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Need 5-channel amp recommendation

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Old 10-19-2017, 11:02 AM   #51
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I got out there tonight and reintegrated my LC6i and the Alpine PDX-V9. It works. A little too well, maybe. The Fosgate had 500w reserved for the subs in a left and right channel that could not be bridged. the Alpine puts all that power into a single channel. I have not tuned it yet but I get a heavy pop when I turn my stereo on and off. The doors sound great but the JL sub sounds like it is getting a lot of power. By the time I get my volume up to 5 or 6 its hitting really hard, maybe too much. I am guessing the tune will fix that and the popping noise from powering on and off? I still have people sleeping here so I can't tune it yet.
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Old 10-19-2017, 11:40 AM   #52
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Originally Posted by Kommander View Post
I got out there tonight and reintegrated my LC6i and the Alpine PDX-V9. It works. A little too well, maybe. The Fosgate had 500w reserved for the subs in a left and right channel that could not be bridged. the Alpine puts all that power into a single channel. I have not tuned it yet but I get a heavy pop when I turn my stereo on and off. The doors sound great but the JL sub sounds like it is getting a lot of power. By the time I get my volume up to 5 or 6 its hitting really hard, maybe too much. I am guessing the tune will fix that and the popping noise from powering on and off? I still have people sleeping here so I can't tune it yet.
Sounds like your gains are not set right since it sounds like your subs are maxing out at low in put volume.
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Old 10-19-2017, 06:47 PM   #53
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Originally Posted by Kommander View Post
I got out there tonight and reintegrated my LC6i and the Alpine PDX-V9. It works. A little too well, maybe. The Fosgate had 500w reserved for the subs in a left and right channel that could not be bridged. the Alpine puts all that power into a single channel. I have not tuned it yet but I get a heavy pop when I turn my stereo on and off. The doors sound great but the JL sub sounds like it is getting a lot of power. By the time I get my volume up to 5 or 6 its hitting really hard, maybe too much. I am guessing the tune will fix that and the popping noise from powering on and off? I still have people sleeping here so I can't tune it yet.
First: DO NOT push the system at all until the gains are set correctly. It's very easy to blow a speaker.

As for the pop, that could be the gains being set way too high, an issue with noise in the DC power when the system is powered up, or the amp not having a "soft turn-on" or delay circuit. There are external circuits you can add, but with an Alpine amp, you shouldn't need one. (It should have one built in.) Now the Pyramids we had....

.

Last edited by OhioLariat; 10-19-2017 at 07:39 PM.
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Old 10-20-2017, 11:17 AM   #54
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lol. I would almost find an old pyramid to see how it stacks up. Hahaha!!

A few updates. First, I have to confess I am lazy by nature. In my laziness I decided to just put the Fosgate back in since it was already tuned and sell the Alpine. I installed it, made sure all the settings were unchanged and powered up. Everything came on. Great.

Then I turned up the volume to 3. Everything went off. I tried taking the key out and then putting it back in but no dice. So, I started the truck and when I did the LED on the RF was red, yellow and flickering blue all at once. The Input Clipping was flashing too. No sound. I disconnected all the inputs and no change.

So I turned everything off, started the truck again and the LED went blue. I turned on the radio with the volume set at 1 and turned everything down to minimums, including the LC6i. I put the test track CD in and played track 7 like I did in the beginning. I adjusted my output on the LC6i and the maximize light flickered exactly when it was supposed to. So, I turned everything off and reconnected the amp and turned the LC6i settings back down to 0. I turned everything on, amp light is blue. So I turned the volume to 2 and everything played fine. As soon as I raised any of the controls on the LC6i even the slightest, the maximized light would flicker which is not normal. I turned the settings back down and turned the volume to 3 and it all died again.

At this point I checked the ground again, fool me once, right? No dice. Still good. So now I am running out of time and need to get wrapped up and get ready for bed since I work tonight. Knowing I would be driving in silence I connected the Alpine back up, set my LC6i back to its normal settings and powered up. Same as before I put the Fosgate back in, pop, then good doors and overloaded sub. I spent a few minutes and turned the gain way down on the sub channel just to get some tunes out of it for tonight. No more pop when powering on and off and it sounds much better, but not perfect. Still needs the rest done but I did not get a chance to work on it until this morning. But, it goes past 3 now. I have had it about half way and the sub is handling it like a charm but you can tell its got much more to give. I will keep it that way so I don't blow it before I can get it tuned.

Last edited by Kommander; 10-20-2017 at 11:20 AM.
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Old 10-20-2017, 01:18 PM   #55
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https://www.reddit.com/r/CarAV/comme..._gain/c4xbmcv/ It's not perfect, but this will get you started setting gain and getting the most out of your stuff.
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Old 10-21-2017, 02:31 AM   #56
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I don't know what it is with these F150 harnesses but they're garbage. I went thru 3 harnesses, and then gave up and put the halogens back in. Crappy halogens were better than not knowing if the HID's were going to turn on or not. I have since gotten rid of the F150, but did a full retrofit on my other car and no issues at all... just something with that harness.
I have been in an email back and forth with TRS. They RMA'd 2 of mine, finally. I bought two more so I should end up with the good one in my truck now and 4 new ones. I will definitley try them out when they get here since one of my brand new ones was DOA. How can you make such a crappy relay is what I want to know. I mean, I love my lights but at this point its a crap shoot if they will work when I turn them on. And it is always the relay. Maybe I will open one and try to see what they are doing wrong.
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