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Message: <blockquote data-quote="Digital Designs" data-source="post: 7343950" data-attributes="member: 603261">Buy or borrow a digital multimeter. You can get cheapo ones for like 15 bucks at Walmart. Unhook your sub from your amp and turn off ALL bass boost/EQ settings. Download a 50hz tone(google for one, I think ROE has one?). Turn your gain all the way down on the amp. Play the 50hz tone with your volume on your H/U at the loudest listening level you will use and on repeat with the DMM hooked up to your amps speaker terminals. The DMM should be on AC volts. Use this formula to find what kinda wattage your amp is putting out. Voltage = Square Root(Wattage desired X Resistance used) This means You have to multiply your desired wattage by whatever ohm load you want that wattage at, and find the square root of that number. After you do that, you will be turning up your gain until your DMM tells you that voltage while playing the test tone. I hope this makes some sense, lol. I have had a few drinks and probably left something out.EDIT: I will simplify this a bit for you. What kinda power are you trying to get from your amp? They are rated at 1200 RMS right? I will just use that. What you have to do to find what voltage you want on the DMM is multiply that 1200w by the resistance you will be at(1 ohm, because a dual 2 ohm sub wired in parallel is 1 ohm) So you multiply 1200 by 1 and get 1200 obviously. Now you have to find the square root of 1200 which is around 34.6. Hook up your DMM like I said above and raise the gain til the DMM says about 34.5 volts roughly. That is a more proper way of setting your amp, although it isnt always the best way.</blockquote>

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