Harley Benton Feedback Buster 88mm

Used this with my LAG acoustic guitar and fits perfectly, killing feedback as it was supposed to do.

It does not fit the smaller sound hole of Harley Benton Kahuna CLU-Bass but you can carefully shave off from around the mute using a craft knife to fit it, without cutting the top lip so it won't fall off. With this, I no longer have feedback issues in high volume environments. Acoustic volume is less as expected, but the output sounds a bit more focused with this installed, which I find is a positive for most acoustic instruments.

Used as base for mounting Fishman active pickups to soundhole. And that worked. Cannot say anything about normal functionality

I purchased this for a Tanglewood TW2 TSE travel guitar and unfortunately it was a little bit too small. I added some electrical tape to increase the circumference of the soundhole cover and it now fits perfectly.

The cover itself is decently made and seems durable.

This is the second feedback buster I bought, as the first one I bought was too big.
Well, this one was too small, but through no fault of Thomann. It ends up the hole on my acoustic electric bass is an odd size.

The item itself is well made. The rubber is of good quality, and should last for many years.

Perfect for cutting feedback. Used it with a Yamaha guitar.

Product is ok but is not suitable for my Fender Kingman Bass v2 , will be given as gift to fellow guitarist

Fits perfectly, stops all feedback. Will never harm your instrument.