I've just ordered a Peavey Millennium AC BXP 5 String and I'm unsure whether I'd have to do anything different to plug my active bass into an amp. I use 2 extremely different amps, I'll give you a brief outline: The first is my old, entry level peavey amp which is a basic as possible. The other is in my friend's dad's home studio where my band practices. This is the one I'm really worried about since it's extremely expensive and I want to put the owner at complete ease when/if I tell him it's safe to be used with an active bass. It's got about 5 effects pedals if that makes any difference. (I do know how lucky I am to have access to all this amazing equipment ) I greatly appreciate any and all input, pun intended.