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<blockquote data-quote="Jeffdachef" data-source="post: 8333308" data-attributes="member: 650438">If it was the ppi phantom or ion series then I would say use the DMM but if an amp is overrated and does 300-400 actual watts, and you set it for 550 watts, you are at clipping bro.You can use audacity to analyze the spectrum of all your music and find out what hz it peaks at and what db level it is. Most bass intensive music is around -6db to 0db(rarely see 0, even decaf is most of the times in the -2 to -3 range) You can then generate a test tone of which amplitude and frequency and set your gains according to your music tastes. The test tone is to get a good ballpark, you can always play with the sub level afterwards and keep things safe.&nbsp; Like shizzon said, eyes, ears, nose and do test runs to see how hot your equipment gets along with monitoring your voltages because you amp will not do its rated power if you are dropping to 13v and being set for the wattage at 14.4V, you&#039;ll be clipping also.PS: I wasn&#039;t trying to be mean earlier i was just making a point that each vehicle and situation will be different. Some vehicles are stronger structurally so you will get a lot less flex(which is good to be honest)&nbsp; Some are flimsy and can vibrate very easily. Cabin gain for every vehicle is different, you&#039;ll have to experiment around to set yours up to be the loudest possible.also you read that in a wrong way. Not saying your setup is sh*T i&#039;m saying it like &quot;get your sh*t together&quot; Sorry i live next to the ghetto bro.</blockquote>

[QUOTE="Jeffdachef, post: 8333308, member: 650438"] If it was the ppi phantom or ion series then I would say use the DMM but if an amp is overrated and does 300-400 actual watts, and you set it for 550 watts, you are at clipping bro. You can use audacity to analyze the spectrum of all your music and find out what hz it peaks at and what db level it is. Most bass intensive music is around -6db to 0db(rarely see 0, even decaf is most of the times in the -2 to -3 range) You can then generate a test tone of which amplitude and frequency and set your gains according to your music tastes. The test tone is to get a good ballpark, you can always play with the sub level afterwards and keep things safe. Like shizzon said, eyes, ears, nose and do test runs to see how hot your equipment gets along with monitoring your voltages because you amp will not do its rated power if you are dropping to 13v and being set for the wattage at 14.4V, you'll be clipping also. PS: I wasn't trying to be mean earlier i was just making a point that each vehicle and situation will be different. Some vehicles are stronger structurally so you will get a lot less flex(which is good to be honest) Some are flimsy and can vibrate very easily. Cabin gain for every vehicle is different, you'll have to experiment around to set yours up to be the loudest possible. also you read that in a wrong way. Not saying your setup is sh*T i'm saying it like "get your sh*t together" Sorry i live next to the ghetto bro. [/QUOTE]

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