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Rated 5.0 out of 5 stars
8 Reviews
Regular price $199.00 USD
Regular price Sale price $199.00 USD
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At it's core was the Ampeg VH140c but don't be fooled, I couldn't help myself but to make a few [more] tweaks to better fit my taste. I have sat on this version for over a year when I started my amp and it’s what FleshRot should have always been. I found the circuit to be a bit darker than I prefer so first up was adjustments to the filtering. While I was in there tuning it, I have adjusted the tapers on the knobs as well to allow for more ease in dialing in your tone. I found the original amp to be a bit touchy on some the controls.

This is the one for you if you're looking for heavy death metal brutality to put in front of your amp or use as a preamp into your interface or power amp.

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Name Location Description
Gain External Controls the amount of distortion. There is alot of it.
Level External Controls the output volume.
Tight External Tighten up that flub in your low end without thinning it out.
Full CCW for v1.
Low External Cut/boost the bass frequencies.
Mid External Adjust the amount of the mid scoop.
Shift External Adjust the center frequency of the mid scoop.
Noonish for v1.
High External Cut/boost the high frequencies.
Pres[ence] External Unbox that top end in higher frequencies.
Bypass LED Brightness Internal Adjust overall brightness of front LED.
Default setting at minimum (full CCW).


This product contains internal circuitry to increase the 9VDC supply to higher voltages for additional headroom.
This product contains THE overvoltage circuit for 9v input only.





Soft click (1.1KGf) mechanical 3PDT.


  • Free Shipping

    Free USPS Priorty Mail shipping in the continental USA.

    International shipping rates calculated at check out.

    Please note international shipping times can be days to weeks. Unfortunately, this is out of my control.

  • Built To Order

    Unless otherwise noted, all builds are built to order. I build on my nights and weekends so build-time can vary but is typically 7-9 days from order. Excluding preorders. For preorders, see preorder details on product page for estimated shipping.

Rated 5.0 out of 5 stars
Based on 8 reviews
Total 5 star reviews: 8 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
100%would recommend this product
8 reviews
  • JW
    Jared W.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Blistering Suffo in box!

    I am always chasing high gain tones of my fav bands/artists and Suffocation always has my favorite DM tone on albums such as Effigy and Pierced...This pedal does it and MORE! You can dial in that grinding classic DM tone as well as sculped out some modern tight tones. Absolutely love this thing, best preamp pedal! I will be glad to buy more from ThisHeavyEarth!

  • BJ
    Brian Johnston (.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Better than Diezel Herbert

    I love the Diezel sound (I realize this is based on an Ampeg model, but they have similar characteristics). I almost always chose the Diezel preset on my Fractal FM3. Then I got the Diezel Herbert Preamp and that often was a high-gain go-to sound. Then I got the Flesh Rot v2 and there's no comparison. The amount of sculpting possible with the Flesh Rot cannot be compared, and it cuts through the mix far better than the Herbert. Nothing but praise. I have this combined with the Grim 3 OD and they sound great together. All into a basic clean channel amp.

  • J
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    5 Stars

    This pedal is made to pulverize and it does just that

  • M
    I recommend this product
    Rated 5 out of 5 stars
    4 months ago
    5 Stars

    Awesome pedal! Absolutely Disgusting tone. Love it for playing Dying Fetus Or Cannibal Corpse

  • CP
    Cody P.
    I recommend this product
    Rated 5 out of 5 stars
    7 months ago

    This pedal absolutely deserves its name. It's truly sounds like flesh rotting off the bone. The controls are very versital but not difficult to dial in a great tone. It's heavy, it's grainy and it's still clear with plenty of attack. Leads sound huge with the right settings. Sounds fantastic in the effects loop or in front of the amp as song as you adjust the controls to compliment the way you are going in. Build quality is superb.

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