Just installed Audio Control L7i, amp, and jl10w3. .. Hissing through speakers
07-18-2016, 10:09 AM
#1
Senior Member
Thread Starter
Just installed Audio Control L7i, amp, and jl10w3. .. Hissing through speakers
Recently installed the L7i, Kenwood Excelon 5 channel amp, JL 10W3 power wedge box. . Very impressed with sound at mid to high level but when volume is low or sometimes when radio is off but key is on you can hear hissing or static through the speakers. I turned gains down on amp and the issue is still there. Anyone experienced this ? Thank you
07-18-2016, 12:28 PM
#2
Senior Member
Here's a good article on how to track down noise in a stereo install. http://www.crutchfield.com/S-siwmwaO...ion_guide.html
More than likely you have either a poor ground to your amp or there's a cross signal going into your signal cables. From your pic, I can see that you have your RCA running parallel to your power and ground cables. As a general rule, you will want to keep signal cables away from power cables, and if the cables must cross at some point, then it's best to have them cross at 90 degrees from each other.
More than likely you have either a poor ground to your amp or there's a cross signal going into your signal cables. From your pic, I can see that you have your RCA running parallel to your power and ground cables. As a general rule, you will want to keep signal cables away from power cables, and if the cables must cross at some point, then it's best to have them cross at 90 degrees from each other.
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go-on3 (07-18-2016)
07-18-2016, 12:45 PM
#3
Senior Member
Thread Starter
Here's a good article on how to track down noise in a stereo install. http://www.crutchfield.com/S-siwmwaO...ion_guide.html
More than likely you have either a poor ground to your amp or there's a cross signal going into your signal cables. From your pic, I can see that you have your RCA running parallel to your power and ground cables. As a general rule, you will want to keep signal cables away from power cables, and if the cables must cross at some point, then it's best to have them cross at 90 degrees from each other.
More than likely you have either a poor ground to your amp or there's a cross signal going into your signal cables. From your pic, I can see that you have your RCA running parallel to your power and ground cables. As a general rule, you will want to keep signal cables away from power cables, and if the cables must cross at some point, then it's best to have them cross at 90 degrees from each other.
07-18-2016, 03:04 PM
#4
Senior Member
No problem. Yeah, if you have to run the signal cables along with the power, you can get some shielded cables and it will help reduce the noise, but it's best to keep them separate.
03-02-2017, 05:18 AM
#5
Any updates?
Hi,
I just saw your thread. I was wondering if you fixed the issue with your truck? I installed the LC7i along with 2 alpine amps and a 10" sub. I also get the same hissing sound at low volumes. The audio sounds great. But it just bugs me that the hissing is there.
So, i was wondering if you had fixed it and if so, how did you fix the issue?
Thanks.
I just saw your thread. I was wondering if you fixed the issue with your truck? I installed the LC7i along with 2 alpine amps and a 10" sub. I also get the same hissing sound at low volumes. The audio sounds great. But it just bugs me that the hissing is there.
So, i was wondering if you had fixed it and if so, how did you fix the issue?
Thanks.
03-02-2017, 08:31 AM
#6
Mass Effect
Try adjusting the gain and the levels of the LCi7. A speaker level input has a ton of noise and it usually gets transferred into the RCA signal as hiss. Best way to combat this is with a powerful amp and low gain settings. Tinker with those settings and see what you can improve. The lower the amp's gain, the less hiss you're going to have so you'll need to do some experimenting to get the levels matched right between the amp's gain and the LCi7's output levels.
03-06-2017, 12:00 PM
#7
Try adjusting the gain and the levels of the LCi7. A speaker level input has a ton of noise and it usually gets transferred into the RCA signal as hiss. Best way to combat this is with a powerful amp and low gain settings. Tinker with those settings and see what you can improve. The lower the amp's gain, the less hiss you're going to have so you'll need to do some experimenting to get the levels matched right between the amp's gain and the LCi7's output levels.
