Since Brent is a very busy fella and has quite a bit on his plate I thought I would help you out....give these guys a call [Link: usa.denon.com] and then maybe try [Link: dpllabs.com] that should get you in touch with the right people.
What part of "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed." do you not understand?