I just got a new Soundstream Rubicon 2500. I got everything installed today in my car but am having problems with the output voltage to the subs when setting the gain. I am trying to set the voltage to 50volts, as I am using 2500 watts at 1ohm. I have already tested and verified that the amp is getting power, 12.5V when the car is off and 14.35 when it is on.
However I seem to have two issues. First, I have a Pioneer DEH-P5000UB headunit. It is suppose to have 4V pre amp outputs. The Rubicon has two pre amp voltage settings, .1-2V and 2V-8V. Now since my head unit is suppose to be 4V I set it to 2V-8V. However when I was setting my gain using a 0db 50HZ tone, my voltage to the subs was only 5-9V!?!?! This was with the gain knob maxed out!! So then for the heck of it, I changed my setting on the amp to .1-2V. This seemed to help a lot. Although the gain knob was still maxed out, I was now seeing ~40V on my DMM.
But this still can't be right and I want to know whats wrong. The gain knob is maxed right now, and the most I'm seeing voltage wise to the speakers is 40V, 10V's short of what I need? I had a Memphis PR.1000 hooked up before this which worked 100% fine and saw the correct voltage. The only difference was the grounding location and I used a slightly thicker remote lead cable. The rubicon is sharing a ground with my component amp at this moment and during the testing. The components and their amp seem just fine so I'm not sure if it's the ground. The only thing I can think of is maybe the remote lead cable? Any ideas?