You could also consider attenuation at the other end:Honestly, I‘ve almost pulled the trigger on this amp a couple of times. My only reservation is that I’d have to spend another couple hundred bucks on a good attenuator to make it crackle at a level that doesn’t harm my hearing

Custom Musicians Earplugs with Attenuator - Etymotic
Reduces sound levels evenly so that music and speech are clear and natural. Lets musicians hear their own instrument and their blend with others while protecting from damaging levels of exposure. Enhances the music experience for audiences while protecting hearing. *All Musicians Earplugs ship...

I use the 15 dB ones for band practice.