SKU: 21474224278
feedback pedal guitar

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

Sale price$19.40 Regular price$21.56
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Description

feedback pedal guitar *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
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 21474224278

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Rachel K.
Waukegan, US
★★★★★ 5
Just as expected
Color: back mitt
Great for helping me apply lotion to my back.
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Reviewed in the United States on April 8, 2026
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elizduf
Birmingham, US
★★★★★ 5
Just what I needed
Color: back mitt
Easy to use and I didn't experience any streaking. Definitely recommend
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Reviewed in the United States on March 26, 2026
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Buying2much
Lexington, US
★★★★★ 3
Application is not even
Color: back mitt
It does not apply product evenly and absorbs more of the product than I liked. It's soft and large enough for a person of most any size. Hand grips are properly sized for use
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Reviewed in the United States on March 30, 2026
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Tanya Burns Smith
Pawtucket, US
★★★★★ 5
Helps with self tanner application
Color: back mitt
Received quickly and works as expected. Definitely helped me apply self tanner to my back and shoulders!
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Reviewed in the United States on March 6, 2026
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youngpil koh
Omaha, US
★★★★★ 5
Glowing Skin
I’ve been using this PDRN Salmon Egg Serum for a short time, and I’m genuinely impressed. My skin looks noticeably plumper, calmer, and more radiant, almost like it’s been well-rested and deeply nourished from within. The texture is lightweight and silky, absorbs beautifully, and layers perfectly under moisturizer without any stickiness. What stood out most to me was how soothing it felt—my skin looked less stressed and more balanced after just a few uses. Fine lines appeared softer, and my overall complexion had a healthy glow that didn’t rely on makeup. I also love that it delivers visible results without irritation, which is rare for regenerative-style products. It feels like a professional treatment bottled into a daily serum—luxurious, effective, and worth every drop. If you’re looking for a serum that supports skin repair, elasticity, and glow, this one is truly a gem. I’ll definitely be keeping this as a staple in my skincare routine. ✨
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Reviewed in the United States on December 26, 2025

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