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Description
EARTHQUAKER DEVICES BARROWS fuzzGreetings, tone archaeologists and fuzz disciples! You are looking at a portal to one of the most revered and mystical circuits in the pantheon of guitar effects the classic three transistor TB MkII. The Barrows pays homage to this iconic germanium temple while adding modern refinements that would make even the most discerning vintage purist weep tears of harmonic joy. The original MkII circuit was the secret weapon behind some of the most crushing
Greetings, tone archaeologists and fuzz disciples! You are looking at a portal to one of the most revered and mystical circuits in the pantheon of guitar effects - the classic three-transistor TB MkII. The Barrows pays homage to this iconic germanium temple while adding modern refinements that would make even the most discerning vintage purist weep tears of harmonic joy. The original MkII circuit was the secret weapon behind some of the most crushing riffs ever committed to tape. From dawn-of-metal caveman dirges to the wall-of-sound symphonies conjured by the highest tiers of shoegaze sorcerers, this legendary topology has been the foundation of countless sonic monuments. Now, with Barrows, you can channel that same lightning-in-a-bottle magic while enjoying the reliability and versatility that modern craftsmanship provides. At its heart, Barrows features a trio of carefully matched germanium transistors nestled within finely tuned circuitry that has been lovingly coaxed to produce everything from light, singing distortion to crushing fuzz tones with nearly infinite harmonic-rich sustain. This isn't just another fuzz box - it's a portal to the fabled tones that have haunted the dreams of fuzz fanatics for decades. The Barrows delivers the signature cutting mid-focused tones with plenty of low-end authority and brilliant top-end grind that made the original MkII a studio legend. But unlike its temperamental ancestors, Barrows includes several modern upgrades that transform it from a vintage curiosity into a contemporary powerhouse. The phase-corrected and buffered output ensures it plays nice with other pedals down the line, while the increased output volume and wide range of fuzz tones make it a versatile sonic weapon. All this power is packed into a compact footprint that saves precious real estate on your pedalboard, because every square inch matters when you're building your sonic arsenal. Gone are the days of finicky positive ground power requirements and battery-only operation. The Barrows runs on standard 9v power supplies, making it compatible with any common pedalboard power source. The true bypass switching ensures your signal remains pristine when the pedal is disengaged, while the MkII circuit works its germanium magic when called upon. Controls "¢ Level: Controls the output volume of the Barrows. Unity gain sits around noon, but you'll find plenty of volume boost available when you need to push your amplifier into blissful submission. "¢ Attack: This is where the magic happens. At lower settings, Barrows provides singing, amp-like distortion with superb touch sensitivity. As you rotate clockwise, the circuit transforms into an increasingly aggressive fuzz monster, building to crushing, sustain-drenched tones that seem to go on forever. The wide range of this control means you can find everything from gentle breakup to full-on sonic annihilation. Pro Tips For best results, place this pedal first in the signal chain. Like most classic fuzz circuits, Barrows has a very low input impedance and works best when it sees the guitar directly at its input. Do not place a buffer before the Barrows. The Barrows responds beautifully to your playing dynamics and guitar's volume control. Try rolling back your guitar's volume for cleaner tones, then dig in or roll the volume up for more aggressive textures. The germanium transistors give Barrows a uniquely musical response that reacts to your touch like a living, breathing entity. Power This device takes a standard 9 volt DC power supply with a 2.1mm negative center barrel. We always recommend pedal-specific, transformer-isolated wall-wart power supplies or multiple isolated-output supplies. Pedals will make extra noise if there is ripple or unclean power. Switching-type power supplies, daisy chains and non-pedal specific power supplies do not filter dirty power as well and let through unwanted noise. DO NOT RUN AT HIGHER VOLTAGES!Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.2 ★★★★★
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Product Reviews
★★★★★ 5
Made a big improvement in cabin noise—highly recommend
Model: SLH20025
Siless Hybrid made a huge difference in reducing noise in the floor of my truck cabin. In some areas, there was basically just bare sheet metal between the inside and outside, so adding this really helped the truck feel more solid and noticeably quieter on the road.
I used Kilmat on the doors, and honestly I wish I had used Siless Hybrid there too, but it was too late by the time I realized the difference. This material is very sticky, easy to cut, and simple to apply, which made the install pretty smooth.
