I'm gonna ask this question because I want either an opinion or actual knowledge from experience... I know this is gonna open the proverbial can of worms and the opinions will vary. For the record, yes I am talking about overdriving the ever-loving-dog-snot out of it too, with a Magnum S9. So... how much average and PEP power should one of those put out if everything is in working order? I've ran across one in a pile of "junk" that I've recently acquired and I don't have a lot of experience with 2x4's. I personally prefer a straight 2 or a straight 4, so here we go... It appears to be a "stock" amp, nothing has been changed and it has 2 red dot 2290's driving 4 red dot 2879's. I know you need to know what the output of the radio is, this will also open a can of worms but let's try to just look past the whole radio issue and focus on the amp itself (if possible). My testing radio is a Magnum S9 with dual 1969's, the PEP swing of this radio is in the neighborhood of 55 watts. The radio has had a full alignment to factory spec or as close to it as possible anyway. Now, what I'm seeing is about 600 watts average and 1200 watts peak, ran at 14.5 volts off a Cosel power supply, the 125 amp version. The radio is being ran at 14.2 volts and the supply is a 30 amp Astron unit. Neither supply is dropping voltage while being pulled on, not according to the volt meters connected to each unit. I'm unsure of the amperage being drawn, especially off the amp supply, I don't have that option at the moment. So... does this sound about right or should it be more? I kinda feel like it should be a little more but then again... eh... maybe it's right? And yes, I know I'm technically overdriving it and all that goes along with that, I get it... I understand. But it's what's sitting in the shop at the moment and it's what I'm testing with. I'm thinking of gutting it and using the parts for smaller builds, I have no use for a 2x4.