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<blockquote data-quote="JessyBoy86" data-source="post: 8527663" data-attributes="member: 671058">I&#039;d like to know if i can simply use Math to figure the input sensitivity setting i need on a amp according the max Voltage of a DSP.I&#039;m just trying to get in the ballpark with that....i know i must keep monitoring the system and use a multimeter but,Say my DSP gives 2V max. Input sensitivity on the amp goes from 5V to 200mV.Sub is 1000w rms at 1 ohmAmp gives 2250w rms at 1 ohmWith the equation V=rootsquare(1000*1)&nbsp; i figure that i need around 32V at the output of the amp.With the same equation, the max Voltage on the amp for 2250w at 1 ohm is around 47V.If i set the sensitivity to 5V, with the Gain equation Gain= Vmax/sensitivity....i have a gain of around 9.5.So, with 2V input times 9.5 i would get 19V.Since i need around 32V, i figured i&#039;d have to set the input sensitivity around 3 to get a gain of 15.8.Am i right or completely off the map ??Say the DSP gives 5V max and i keep the same amp. With 5V in on the amp and sensitivity at 5V, i would get 2250w, wich is too much for my sub. In this case, do i have to lower the channel output level of the DSP, or adjust the sensitivity of the amp using a lower master level on the HU ?</blockquote>

[QUOTE="JessyBoy86, post: 8527663, member: 671058"] I'd like to know if i can simply use Math to figure the input sensitivity setting i need on a amp according the max Voltage of a DSP. I'm just trying to get in the ballpark with that....i know i must keep monitoring the system and use a multimeter but, Say my DSP gives 2V max. Input sensitivity on the amp goes from 5V to 200mV. Sub is 1000w rms at 1 ohm Amp gives 2250w rms at 1 ohm With the equation V=rootsquare(1000*1) i figure that i need around 32V at the output of the amp. With the same equation, the max Voltage on the amp for 2250w at 1 ohm is around 47V. If i set the sensitivity to 5V, with the Gain equation Gain= Vmax/sensitivity....i have a gain of around 9.5. So, with 2V input times 9.5 i would get 19V. Since i need around 32V, i figured i'd have to set the input sensitivity around 3 to get a gain of 15.8. Am i right or completely off the map ?? Say the DSP gives 5V max and i keep the same amp. With 5V in on the amp and sensitivity at 5V, i would get 2250w, wich is too much for my sub. In this case, do i have to lower the channel output level of the DSP, or adjust the sensitivity of the amp using a lower master level on the HU ? [/QUOTE]

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