The Alpine cda-7842 was not intended to play burned cd's and Mp3's. I don't recemmend you play anything but store bought cd's. I belive that the laser can be damaged by playing Mp3's and they sometimes make weird noises because of the laser seeking erratically, due to the year that cda-7842 was manufactered.
My Alpine CDA-7842 works fine from a functional point of view but the
display (readout) had stopped working. All the lights on the display
work but the actual readout is blank. At first the readout would
intermittently work now it's completely dead. Any assistance would be
Is this a custom instal? If yes, Check that the amps are powering up. You may need to check the fuse for the amps or the remote wire fuse. It could have blown hooking up the new battery. If there are no amplifiers check both fuses for the Alpine deck unit.
Unless other specified in paperwork, all Alpine receivers are 4ohm capable only.
Now yes there are exceptions, but not many.
Now for amp almost all alpine amps can be run in several different resistances.
Basically for sure 4ohm, now depending on model some have abilities to go as low as 1ohm stable. But for most 2 ch alpine non special amps are all 4ohm and most 2ohm capable.
Now better models can do things such as run 2,3,4 ch. And some can even get to .5 ohm loads stable.
Sep 5, 2013 - Uploaded by Mx Car Audio
I recently bought the Alpine W940 and the bluetooth that connects to ... A simple reboot at the shop and the ...
sp?ciales, de l'actualit? d'Alpine, et vous aurez une chance de remporter des prix. Gracias por adquirir ... MANUAL DE OPERACI?N .... Listening to the Radio .
I would think a 1000 watts would be enough for 2 10's.
You can hook up two dual voice coil subs a few different ways.
First thing I would check for is what ohmage your amp is rated for.
You don't want to push a lower ohmage than what your amp is rated to handle.
That is a good way to overheat & ultimately fry your amp.
After that, you can wire your subs accordingly.
If they are dual 2 ohm subwoofers, you can wire each of them as a 4 ohm load, 2 ohm load or even a 1 ohm load.
I would personally go by what the amp is ratted for.
Remember though, the lower you run the ohmage, the better base responce & harder the hit you will get.
manualslib.com is a 100% free online manual for any manual needed and if you want to buy there is that option to or simply just print out the pages if you have that much ink..but just an option...Hope this helps...
Make sure even thought the wires are the same color that your car color code also matches the color code of the Head Unit if not stock radio then the color code would be in your cars manual book or find it online in the image section of the browser you are using or better yet just order your self the radio adapter for your cars model for that type of head unit your installing or troubleshooting in your case and make sure all wires and positive wires are hooked up properly because some devices will not work if all the wires are not wired correctly meaning left terminal to left and right terminal to right speaker and positive and negative wires installed correct as well.. Hope this helped..