All demos

JPTR FX Warlow

Jul 25, 2024
Read next Electro Harmonix Nano Big Muff Series: All 7 Big Muffs Compared

The Warlow by JPTR FX is a beast of a Big Muff style pedal.

Itā€™s an op-amp Big Muff variation. So instead of transistors driving the signal, itā€™s op-amps. Also, it uses LEDs instead of the standard diodes for its clipping stages.

All this results in massive sound. The classic mid-scooped sound seems very pronounced in this pedal. There is a really fat low-end coming through and a pretty bright sizzling top end.

I noticed a few things where I could see how Chris from JPTR FX put his own take on this circuit:

  • It screams ā€œSmashing Pumpkinsā€ due to the pronounced bass mixed with some nasaly upper mids and highs
  • Really, with DISTORTION all the way up is where the texture feels just right
  • The toggle switch to flip between different tone stack (Muff-style, Muff/RAT hybrid and RAT filter) is genius. I like the classic Big Muff tone stack but the middle hybrid position is my favorite for rhythm parts.

The Warlow can be pretty bright if you need it to. Overall, Iā€™m impressed by how much the tone knob is actually doing. It seems to have a huge range.

I also think at very low gain settings, there are still very useful tones in this pedal. Thatā€™s also not common for most Big Muffs.

With the volume up, the Warlow has some decent output that can drive an amp.

So even if this thing was designed to give you those gnarly grunge textures, there are a lot of other sounds in it.

If youā€™re trying to get that screaming, sustaining tone from Billy Corgan, I think there is no better pedal on the market today.

Signal Chain

Related Posts

Where to Buy

Jptr Fx Warlow
reverb logo Just one more pedal...

Buy through these links and support Loopy Demos at no extra cost to you.

Get detailed specs on JPTR FX's website

Similar Pedals

<div data-loopydemos="jptr-fx-warlow" data-title="JPTR FX Warlow | Loopy Demos" data-width="400" data-height="660"></div>
<script src="https://loopydemos.com/embed.js" async></script>

To embed this demo on your website, copy & paste the code above or customize your demo widget