How to Remove Fizz and Harmonic Feedback from Amp Sims

  • Blog
  • September 22, 2022

If you’re having trouble with fizz and harmonic feedback from your amp sims, there are a few things you can do to remove it. By using a high-pass filter, removing lower frequencies, and using a noise gate, you can get rid of that pesky feedback.

How to Remove Fizz and Harmonic Feedback from Amp Sims

What is fizz and harmonic feedback?

Fizz and harmonic feedback are both types of distortion that can occur when using amp simulators. Fizz is typically caused by clipping, while harmonic feedback can be caused by both clipping and overdrive. Both types of distortion can be prevented by using a more conservative setting on the amp simulator.

Why do amp sims get fizz and harmonic feedback?

Amp sims can get fizz and harmonic feedback for a number of reasons. One reason is simply because they are amplifiers, and all amplifiers are susceptible to feedback. Another reason is that amp sims often have a lot of gain, which can also lead to feedback. And finally, some amp sims are designed in such a way that they are more prone to feedback than others.

There are a few things you can do to help reduce or eliminate fizz and harmonic feedback from your amp sims. One is to simply turn down the gain. This will help to reduce the overall level of feedback. Another is to use a noise gate. This will help to cut off any unwanted noise that might be causing the feedback. And finally, you can try using a different amp sim. Some amp sims are designed to be more resistant to feedback than others.

How to remove fizz and harmonic feedback from amp sims

When it comes to digital amp sims, one of the most common complaints is that they can sound harsh and fizzy. This is especially true when you push them hard with high gain settings. While there are a number of ways to deal with this problem, one of the most effective is to use a low pass filter.

A low pass filter is a very simple tool that allows you to remove high frequencies from a signal. This is exactly what you need to do to get rid of the fizz and harmonic feedback from your amp sims. By cutting off the high frequencies, you can greatly improve the overall tone of your sims.

There are a few different ways to implement a low pass filter. One of the simplest is to use a standard EQ plugin. Most EQ plugins will have a low pass filter built in. Simply insert the EQ plugin on your amp sim track and adjust the cutoff frequency until the fizz is gone.

Another option is to use a dedicated low pass filter plugin. There are a number of these available, both free and paid. While they may not have the same features as a standard EQ plugin, they will get the job done when it comes to removing fizz from your amp sims.

Once you have a low pass filter in place, you can experiment with the cutoff frequency to find the sweet spot for your particular sound. As a general rule of thumb, you want to keep the cutoff frequency fairly low, around 200 Hz or so. But ultimately, it all comes down to personal preference. So don’t be afraid to experiment and find what sounds best to you.


There are many ways to remove fizz and harmonic feedback from amp sims. The most important thing is to find the right method for your individual needs. Experiment with different techniques and see what works best for you. With a little patience and effort, you can achieve great results.

How to Remove Fizz and Harmonic Feedback from Amp Sims

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