I sometimes like to mod my amps exterior if I find something I don't like, or find something for it I do like. For the Zero, I found this replacement knob:

I purchased it from one of HeadFi's sponsors, Parts conneXion. It is a 26mm matte silver (just like the face on the Zero) and has a 6mm shaft diameter. So, if you get your Zero and the stock knob turns you off, just replace it with a nice one.
