SKU: 33402449231
hf-816 pedal

hf-816 pedal On Sale* Harp Rod PI Effects Harmonica Pedal. Feedback P.I. Pedal. In – RockinRonsMusic

Sale price$19.24 Regular price$21.38
Save 10%

Pay in installments of $5.34 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 6 - Sep 11

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

hf-816 pedal On Sale* Harp Rod PI Effects Harmonica Pedal. Feedback P.I. Pedal. In – RockinRonsMusicFeedback 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.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 33402449231

Discover Niche Categories That Outsell hf-816 pedal

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 7 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
E
Verified Purchase
Eve Nuckels
Houston, US
★★★★★ 5
Super cute, but wrong colors!!
Size: Pack of 3, Color: Small/Med Bone
Very cute!! The squeak is quite loud, but it's still nice to use. I will say, I did get the wrong colors...The colors on the listing are purple, pink, and green, but I got red and yellow instead.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
A
Verified Purchase
Alan Parker
Grantham, US
★★★★★ 5
dogs love them
Size: Pack of 3, Color: Small/Med Bone
hold up well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
L
Verified Purchase
LO
Lexington, US
★★★★★ 4
is really squeaky and small
Size: Pack of 3, Color: Small/Med Bone, Size: Pack of 3, Color: Small/Med Bone
my dog loves his new toy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 13, 2026
M
Verified Purchase
Mona
Houston, US
★★★★★ 5
He can’t eat these very easy
Size: Pack of 3, Color: Small/Med Bone
My dog loves these bones
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
L
Verified Purchase
LoriBeth
Waukegan, US
★★★★★ 5
Great enrichment
Size: 2.8in for Small & Medium Dogs
These are great for our 3 dogs, they’re durable and strong. The pup ford training treats fit great into these and it takes our dogs a good bit to get all the treats out. Easy to clean and a great enrichment toy, will buy again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2026

recommand products