#10078, "RE: anyone familiar with old PPI???" In response to In response to 2
Be careful, if you're talking about the OLD ppi amps if it doesn't have a diagram on the side or back for bridging then don't do it. It used to be you had to buy an amp with bridging as an option. And that's back when PPI was hot.
I had 2 ppi amps back in the day and neither were bridgeable, but that's when bridging was a new thing.