are hundreds of pedals on the market that do this. Ok, but how many actually do it well? How many magnify your sound without distorting it and adding noise? Well there, there is much less jostling at the gate!

Externally it is a JAM Pedals, it has a hand painted finish. Each pedal will therefore be slightly different from one copy to another. The controls couldn't be simpler and more intuitive: a Level setting, a mini-toggle-switch for the frequencies to be boosted, and voilà! There is also an input for an expression pedal to use as a volume pedal.
Inside, we have a quality PCB which only confirms the great care that our Greek friends bring to the manufacture of these pretty, colorful pedals. There is a Burr-BrownTM OPA 2132 which will be in charge of managing your signal in complete transparency. Note, the pedal can operate at 9-18V. We recommend that you use it in 18 for maximum headroom.

Connected to a clean channel, we immediately notice the progressiveness of the single control, it is very well calibrated, progressive and usable over the entire race. When the effect is engaged, it does not bring in unwanted frequencies, it does not drastically change your signal, but amplifies it, with a more complex top of the spectrum, a well-rounded bottom and overall more attack, dynamic and responsive. Not bad for a single button hun??! Yes, sometimes it's in the great simplicity that we find the multitude of small details that make your - sound - easier to play, richer and that it passes better through the mix by being more balanced.
You gain an extended frequency spectrum and your instrument is easier to play. In addition to that, these frequencies can be adjusted via the internal trimmers and cover all types of boost needed via the mini-switch. That is the demand of the people?!

Typically, the JAM Pedals Boomster MK.2 is the kind of pedal you leave on all the time. An essential tool for all guitarists as its benefits are obvious, all for an affordable budget.

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For any product in stock, we deliver 90% of orders in less than 20 hours and at the latest within 48 hours (depending on the capacity of the carrier). If the product is not in stock, we will get back to you within 24 hours to give you the most precise deadline possible.


Every musician is different. At Guitars Rebellion, we inspect every pedal and amp before shipment and we tune every instrument, according to your wishes. Do you have a specific need relating to the instrument you are buying? Do not hesitate to ask us when ordering.

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What they say


After a few exchanges by email, I ordered a Strymon Iridium pedal (excellent by the way) which I received 20 hours after shipping.

Google - S. Cayla
La Madeleine, France

Ordered 2 pedals! Received the pedals in one day from Paris to Austria AMAZING!!!! Kind custom service and quick answers.

Facebook - Dave Poglin
Graz, Austria

An ESP order? Guitars Rebellion is the place to go. From advice to delivery, this shop is 5/5 with your eyes closed.

Google - Im Captain
Paris, France
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