All active amps will work with the Bushmaster. It's the passive ones that could cause a problem. In an active amplifier the design already caters for an AC signal, with or without a DC component, to the volume control. It's a design rule. So there are no problems with operating the Bushmaster with your amp if you need to plug your amp into the mains before it will work.
But if you have a stand alone volume control pot or passive preamp, it is more than likely not to work properly with the Bushmaster.