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<blockquote data-quote="i2ain2thunder" data-source="post: 8124262" data-attributes="member: 631331">Hello.&nbsp; I&#039;ve had some electrical issues with my setup forever.&nbsp; The voltage does drop slightly below 12.6v which seems to cause my amp to clip.&nbsp; Obviously due to this I keep gain low and don&#039;t clip.&nbsp; However with a HO alt, 1/0 recleaned and sealed connections, optima yellow top, I don&#039;t think my 1200watt amp should be clipping at around 750watts on that kind of power.One thing I&#039;ve never done is test my resistance.&nbsp; I know the resistance of coils isn&#039;t ever exactly as stated I.E. dual 4 ohm vcs are probally around 3.6 or so per coil from my experience.&nbsp; However I&#039;m kinda new to actually testing my resistance levels with a DMM.What setting do I use on the DMM?&nbsp; Can I measure the resistance from the wires or at the amp, or do I need to check them at the coils?&nbsp; I want to make sure that everything I have wired is legit.&nbsp; I wired my 2x dual 4ohm subs in parallel, but they are not wired directly to eachother.&nbsp; I have 1 sub wired + to + / - to - and the other wired the same way.&nbsp; Then on each sub I have a lead going from + to + on the amp and - to - on the amp.&nbsp; It is a mono amp, but has those 4 terminals, kind of like a 2 channel, but obviously that is a combined 1 channel, so I should be good to wire each sub to a respective + and - and the ohm load should be 1ohm at the amp in theory right?The speakers are all 4ohm components wired to a 4channel amp, no series or parallel, just wired to 4ohms at the amp on each channel.</blockquote>

[QUOTE="i2ain2thunder, post: 8124262, member: 631331"] Hello. I've had some electrical issues with my setup forever. The voltage does drop slightly below 12.6v which seems to cause my amp to clip. Obviously due to this I keep gain low and don't clip. However with a HO alt, 1/0 recleaned and sealed connections, optima yellow top, I don't think my 1200watt amp should be clipping at around 750watts on that kind of power. One thing I've never done is test my resistance. I know the resistance of coils isn't ever exactly as stated I.E. dual 4 ohm vcs are probally around 3.6 or so per coil from my experience. However I'm kinda new to actually testing my resistance levels with a DMM. What setting do I use on the DMM? Can I measure the resistance from the wires or at the amp, or do I need to check them at the coils? I want to make sure that everything I have wired is legit. I wired my 2x dual 4ohm subs in parallel, but they are not wired directly to eachother. I have 1 sub wired + to + / - to - and the other wired the same way. Then on each sub I have a lead going from + to + on the amp and - to - on the amp. It is a mono amp, but has those 4 terminals, kind of like a 2 channel, but obviously that is a combined 1 channel, so I should be good to wire each sub to a respective + and - and the ohm load should be 1ohm at the amp in theory right? The speakers are all 4ohm components wired to a 4channel amp, no series or parallel, just wired to 4ohms at the amp on each channel. [/QUOTE]

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