I have a pair of alpine spx-17pro's in my front door panels, being fed 100 watts RMS from my Alpine PDX-4.100 amp. Just recently I noticed a rattling sound coming from my speakers... so I opened up the panel and look closer and found that around the center cone of the speaker there is a black plastic ring: kind of like on the border of the woofer and the cone. And when the sound is really kicking the plastic ring vibrates against the cone causing the rattling. Now I don't know why this is happening as I never noticed it before. Is it a blown speaker or might it be vibrations from the sub I have in the car? I talked to an audio guy and he said i might have gained the amp that was feeding them improperly therefor blowing my speakers, but I checked the gains and they are all stock gained (nominal). Thank you a head of time for all the great advice, Terrence
SOURCE: alpine amp and subs questions
it will depend on how you use the 2 alpine subs,, do you know what there individual impedance is [ ohms ] and how you intend on wiring them,,,in series, in parallel, in any case you must maintain the min load in order to load the amplifier properly,,,otherwise the amplifier will operate improperly and allow DC [ direct current ] to pass and fry your subs...so what I really need is more in formation
SOURCE: Blown fuses
This is a sign the you have poor voltage regulation. Which may mean that you are taxing the electrical system of your vehicle. I would suggest you adding a secondary electrical supply for you audio system. This can be done by adding an extra alternator and voltage regulator and battery supply. This will allow you to drive your audio system without having it (power supply) split between the vehicle and the audio system. The fact is your system is drawing to much current for the unit and your vehicle. You are blowing the 20-amp fuses which means the the amp is creating a currnet draw which is past the rated value of the fuses, which if done too many times could damage the power amp components in the unit. I would also check the ohmage reating on the speakers connect to the unit since you may have the wrong impedance which may also cause excessive current draw and actuate some sort of overcurrent protection.
SOURCE: Alpine PDX 1.1000 low power output - sub not loud
system not configurate properly go to a pro and let them do for you you have good equipment just need to put together rite.for wht you have you can get better sound than that,,good luck
SOURCE: Hello i just recently bought alpine speakers for my eclipse 2003
mostly because the subs in the back are probley using more amps than the ones in the front in the front should be used mostly for vocals and your bass in the trun so maybe trying to unhook the ones in the front from the sub and just leave then hooked up to the cd player where you can hear the vocals really good and leave your subs in the back hooked up to the amp
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What does the capacitor do and how do i install one. I am sorry for the noob question but this was my first install.
Thank you againf or your quick reply.
OK I will try that, but u never explianed what purpose does the 10uf capacitor server? Does it store energy the way a bigger capacitor does (I have one in my trunk), or is it similar to a High Pass Filter limiting the frequency that is sent to the speaker?
I do have a high pass filter on the amp and it is activated... I think its at 80 hrz or something like that I can get back to you.
Also could you diagnose my problem so i know exactly what is wrong with the speaker/wiring? I am sorry about all the questions, but i need to know whats wrong so I am better educated on the issue.
Thanks so much,
Terrence
ok thanks. Ill hit you back when i get the time to test it out.
any suggestions on the type of capacitor... some are rather expensive and others are dirt cheap. Good night and thank you again!
Ok so I tried connecting a 10uf 50 Volt cap and I got no sound out of my speakers. I am worried i am too much of a noob to install a simple cap. I did as follows:
Cut the positive wire from the left speaker, stripped both sides, coiled one end of the cap wire with one end of the positive speaker wire and did the same with the other. I then used electric tape to tape the whole thing together. I repeated this process for the negative wire of the right speaker.
I got no sound. is there anything im doing wrong?
i put the wiring back now and teh speaker works. Just dont know if im setting up the cap wrong.
Beside the amp in the rear of the car.
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