
The Story
No amp embodies the power and signature roar of Diezel Amplification like the 180-watt Herbert. And with the Herbert Pedal, that same searing gain, punishingly tight low end, and finely tuned midrange fits on your pedal board.
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This high-gain stomp replicates its namesake ampâs preamp with precision. Youâll find the same wide-ranging EQ control and foot-switchable Midcut circuit, along with Presence and Deep controls for mimicking the amplifierâs power-section punch.
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To make this stompbox-sized preamp even more flexible, we included a separate output for running directly into a power amplifier, using the Herbert Pedal as your rigâs front end. And you can control it all remotely, thanks to its 1/4" stereo jack.
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If you want to add the savage sounds of Diezelâs Herbert to your setup, but donât need to harness the power of the full head, the Herbert Pedal is your high-gain sonic solution.
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Preamp or stompbox, your choice
Far from just another distortion pedal, the Diezel Herbert pedal offers multiple ways to achieve its ground-shaking tones. If you prefer using pedals for your dirt, youâll find the pedal works beautifully straight into the front of your clean amp. But youâll also find a dedicated âTo Power Amp Inâ output jack that turns the pedal into a fully functional preamp. Plug it into the series effects loop return of any guitar amp or directly into a stand-alone power amp, and youâve turned your amp into your very own Diezel Herbert - perfect for players who often have to rely on less-than-dependable rental backlines.
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Two ways to achieve the Diezel tone
Works as either an overdrive effect or as a stand-alone preamp
Independent âTo Power Amp Inâ output is finely tuned for power amps or series effects loop inputs  Â
When used as a preamp, the Bypass switch mutes your signal
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PEDAL CONTROLS
- Midcut Master: Adjusts the volume of the pedal when the Midcut is on.
- Midcut Intensity: Adjust the intensity of the Midcut.
- Normal Master: Adjust the volume of the pedal when the Midcut is off.
- Gain: Adjusts the amount of gain for the pedal.
- Treble, Middle, Bass: Shapes the EQ and adjusts the overall tone.
- Presence: Contours the high frequency content - simulating the PRESENCE control on the HERBERT amplifier.
- Deep: Increases the ultra low frequency content - simulating the DEEP control on the HERBERT amplifier.
- Guitar input: Connect your guitar to this input.
- Stereo Remote Jack: Tip is switching Mid cut section on/off. Ring is switching Bypass on the âOut to guitar ampâ or Mute on the âOut to power ampâ.
- To Clean Guitar Amp In: Connect to the clean input of your amp.
- To Power Amp In: Connect to the power amp in.
- 12-18V Center Negative Included is a universal 12V power supply and 18V splitter cable.
- Weight: 1.5lbs
- Dimensions: 6.5"L x 5"W x 2"T

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
No amp embodies the power and signature roar of Diezel Amplification like the 180-watt Herbert. And with the Herbert Pedal, that same searing gain, punishingly tight low end, and finely tuned midrange fits on your pedal board.
Â
This high-gain stomp replicates its namesake ampâs preamp with precision. Youâll find the same wide-ranging EQ control and foot-switchable Midcut circuit, along with Presence and Deep controls for mimicking the amplifierâs power-section punch.
Â
To make this stompbox-sized preamp even more flexible, we included a separate output for running directly into a power amplifier, using the Herbert Pedal as your rigâs front end. And you can control it all remotely, thanks to its 1/4" stereo jack.
Â
If you want to add the savage sounds of Diezelâs Herbert to your setup, but donât need to harness the power of the full head, the Herbert Pedal is your high-gain sonic solution.
Â
Preamp or stompbox, your choice
Far from just another distortion pedal, the Diezel Herbert pedal offers multiple ways to achieve its ground-shaking tones. If you prefer using pedals for your dirt, youâll find the pedal works beautifully straight into the front of your clean amp. But youâll also find a dedicated âTo Power Amp Inâ output jack that turns the pedal into a fully functional preamp. Plug it into the series effects loop return of any guitar amp or directly into a stand-alone power amp, and youâve turned your amp into your very own Diezel Herbert - perfect for players who often have to rely on less-than-dependable rental backlines.
Â
Two ways to achieve the Diezel tone
Works as either an overdrive effect or as a stand-alone preamp
Independent âTo Power Amp Inâ output is finely tuned for power amps or series effects loop inputs  Â
When used as a preamp, the Bypass switch mutes your signal
Â
PEDAL CONTROLS
- Midcut Master: Adjusts the volume of the pedal when the Midcut is on.
- Midcut Intensity: Adjust the intensity of the Midcut.
- Normal Master: Adjust the volume of the pedal when the Midcut is off.
- Gain: Adjusts the amount of gain for the pedal.
- Treble, Middle, Bass: Shapes the EQ and adjusts the overall tone.
- Presence: Contours the high frequency content - simulating the PRESENCE control on the HERBERT amplifier.
- Deep: Increases the ultra low frequency content - simulating the DEEP control on the HERBERT amplifier.
- Guitar input: Connect your guitar to this input.
- Stereo Remote Jack: Tip is switching Mid cut section on/off. Ring is switching Bypass on the âOut to guitar ampâ or Mute on the âOut to power ampâ.
- To Clean Guitar Amp In: Connect to the clean input of your amp.
- To Power Amp In: Connect to the power amp in.
- 12-18V Center Negative Included is a universal 12V power supply and 18V splitter cable.
- Weight: 1.5lbs
- Dimensions: 6.5"L x 5"W x 2"T






















