Hi Brian, I have had a lot of comments from Boy Scout leaders about this device. I haven't had time recently to pursue it further. We have even considered using two for 8 outputs. http://www.pituch.net/p/Steve's%20Page/Radio/Audio%20Breakout%20Box/Audio%20Breakout%20Box.htm or drill down from www.pituch.net Regards, Steve, W2MY