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<blockquote data-quote="Jeffy" data-source="post: 8498704" data-attributes="member: 669816">I need some serious help, I&#039;ve researched for countless hours and I&#039;m about to lose my freaking mind. No matter what I do, I can&#039;t get rid of a high frequency crackle/ distortion, and I keep blowing speakers. I bought the car a month ago and entirely replaced the stereo system, including running new wires for the speakers.I&#039;m running (2) Rockford Fosgate T1692 and (2) Fosgate T1675 from a PDX-V9, and (2) Fosgate T1675 and a JL 12W6 off another PDX-V9.&nbsp; I have a Pumpkin Auto head unit (Chinese knockoff, but sounded amazing for a while- read on).&nbsp; I had (2) JL C2-350x dash speakers running from this head unit. I tuned the amps properly with a multimeter.I initially installed everything, and after working out the kinks it sounded beautiful. A few days later I was driving on the freeway with the windows down so I cranked it up. Later that night I started noticing issues.&nbsp; I somehow blew the tweeters in the dash speakers, even though they&#039;re rated for 75w peak and my head unit is only rated for 50w peak (verified blown with multimeter). Ok, bummer.&nbsp; I ordered a pair of JL C5075-CT tweeters to replace them.&nbsp; However when I got the tweeters and went to install them, they sound horrible at all volumes. The distortion is so bad during vocals that I can&#039;t understand the words, and that&#039;s with the volume at only 15-25%.&nbsp; I tried connecting them to the amp instead but same result... There&#039;s no way 2 brand new speakers from a good company are both bad.So I ripped out my head unit wiring, re-soldered everything and ran a new ground.&nbsp; No good. ALL of the Rockford Fosgate speakers running from my amps have distortion/ crackling at high frequencies too.&nbsp; I tried isolating speakers, but they all sound bad even when they&#039;re the only one connected.WHAT IS GOING ON???</blockquote>

[QUOTE="Jeffy, post: 8498704, member: 669816"] I need some serious help, I've researched for countless hours and I'm about to lose my freaking mind. No matter what I do, I can't get rid of a high frequency crackle/ distortion, and I keep blowing speakers. I bought the car a month ago and entirely replaced the stereo system, including running new wires for the speakers. I'm running (2) Rockford Fosgate T1692 and (2) Fosgate T1675 from a PDX-V9, and (2) Fosgate T1675 and a JL 12W6 off another PDX-V9. I have a Pumpkin Auto head unit (Chinese knockoff, but sounded amazing for a while- read on). I had (2) JL C2-350x dash speakers running from this head unit. I tuned the amps properly with a multimeter. I initially installed everything, and after working out the kinks it sounded beautiful. A few days later I was driving on the freeway with the windows down so I cranked it up. Later that night I started noticing issues. I somehow blew the tweeters in the dash speakers, even though they're rated for 75w peak and my head unit is only rated for 50w peak (verified blown with multimeter). Ok, bummer. I ordered a pair of JL C5075-CT tweeters to replace them. However when I got the tweeters and went to install them, they sound horrible at all volumes. The distortion is so bad during vocals that I can't understand the words, and that's with the volume at only 15-25%. I tried connecting them to the amp instead but same result... There's no way 2 brand new speakers from a good company are both bad. So I ripped out my head unit wiring, re-soldered everything and ran a new ground. No good. ALL of the Rockford Fosgate speakers running from my amps have distortion/ crackling at high frequencies too. I tried isolating speakers, but they all sound bad even when they're the only one connected. WHAT IS GOING ON??? [/QUOTE]

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