Tried using the PF 60 to turn on the 7075. I guess my house wiring is a little different from yours. It kind of turned on "hard" instead of "soft" when using the 12 volt trigger. No damage though. Thank you for the suggestion. I emailed ATI and "Mike" replied indicating that all ATI amps only need 5 Ma to turn on. I then phoned Outlaw (today) and they said the 970 puts out 50 Ma, more than enough to "trigger" two external sources like amps.