I reciently purchased a DA-M10 meter on e-bay to go with my DA-A15C amp, DA-P20 preamp and DA-F20 tuner that I purchased new in 79-80. I have the instruction manuals for the origional components, but not the meter. I attempted to hook it up as I thought it should go between the pre and the amp and was able to get normal sound and the meters moved. I did not have the remote speaker wire connected to the meter as I did not know where it should go.When I tutned the meter off I got a loud SNAP through the speakers. At that point I decided to ask for some help. It doesn't appear that I did any harm to my origional system. Can anyone please explain the correct way to add the meter to my other beloved components. I would also love to get a copy of the meter's instruction manual. I would gladly compinsate for your advice and or manual. Thank you, Mitman