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<blockquote data-quote="snidly" data-source="post: 8890996" data-attributes="member: 680985">Basics - I installed a Kenwood DNX 577S head unit with Polk front and rear door speakers and a JL Audio 450/4 to power them. I also have 2 SKAR SVR 12D4 subs wired parallel / parallel going to a JL Audio RD 1500.1. I have a 350 amp alternator , done the big 3.&nbsp; Installed in a 07 Hummer H2. &nbsp;The sub amp would turn off at 1/4 volume and the subs never sounded good. I checked the subs with a meter and the final ohms between .8 and 1.0.&nbsp; I forgot , I installed a Audio control Epicenter , In Dash , the same time as everything else. So after getting frustrated , I removed the Epicenter then the subs wouldnt play at all and the JL RD sub amp wouldnt turn on. I ended up removing the subs and amp and installed Power Acoustic BAMF 124 , again wired in parallel / parallel to a Arc Audio 2500.1 and it powered up 1 time and that was it. I checked ground and it was not a good ground , I looked for a good ground and couldnt find one , looked on line and because of way H2&#039;s are made , grounding must be to frame not body , so I used battery ground , again worked 1 time and now Arc Audio amp wont turn on. I checked final Ohm load 1.2 ohms . I replaced all RCA cables and ran the turn wire to the Arc Audio and then to the JL 4 channel amp . JL turns on so wire must be good. Why cant I get subs to work ? The JL RD 1500 was brand new and the Arc Audio I just got back from being serviced at Arc Audio. The power wire from Battery to Dist Block is 1/0 , fused at Battery , same with the ground. Battery is a new Yellow top .&nbsp; I am sorry such a long read, thank you in advance for any help.</blockquote>

[QUOTE="snidly, post: 8890996, member: 680985"] Basics - I installed a Kenwood DNX 577S head unit with Polk front and rear door speakers and a JL Audio 450/4 to power them. I also have 2 SKAR SVR 12D4 subs wired parallel / parallel going to a JL Audio RD 1500.1. I have a 350 amp alternator , done the big 3. Installed in a 07 Hummer H2. The sub amp would turn off at 1/4 volume and the subs never sounded good. I checked the subs with a meter and the final ohms between .8 and 1.0. I forgot , I installed a Audio control Epicenter , In Dash , the same time as everything else. So after getting frustrated , I removed the Epicenter then the subs wouldnt play at all and the JL RD sub amp wouldnt turn on. I ended up removing the subs and amp and installed Power Acoustic BAMF 124 , again wired in parallel / parallel to a Arc Audio 2500.1 and it powered up 1 time and that was it. I checked ground and it was not a good ground , I looked for a good ground and couldnt find one , looked on line and because of way H2's are made , grounding must be to frame not body , so I used battery ground , again worked 1 time and now Arc Audio amp wont turn on. I checked final Ohm load 1.2 ohms . I replaced all RCA cables and ran the turn wire to the Arc Audio and then to the JL 4 channel amp . JL turns on so wire must be good. Why cant I get subs to work ? The JL RD 1500 was brand new and the Arc Audio I just got back from being serviced at Arc Audio. The power wire from Battery to Dist Block is 1/0 , fused at Battery , same with the ground. Battery is a new Yellow top . I am sorry such a long read, thank you in advance for any help. [/QUOTE]

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