Hello and thanks for taking to time to read about my problem. A couple days ago I was driving on the highway and my car broke down. Well I had it towed to a repair shop and had the car fixed. Well I took out my subwoofer and amp when I left my car at the shop. Well the car was fixed, I put in the subs and amp, hooked everything up, and now I can not get any bass to come out of the subs. If you put your hand on the cones there is vibration, but the output is very low. I adjusted the gain, LPF settings, everything I can think of. There is power going to the amp. Any ideas?
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any amp over 400 watts can power pretty much any sub even one without a sub output just bridge the connection to an amp without sub output. btw a subwoofer does not use as much watts as it says on the sub it usually only take a couple hundred watts to power the sub and make it sound clean
One or more of the DC to DC outputs might be bad. Check the /- 54v on the main PCB and the /-15v on the switching controller PCB. Losing one side of the 15v will cause the limit comparator to rail and force the servo protection, even with no input signal.
When using component speakers, it is normal to connect the head unit or amp outputs directly to the woofers and use a "high-pass" filter to the tweeters. Most component speakers sold as a set will include the correct filter along with wiring diagrams. The12volt.com web site shows examples of passive crossovers here.
Amps usually include built-in filters and a means of setting crossover frequencies according to the speakers attached. If the amp is connected to full-range speakers, it is set to "Full" or "BP". When used to drive subwoofer(s) only, the setting is most often "low-pass".
Most stock radios and aftermarket head units are relatively low power and just do not produce enough power output to drive subwoofers adequately. It takes more watts to move the larger cones and that usually means a separate amplifier.
Normally you do have to leave your car running sometimes 10 mins sometimes couple hours,
I had same problem with my one and i must have been driving around for days like it and one day it just decided to work
You may find that if you disconnect the battery for couple mins then put it all back together it will work
If not matey then you probley have a faulty headunit
so this is what i suggest to do
Number 1 Disconnect Battery for say 5 mins then connect it all up and see what happens if not you most prob do have a faulty headunit. you can take it to your local car audio shop and they will either repair it or decode it for you
Hope this helps you
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