Amp turn-on delay, any ideas?
02-05-2008, 05:38 PM
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Amp turn-on delay, any ideas? I recently installed a complete stereo system in my 99 TA and it worked great for a few weeks, but lately it is giving me trouble. Let me start by describing my components, and then I will describe the problem. I have a pioneer deck, MB Quart components, a JL 450/4 amp for the MB's, and a JL 500/1 powering a 10" sub in a sub-thump stealth box. When you first turn on the car, it takes about 5 seconds for the sub amp to turn on, and once on, if the volume on the radio goes below about level 10, the sub amp turns off and won't come back on until the volume goes above about 10. It works perfectly other than this, anyone have any ideas? Any help would be greatly appreciated!
02-05-2008, 05:52 PM
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how is the amplifier hooked up? I assume rcas are directly connected with the Headunit, remote input on the amp is hooked to the remote output of the headunit?
The problem you have would be more common when an amp has a SMART engage system, which senses when RCA's recieve voltage signal. In this system, the remote wire would not be used with the amplifier.
OTHERwise, if it is hooked up as in EX 1, it would point to 2 possible problems. First would the radio. If your nonfading preouts are toast or on their way out, your radio is not sending any signal at the lower volume. Problem 2 would be an internal problem with the amplifier.
The problem you have would be more common when an amp has a SMART engage system, which senses when RCA's recieve voltage signal. In this system, the remote wire would not be used with the amplifier.
OTHERwise, if it is hooked up as in EX 1, it would point to 2 possible problems. First would the radio. If your nonfading preouts are toast or on their way out, your radio is not sending any signal at the lower volume. Problem 2 would be an internal problem with the amplifier.
02-05-2008, 06:31 PM
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Yes, RCA's directly to the amp, and amp turn on from deck to amp. What confuses me is that it worked perfectly for a few weeks. It is kinda frustrating after spending so much time and money on what I thought was a good install!
02-05-2008, 07:07 PM
#4
I recently installed a complete stereo system in my 99 TA and it worked great for a few weeks, but lately it is giving me trouble. Let me start by describing my components, and then I will describe the problem. I have a pioneer deck, MB Quart components, a JL 450/4 amp for the MB's, and a JL 500/1 powering a 10" sub in a sub-thump stealth box. When you first turn on the car, it takes about 5 seconds for the sub amp to turn on, and once on, if the volume on the radio goes below about level 10, the sub amp turns off and won't come back on until the volume goes above about 10. It works perfectly other than this, anyone have any ideas? Any help would be greatly appreciated!
If the voltage does drop at that terminal when this happens, try disconnecting one amp at a time and lower the volume to see if it happens with only one amplifier hooked up. If it doesnt, you may need a relay in between the head unit and amplifier.
