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<blockquote data-quote="RemlapaN" data-source="post: 848697" data-attributes="member: 555746">ok, i did the whole search thing, read some stuff on bcae, and its all making sense. However, a few questions:I have a small handheld scope, which i plan on using to set amp gains.&nbsp; I found the clip point of the HU (playing sine waves and watching the scope).The amp i am using is a 4ch amp, 2ch&#039;s for mid-range, 2chs bridged for a pair of 10&quot; subs.&nbsp; THe scope im using says it can calculate watts if you tell it the impedance, so i did this.&nbsp; It has two settings for RMS Watts: AC, or AC+DC.&nbsp; Which should I use?&nbsp; AC always seems to read kinda low, AC+DC always seems to read kinda high.Basically, the amp can do 800wRMS (or so it claims) at 2ohms, but my subs only handle 150wRMS each, so i need to set my gains to keep it near 300wRMS @ 4ohms (since the subs are wired in parallel).Is it as simple as playing a 50Hz tone, and setting the gains to 34.64volts? ( sqrt( 4ohms * 300watts) )</blockquote>

[QUOTE="RemlapaN, post: 848697, member: 555746"] ok, i did the whole search thing, read some stuff on bcae, and its all making sense. However, a few questions: I have a small handheld scope, which i plan on using to set amp gains. I found the clip point of the HU (playing sine waves and watching the scope). The amp i am using is a 4ch amp, 2ch's for mid-range, 2chs bridged for a pair of 10" subs. THe scope im using says it can calculate watts if you tell it the impedance, so i did this. It has two settings for RMS Watts: AC, or AC+DC. Which should I use? AC always seems to read kinda low, AC+DC always seems to read kinda high. Basically, the amp can do 800wRMS (or so it claims) at 2ohms, but my subs only handle 150wRMS each, so i need to set my gains to keep it near 300wRMS @ 4ohms (since the subs are wired in parallel). Is it as simple as playing a 50Hz tone, and setting the gains to 34.64volts? ( sqrt( 4ohms * 300watts) ) [/QUOTE]

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