pedal pi *On Sale* Harp Rod PI Effects Harmonica Pedal. Feedback P.I. Pedal.  Includes Free USA Shipping
SKU: 75141441959
pedal pi

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

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Description

pedal pi *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

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SKU: 75141441959

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Felicia
Carnegie, US
★★★★★ 5
Love this book
Format: Paperback
Son loves this series of books
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Reviewed in the United States on May 12, 2026
K
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Karissa Coats
Charlottesville, US
★★★★★ 5
Buy these now!!
Format: Paperback
My 14 year old told me this morning… mom, I need more of these books. I’m going to finish this one in 3 days! He loves it
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Reviewed in the United States on March 4, 2026
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Ashleigh Wiswell
Lowell, US
★★★★★ 5
Great series
Format: Paperback
Another fantastic installment in the series! This book dives deep into the major European battles of WWII, presenting them in a way that’s exciting and easy for kids to understand. The maps and illustrations were a huge plus, making history both fun and educational.
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Reviewed in the United States on December 28, 2024
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Brittany McCue
New York, US
★★★★★ 5
A Must-Have for History Enthusiasts and Young Readers!
Format: Paperback
As an avid history enthusiast and a parent, I am always on the lookout for engaging and educational books that can captivate my children's interest in the subject. "Great Battles for Boys: Bunker Hill to WWI" exceeded my expectations on all fronts, making it an absolute gem in our family library. From the moment I picked up this book, I was impressed with the attention to detail and the beautifully presented information. The author, Joe Giorello, has a remarkable talent for simplifying complex historical events and presenting them in a manner that is both informative and accessible to young readers. This book is perfectly suited for boys aged 8-12, but it can certainly be enjoyed by readers of all ages. The book takes readers on an incredible journey through some of the most significant battles in history, covering a wide range of conflicts from the American Revolution to World War I. Each battle is meticulously described, allowing young readers to visualize and understand the strategies, key figures, and outcomes of these momentous events. The inclusion of maps, illustrations, and photographs further enhances the reading experience, making it all the more immersive. One aspect that sets "Great Battles for Boys" apart from other history books is its interactive nature. Throughout the chapters, readers are encouraged to actively engage in the material through trivia questions, hypothetical scenarios, and thought-provoking discussion points. This interactive approach not only keeps young readers engaged and entertained but also encourages critical thinking and a deeper understanding of the subject matter. Additionally, I appreciated the inclusion of personal stories and firsthand accounts, which added a human element to the historical events. By highlighting the experiences of individual soldiers and their contributions, this book successfully humanizes the battles and helps young readers relate to the courageous men who fought on the frontlines. In terms of writing style, Giorello has a knack for keeping the narrative engaging and exciting without sacrificing historical accuracy. The pacing is well-balanced, and the author's passion for history shines through in every chapter. It's clear that extensive research was conducted, and the information is presented in a manner that is both educational and entertaining. In conclusion, "Great Battles for Boys: Bunker Hill to WWI" is an outstanding resource for history enthusiasts and young readers alike. With its engaging writing style, interactive elements, and comprehensive coverage of pivotal battles, this book is an excellent addition to any library. Highly recommended!
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Reviewed in the United States on October 23, 2023
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GT Family
Grantham, US
★★★★★ 5
8yo son and mom love this book
Format: Paperback
I’m a mom of two boys and one girl. I would first like to address the people complaining about the title saying “for boys.” The author has addressed this too and it’s part of the reason why I purchased this book. Boys are falling behind in school and reading. Not sure why some people are allowed to review these books when they haven’t read them or purchased them. Do your research if you have a boy in your life. I would also like to point out that bookstores frequently have shelves dedicated to girls about strong women, strong girls, etc and yes boys can read books in those sections just like girls can read these Great Battles for Boys books. My 8yo son loves history and is devouring this book. I highly recommend. This book is really exciting and I (mom) am enjoying it too. We use it for read aloud time and independent reading. As soon as I finish this review I will be ordering more in the series, per my sons request.
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Reviewed in the United States on November 17, 2021

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