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<blockquote data-quote="helotaxi" data-source="post: 338090" data-attributes="member: 550915"><p>Do you mean the crossover on the sub output?&nbsp; Set the crossover a bit higher if you just want to bump.&nbsp; Also, try setting the sub crossover to FLAT on the h/u and using the amp crossover instead.&nbsp; Also IIRC the sub level on the 9813 (I have one but I haven&#039;t gotten my amps installed yet so I haven&#039;t played with the sub section yet) goes from 0dB to -15dB, meaning that the smaller the number the higher the relative volume of the subs.&nbsp; It just seems to me that you are trying to get more out of your setup than it is able to give you.&nbsp; By adding all that boost from the MX you are causing&nbsp; the output to clip sooner than it would normally and effectively sending the amp a square wave to try to reproduce.&nbsp; It tries, but it draws a ton of current doing so and blows the fuse.&nbsp; You are lucky that you haven&#039;t toasted on of the subs yet.&nbsp; Also remember that the gain is a level matching device and not a volume control.&nbsp; It&#039;s not something you should be adjusting once it is set.&nbsp; Get everything set CORRECTLY.&nbsp; Get help if you need it.&nbsp; If you still aren&#039;t getting what you want, you need either bigger subs or a second amp.&nbsp; If you run a bigger fuse than the 50 amp recommended by JL you are setting yourself up to cook something.&nbsp; The fact that you are blowing the fuse regularly to begin with should tell you something isn&#039;t right with your setup.</p></blockquote><p></p>

[QUOTE="helotaxi, post: 338090, member: 550915"] Do you mean the crossover on the sub output? Set the crossover a bit higher if you just want to bump. Also, try setting the sub crossover to FLAT on the h/u and using the amp crossover instead. Also IIRC the sub level on the 9813 (I have one but I haven't gotten my amps installed yet so I haven't played with the sub section yet) goes from 0dB to -15dB, meaning that the smaller the number the higher the relative volume of the subs. It just seems to me that you are trying to get more out of your setup than it is able to give you. By adding all that boost from the MX you are causing the output to clip sooner than it would normally and effectively sending the amp a square wave to try to reproduce. It tries, but it draws a ton of current doing so and blows the fuse. You are lucky that you haven't toasted on of the subs yet. Also remember that the gain is a level matching device and not a volume control. It's not something you should be adjusting once it is set. Get everything set CORRECTLY. Get help if you need it. If you still aren't getting what you want, you need either bigger subs or a second amp. If you run a bigger fuse than the 50 amp recommended by JL you are setting yourself up to cook something. The fact that you are blowing the fuse regularly to begin with should tell you something isn't right with your setup. [/QUOTE]

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