Just a heads-up: the tacky side gets messy and will bond to clothing really easily, so be careful during installation. Overall, I’d definitely buy it again—great product with real results.
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Reviewed in the United States on December 2, 2025
★★★★★ 5
Very good product at a fair price
Model: SLH20025
Very good sound deadener and heat shield, it is a bit sticky to work with, but easy to shape and cut
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Reviewed in the United States on April 19, 2026
★★★★★ 5
I wish I had Siless 20 years ago!!!
Model: SLH20025, Model: SLH20025
I have installed all kinds of insulation in vehicles over many years. I only needed to purchase 2 boxes to complete the entire interior siding of my 2025 chevy express, what a great value! I wanted to insulate my locksmith van for sound and heat. The sound reduction virtually eliminated the road noise. These panels also look amazing. It got up to 110F in the sun with the doors closed. After adding Siless insulation the temperature maxed out at 97F. That is a massive difference. Plus, I didn't even finish with the roof before testing. Siless Hybrid 3in1 was extremely easy to cut and adhere onto metal panels. I'm impressed with the quality of the individual panels and the adhesive is not toxic smelling compared to some others. My favorite thing about these panels is you can actually take them off and readjust them before they finally stick and they do not leave any black residue behind when you pull them up to adjust them. All I needed was a heat gun, knife and a roller to complete this job. The size of each panel is perfect, you can handle them with ease. I probably won't need your product again for a while, but when I do I will definitely be back.
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Reviewed in the United States on September 21, 2025
★★★★★ 5
Works well and is easy to install.
Model: SLH20025, Model: SLH20025
I was sound and heat insulating a generator bay in my class A RV so I did three tests before and during material application: I did a sound level test to see how effective the material was for my application, a "stickiness" test, and a flammability test. This was indoors on a dry 78°F day. From beginning to end, the entire process, including testing, took 5 hours to install 25 sqft or material in a very complex area. One hour for cleaning, 3 hours for installation, and 1 hour for test setup and testing.
Using a sound meter, I took before and after readings and determined that I reduced the sound level by 2.2 db (40% energy decrease) with a noticeable decrease in sound and frequency. The generator bay is located under the master bedroom in the aft portion of the coach. The sound went from a rattling, vibrating generator noise to a more tolerable low level rumble.
The material was easy to apply. I did some testing prior to application and determined that surface preparation is key. I cleaned my painted metal surface and then degreased with acetone and the material stuck well. Be careful and purposeful when you apply the material because once it was stuck to the metal, it was quite difficult to remove or reposition.
Since it was going to be installed into a gasoline powered generator bay located under our sleeping quarters, I did some flame testing to determine the level of risk. Although not highly flammable after installation, my testing revealed that the PE used will catch on fire under certain circumstances. In order to reduce the risk, I used aluminized duct tape to ensure that all the edges were sealed and the PE was not exposed to direct flame in the event of a fire. I also decided to install an automatic fire extinguisher as an added precaution. In all fairness there should be one installed in the generator bay anyway.
All in all, I am very satisfied with the product and the results. I have recommended this product to my other RV owner friends.
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Reviewed in the United States on April 13, 2025
★★★★★ 5
Great product. Best value i could find
Model: SLH20025
I'm using talk to text, so forgive any grammatical and spelling errors.
I ordered this product after doing a bit of research on sound dampening materials. I had been doing car stereo for quite some time since my teens. Itook a break for 20 years or so. I'm now 40 and back in the day there was dynamat. And that was about it. as irecently bought a new 2017 F350 crew cab. I wanted to put in a new stereo system and being that it was my dream truck. I was going to put in my dream stereo. But before I could do that, I needed to start with the sound deadening. I looked into today's leading product and found a company called resonx. Had taken their place as king of the hill in sound deadly. I researched their products and found the materials they were built from and Silas was the closest match at the best price I used Silas Max. First, then Silas 3 and 1 hybrid over that on all exterior panels. Then, on the interior panels. I used the 3 and 1 hybrid . on the floor I used Silas Max. Then, the 3 and 1 hybrid, then Silas liner over that the car is incredibly quiet . As far as sound dampening and deadening, it works very well for the money really can't beat it. Do your homework no How and where to apply it? And you really can't go wrong or about $400. I did. What would have cost me easily? Two thousand in other brands highly recommend the product prep work.Is everything do your homework?Do it right and you will be happy with this stuff
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Reviewed in the United States on May 6, 2026