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 Jul 24 - Jul 29

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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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Brandie Luvlee
Birmingham, US
★★★★★ 5
Unique bouncing
Color: Green, Size: Medium (2-1/2 in (Pack of 2))
Outside of many my kids🐶 balls this one his best favorite for than the others as the bounce is high and unpredictable that makes it more intellectual and exciting for him
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Reviewed in the United States on May 24, 2026
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SH18750
Lowell, US
★★★★★ 5
Pups Love
Color: Green, Size: Medium (2-1/2 in, (Pack of 1)), Color: Green, Size: Medium (2-1/2 in, (Pack of 1))
As you can see from the photo, my pup absolutely loves it! It’s the perfect size for him and for reference he’s 25 pounds. It’s got a nice weight to it, but it’s soft enough to be able to throw and not worry about damaging the walls. We just started playing with it today, but it seems very durable.
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Reviewed in the United States on March 27, 2026
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Randy Brock
Boise, US
★★★★★ 3
Fun for the first day, but just get the round balls.
Color: Green, Size: Medium (2-1/2 in (Pack of 2))
These balls do work, but they bouncy pretty much like a regular chuck it ball. They do NOT fit in the chuck it handheld ball launcher, which makes them a pain to throw. The green color also makes them somewhat challenging to find when the grass is long. That said, they do work as intended, and the dogs like them the same as all the other chuck it balls we own. As the person who had to throw them, my advice would be to just get the round balls that fit in the ball launcher. Durability: 9/10 they hood together better than the traditional balls without the hole (that crack down the seam over time). These have yet to crack despite the same wear and tear. Pros: durable, dogs like them, they do sink in water Cons: green color, hard to fit in handheld ball launcher
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Reviewed in the United States on June 3, 2023
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Shopaholic
Massapequa, US
★★★★★ 5
Winner!
Color: Green, Size: Medium (2-1/2 in (Pack of 2))
I recently got the BOUNCY DOG BALL TOY for my fur baby, and I'm thrilled to say that it's a total winner! The best feature of this interactive dog toy is its erratic bounce, which keeps my pup on their toes and makes every playtime session full of surprises. The squared corners of the ball cause it to bounce every which way when thrown, making it an exciting challenge for my dog to catch. And because it's compatible with the Chuckit! Ball Launchers, we can play fetch for hours on end without ever getting bored. One thing I love about this fetch toy is its durability. It's made of tough rubber that can withstand even the most aggressive chewers, and it's super easy to clean after a long day of play. Plus, with two balls included, we always have a backup when one inevitably gets lost.
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Reviewed in the United States on February 24, 2023
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Raiya
New York, US
★★★★★ 5
good for puppies who like to eat pee pads
Color: Blue, Size: 28" x 34"
this is the only holder that worked for my puppy who loved chewing up pee pads!! good quality holder and the peace of mind makes the price worth it. it's easy to clean if they pee on the edges and helps puppies learn to stay on the pad. only downside in my opinion is that i have to fold the pee pad to make it fit well... not too much of an issue since pee pads already have a crease in them :) definitely recommend!! and i already bought two lol
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Reviewed in the United States on April 16, 2026

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