Yes, mineral wool or glass wool. I like the cheap yellow glass wool. You could simply buy a few packs and pile them in the corners, you can even leave them in the plastic wrapping.Capoeira wrote:what exectly do mean by "fluffy stuff"? anything like mineral wool? what is the german word?
You'll find some heated discussion on which material is the best. To be honest, the difference is tiny.Capoeira wrote:I will search around in forums here what people use for DIY-basstraps.