ground fx pedals Ground FX Koloss
SKU: 88280466957
ground fx pedals

ground fx pedals Ground FX Koloss

Sale price$23.71 Regular price$26.34
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Ships within 48 hours · Estimated delivery Jun 29 - Jul 4

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Description

ground fx pedals Ground FX KolossNo Taxes, Duties, Tariffs Fast Free Shipping Free Returns: $269 is your absolute final total cost here for the Ground FX Koloss Muff pedal. Handmade in Hamburg Germany, the Ground FX Koloss is not a replica of any existing Muff. Apart from an additional mid pot that interacts with the tone pot, youll also have a saturation control, a very nice feature that controls the fatness of the Koloss pedal. All Muffs out there have two gain stages. Some of

No Taxes, Duties, Tariffs - Fast Free Shipping - Free Returns: $269 is your absolute final/total cost here for the Ground FX Koloss Muff pedal.

Handmade in Hamburg Germany, the Ground FX Koloss is not a replica of any existing Muff. Apart from an additional mid-pot that interacts with the tone-pot, you‘ll also have a saturation control, a very nice feature that controls the fatness of the Koloss pedal.

All Muffs out there have two gain stages. Some of these Muffs allow a different clipping in the second stage. But Ground FX didn't like these clipping options available via toggle, so they decided to add a third gain stage, that can be activated via footswitch.




The first two gain stages are based on SI-diodes, and produce very doomy and gnarly distortion/fuzz sounds. The third stage brings in some GE-diodes into the circuit. Expect pure thickness and a lot of deep, low end from the Koloss!

Koloss is a perfect pedal for bassists as well. That's why Ground FX integrated an active blend circuit to mix the dry and wet signal... ideal for bass players too!

CONTROLS:
Tone, Mid, Gain, Saturation, Blend, and Volume.

FEATURES:
  • True Bypass - when the pedal is off, your signal is untouched.
  • Relay Switching - the newest kind of switching, with less noise.
  • High Quality Clickless Switches - no loud click to turn it on/off.
  • Silver Sparkle Enclosure - perfect look for the Ground FX deep, dark sounds.


Power Source (sold separately):
This pedal does not use a battery
, it uses a standard 9 Volt DC, Center-Negative power supply (like Boss and most all other guitar pedals use).

Dimensions: (including all knobs and inputs)

Length: 5"
Width: 3 5/8"
Height: 2 3/8"

Included in Box:
Ground FX logo branded tote bag, and stickers.

Shipping:
Ships fast! Usually same day, with Free UPS Shipping in U.S. with tracking (1 biz day processing, 1-3 biz days transit time usually). 1 and 2-Day guaranteed shipping are also available.

Our added value, when purchased here at coolguitarshop.us:
  • Best Total Price: $269 is your absolute final/total cost here.
  • No Sales Taxes, Duties, or Tariffs: We pay all of these for you!
  • Fast Free Shipping in U.S.
  • No Risk: Try it on your own rig for 30 days. Don't love it? Return it for a full refund... no hassles, no costs. (We'll send you a prepaid return label link.)
  • Rock-solid customer service, 365 days a year.

Get into that classic Big Muff sound, but a bit deeper and darker, with some added features, made for bass players too. The Ground FX Koloss brutal high gain Muff pedal awaits you. Handmade in Germany!

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 88280466957

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Amazon Customer
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★★★★★ 5
Worked great, saved me hundreds.
Size: 8 Fl Oz (Pack of 1)
I've had issues with the carburetor on my 2003 Honda ATV for years. It has needed cleaned regularly to stay running, and one repair shop wanted over $400 to replace the carburetor. One treatment with STA-BIL and it's running smooth again. Very impressive.
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Reviewed in the United States on May 21, 2026
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Great for 2 cycle, meh for 4 cycle.
Size: 8 Fl Oz (Pack of 1)
This stuff is flat out amazing for 2 cycle small engines, works like advertised. 4 cycle isn't as good, if your engine hasn't ran in years, you'll still have to clean the carb, but it does help some. The 2 cycle oil for one is a lubricant and inhibits varnish buildup (especially a synthetic premium brand), and usually premium oil has a fuel stabilizer in it. Plus if you don't have a float bowl, there's not enough fuel for phase separation. I also use it in my mix for my ultrasonic cleaner when cleaning carbs. Overall a very good product, but understand it's limitations in this modern age of ethanal fuel.
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Reviewed in the United States on April 12, 2026
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G123
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★★★★★ 5
It works well.
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Great product that delivers on what it says it does. This won’t fix a mechanical problem or damaged component, but it will fix a stuck float, varnished tank, gummed up jet, or partially blocked emulsion tube.
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R Duke, Texas
Boise, US
★★★★★ 5
It Works
Size: 8 Fl Oz (Pack of 2)
This stuff works. I added it to my four 5 gallon gas cans before filling them up. I’ve used 10 gallons of gas in my lawn tractor so far and can tell it likes it. I do annual maintenance before summer and check or change the spark plug so it performs the best it can. I have 508 hours on it and with this it seems like it idols smoother, which indicates it has helped in the carburetor since I haven’t had to remove it and clean it. Works great.
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Reviewed in the United States on April 30, 2026
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Dennis
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★★★★★ 5
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