feedback pedal *On Sale* Harp Rod PI Effects Harmonica Pedal. Feedback P.I. Pedal.  Includes Free USA Shipping
SKU: 14931820541
feedback pedal

feedback pedal *On Sale* Harp Rod PI Effects Harmonica Pedal. Feedback P.I. Pedal. Includes Free USA Shipping

Sale price$23.52 Regular price$26.13
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Description

feedback pedal *On Sale* Harp Rod PI Effects Harmonica Pedal. Feedback P.I. Pedal. Includes Free USA ShippingFeedback is an elusive criminal. Thats why you need a detective! The Feedback P. I is a device that will help you eliminate the threat of feedback on any stage. It combines the three main approaches for fighting feedback all in one box: An active notch filter, a noise gate, and a Vol knob that can act as a PAD. The active notch filter will take care of the fundamental frequencies that are causing feedback. The Noise Gate acts as a life insurance,

Feedback is an elusive criminal. That’s why you need a detective!

The Feedback P.I is a device that will help you eliminate the threat of feedback on any stage. It combines the three main approaches for fighting feedback all in one box: An active notch filter, a noise gate, and a Vol knob that can act as a PAD. The active notch filter will take care of the fundamental frequencies that are causing feedback. The Noise Gate acts as a life insurance, cutting the signal while you are not playing. The Vol knob goes just a couple of decibels above unity, so it can be used as a PAD if you are forced to use a higher gain amp.

How to use:

Right is IN

Left is OUT

1.- Set the VOL knob at unity (just a few degrees lower than fully clockwise).
2.- Start with the FREQ knob all the way to the right.
3.- Turn your amp and pedals past the feedback threshold. The idea is to intentionally create feedback.
4.- Once the feedback appears, start turning the FREQ knob to the left until the feedback goes away. You’ll likely find a few spots (or a range) where feedback disappears, but try to find the optimal position at the higher end of the frequency range.
5.- (Optional) Set the Noise Gate to 12 o’clock and engage the switch (up position). If your band is loud, you might need to turn the knob further to the right.
Volume: Set the Vol at unity if you are using a feedback-friendly amp. If you are using a high-gain amp, move the Feedback P.I to the end of your chain and set the Vol knob to 12 o’clock. This will turn the pedal into a PAD that will help to reduce the gain of the amp.

FREQ: This knob sets the frequency affected by the notch filter. It ranges from 400hz to 7000hz. The goal is to find the highest offending frequency. This will better preserve your tone.

ON: Turns the noise gate on or off. When off, the noise gate is bypassed.

GATE: Sets the threshold of the Noise Gate.

Right is IN

Left is OUT

The power consumption of the Feedback P.I. is around 20mA. It doesn't need much power to run, so any 9V DC (center negative) Power Supply should be enough to power this pedals and a handful of others. 

 

Feedback Pedal

User Manual

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
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SKU: 14931820541

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My2Cents
Birmingham, US
★★★★★ 5
Good bang for the buck, Solid colors!
Color: Multicolor, Size: 1 Count (Pack of 4), Style: Fine
I added the Staedtler 318-WP4 Lumocolor Permanent Universal Pens to my art supplies, and they have quickly become a favorite. The fine point of 0.6mm allows for precise and intricate detailing in my artwork. The assorted colors in the set are vibrant and versatile, making them suitable for a wide range of creative projects. These pens are not only reliable but also long-lasting, ensuring that my art stands the test of time. A fantastic addition to any artist's toolkit!
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JBM
Carnegie, US
★★★★★ 4
professional and personal use.
Color: Assorted Colours, Size: 1 Count (Pack of 1), Style: Medium,Permanent,Fine
The STAEDTLER Lumocolor Universal Pen is a versatile and reliable tool that I highly recommend for both professional and personal use. Here's why it's become a staple in my collection: Pros: 1. **Versatile Medium**: The medium felt tip of this permanent marker is perfect for a wide range of applications. Whether I'm writing, drawing, or labeling, the tip provides consistent lines and smooth, effortless writing. 2. **Permanent Ink**: The permanent ink dries quickly and is waterproof, smear-proof, and fade-resistant, making it ideal for projects that require long-lasting durability. I've used it on various surfaces, including paper, cardboard, plastic, and metal, and the results have been consistently excellent. 3. **Vibrant Colors**: The ink colors are vibrant and bold, adding visual impact to my projects. Whether I'm using black for precise labeling or opting for a pop of color for creative purposes, the Lumocolor Universal Pen delivers rich, saturated hues. 4. **Comfortable Grip**: The pen features a comfortable grip that allows for extended periods of use without causing hand fatigue or discomfort. The ergonomic design ensures a secure and comfortable hold, making it a pleasure to use for both short and long writing sessions. 5. **Durable Construction**: STAEDTLER is known for its high-quality craftsmanship, and the Lumocolor Universal Pen is no exception. The pen is well-built and durable, withstanding daily use without drying out or experiencing ink leakage. Cons: 1. **Slightly Pricey**: While the quality of the Lumocolor Universal Pen justifies its price, it may be slightly more expensive than other permanent markers on the market. However, I believe the reliability and performance are well worth the investment. Overall, the STAEDTLER Lumocolor Universal Pen is a top-notch permanent marker that consistently delivers exceptional results. Its versatility, vibrant colors, and durable construction make it a valuable tool for any creative or organizational endeavor.
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Katelyn Elizabeth Gulotta
Lexington, US
★★★★★ 5
Long lasting
Color: Assorted Colours, Size: 1 Count (Pack of 1), Style: Medium,Permanent,Fine
Perfect as a Nurse to write on anything
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Alexander Guzman Rojas
Lake Worth, US
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Excelente
Color: Assorted Colours, Size: 1 Count (Pack of 1), Style: Medium,Permanent,Fine
Súper prácticos
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Reviewed in the United States on March 12, 2026
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H. Stern
Carnegie, US
★★★★★ 5
Great value solar watch
Color: Blue
Great watch for the money. Works exactly as promised. Directions could have been much better but were adequate.
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Reviewed in the United States on April 26, 2026

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