SKU: 28756058365
harmonica effects pedal

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

Sale price$20.92 Regular price$23.24
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Description

harmonica effects 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.
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  • Delivery to the USA:
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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: 28756058365

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Jay HQ
Cuba, US
★★★★★ 5
Great Everyday Paper Plates for the Price
Size: 100 Count (Pack of 1)
For around six bucks, getting 100 microwave-safe paper plates like this is a really good deal. Also, they’re actually pretty good quality. They can hold a decent amount of food and they don’t get all soggy or start dripping through the bottom halfway through eating. The soak-proof part is legit. Another thing I liked is the design. The white and green looks simple but nice, and they honestly just look better than a lot of the random cheap paper plates out there. I’ve been using them pretty regularly for quick meals and throwing food in the microwave, and they’ve been really convenient. I will say, if the food is extremely hot, the bottom of the plate does warm up pretty fast since the plates are somewhat thin underneath. Sometimes using two plates instead of one helps with that. Aside from that though, they’ve been excellent. For the amount you get, the quality is genuinely solid and they’ve held up really well for everyday use. Amazon Basics definitely nailed these. 100% would recommend them.
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Reviewed in the United States on May 9, 2026
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GT
Bozeman, US
★★★★★ 4
Worthwhile purchase
Size: 300 Count
Could be a tad more sturdy, maybe higher sides however still recommend; at the price/ quantity, the shear convenience, they burn easily in the firepit, and save on water/soap.
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Reviewed in the United States on May 6, 2026
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Gabby L.
Phoenix, US
★★★★★ 5
Great plates at a great price
Size: 200 Count
They are not heavy duty for a full plate out for simple foods and treats these are great. I have them on subscription and I get more fir the value compared to the stores near me. Perfect for pizza nights when u don't want to do the dishes!
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Reviewed in the United States on April 26, 2026
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sam s.
Birmingham, US
★★★★★ 5
Thank you. They are great.
Size: 100 Count (Pack of 1)
Perfect! Use them all the time. Nice and easy. Works great. Pretty sturdy too :)
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Reviewed in the United States on May 19, 2026
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Aaron harkcom
Fort Morgan, US
★★★★★ 5
Great value and super convenient for everyday use!
Size: 300 Count
exactly what I needed for busy days and quick cleanups. They’re sturdy enough for everyday meals like sandwiches, snacks, and even lighter hot foods without getting soggy or falling apart. I love the convenience of having such a large pack on hand — it lasts a long time and is perfect for families, parties, or meal prep days. The size is just right for most meals, and they stack easily for storage. For the price and quantity, it’s a great deal and saves so much time on dishwashing. Definitely a household staple I keep restocking!
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Reviewed in the United States on May 18, 2026

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