Hi, Olaf. Sorry I can't answer your question for you, but your thread has raised a question you might be able to answer for me. I'm used to using the IBU boards, and with those they have the engine and gun sounds on two separate channels, so if you have the TPA amp you have separate volume control right there for engine and gun sounds. You can increase or decrease the volume for engine and guns independently, just by turning the appropriate knob. It sounds like the TK60 does not have such a feature? How many different speakers can you plug into a TK60? Do they offer an amp that might incorporate the two channel feature, like the TPA for the IBU? I've been considering giving the TK60 a try, so this will be a real factor for me. I've had great luck with the IBU so if the TK60 offers less options for sounds then maybe I won't try it after all. Thanks in advance for your help with this, Olaf. Anyone that helps me increase my RC education is Aces with me.

Gary