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Car Audio Equipment
Amplifiers
Amplifier -- Sub -- PSU -- Speakers
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<blockquote data-quote="youdoofus" data-source="post: 8667337" data-attributes="member: 664079"><p>I did not understand how to use the dmm in amperage to measure the current on 12v</p><p> joining all the yellow cables I could not distinguish them</p><p></p><p><span style="color: #e74c3c">you dont use a DMM to measure amperage, you use a clamp meter like this <a href="https://www.amazon.com/Fluke-323-True-RMS-Clamp-Meter/dp/B00AQKIEXY/ref=asc_df_B00AQKIEXY/?tag=hyprod-20&amp;linkCode=df0&amp;hvadid=312167987195&amp;hvpos=1o1&amp;hvnetw=g&amp;hvrand=8862005689326562957&amp;hvpone=&amp;hvptwo=&amp;hvqmt=&amp;hvdev=c&amp;hvdvcmdl=&amp;hvlocint=&amp;hvlocphy=9017953&amp;hvtargid=pla-439349889262&amp;psc=1" target="_blank">https://www.amazon.com/Fluke-323-True-RMS-Clamp-Meter/dp/B00AQKIEXY/ref=asc_df_B00AQKIEXY/?tag=hyprod-20&amp;amp;linkCode=df0&amp;amp;hvadid=312167987195&amp;amp;hvpos=1o1&amp;amp;hvnetw=g&amp;amp;hvrand=8862005689326562957&amp;amp;hvpone=&amp;amp;hvptwo=&amp;amp;hvqmt=&amp;amp;hvdev=c&amp;amp;hvdvcmdl=&amp;amp;hvlocint=&amp;amp;hvlocphy=9017953&amp;amp;hvtargid=pla-439349889262&amp;amp;psc=1</a></span></p><p></p><p><span style="color: #e74c3c">this one is pretty expensive, and you can get one for around $25 but for what youre doing, it shouldnt be necessary. Just know that the 14 + 8 amps will equal 22 amps of max output</span></p><p></p><p>if I join the yellow cables of what should be the cable in mm or AWG?</p><p></p><p> What? from where you join them to what youre connecting them to? if thats what youre asking, 8 awg should do it plenty fine</p><p></p><p>on this larger cable the fuse than it should be? since I get 22A</p><p></p><p><span style="color: #e74c3c">fuse it at 20 to be safe, but 25 will very likely be fine as well. id fuse it at 25 personally</span></p><p></p><p>the fuse must be greater than 22A? how much? the diagram of the psu I do not have it</p><p></p><p>the fuse should be at a level that prevents amperage higher than what you want to be thrown at your equipment to be. in this case, it would mainly be to prevent a amperage spike if the PSU goes out and spikes temporarily</p></blockquote><p></p>
[QUOTE="youdoofus, post: 8667337, member: 664079"] I did not understand how to use the dmm in amperage to measure the current on 12v joining all the yellow cables I could not distinguish them [COLOR=#e74c3c]you dont use a DMM to measure amperage, you use a clamp meter like this [URL="https://www.amazon.com/Fluke-323-True-RMS-Clamp-Meter/dp/B00AQKIEXY/ref=asc_df_B00AQKIEXY/?tag=hyprod-20&linkCode=df0&hvadid=312167987195&hvpos=1o1&hvnetw=g&hvrand=8862005689326562957&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9017953&hvtargid=pla-439349889262&psc=1"]https://www.amazon.com/Fluke-323-True-RMS-Clamp-Meter/dp/B00AQKIEXY/ref=asc_df_B00AQKIEXY/?tag=hyprod-20&amp;linkCode=df0&amp;hvadid=312167987195&amp;hvpos=1o1&amp;hvnetw=g&amp;hvrand=8862005689326562957&amp;hvpone=&amp;hvptwo=&amp;hvqmt=&amp;hvdev=c&amp;hvdvcmdl=&amp;hvlocint=&amp;hvlocphy=9017953&amp;hvtargid=pla-439349889262&amp;psc=1[/URL][/COLOR] [COLOR=#e74c3c]this one is pretty expensive, and you can get one for around $25 but for what youre doing, it shouldnt be necessary. Just know that the 14 + 8 amps will equal 22 amps of max output[/COLOR] if I join the yellow cables of what should be the cable in mm or AWG? What? from where you join them to what youre connecting them to? if thats what youre asking, 8 awg should do it plenty fine on this larger cable the fuse than it should be? since I get 22A [COLOR=#e74c3c]fuse it at 20 to be safe, but 25 will very likely be fine as well. id fuse it at 25 personally[/COLOR] the fuse must be greater than 22A? how much? the diagram of the psu I do not have it the fuse should be at a level that prevents amperage higher than what you want to be thrown at your equipment to be. in this case, it would mainly be to prevent a amperage spike if the PSU goes out and spikes temporarily [/QUOTE]
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