I have the Alpine MRP-M350 Amp hooked up to one 12inch JVC subwoofer. Lately I noticed on and off sound coming from the subwoofer. And just today I experienced no sound and I inspected the subwoofer and noticed the amp has a dimming and blinking blue Led light. I read some posts from this site and you said its in safe mode due to the transistors So what can I do from here or can anything be the problem? Thanks
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Is it possible that you may have over driven the unit and blown either the power supply or output stages? Well, if the amp is getting power as you indicate the issue lies within the stages I just mentioned.
From the plus(+) of the speaker output on the amplifier run a cable to the plus(+) on the voice coil of the first subwoofer then follow thru with the same cable to the plus(+) of the other subwoofer.
From the minus(-) of the speaker output on the amplifier, run a cale to the minus(-) of the first subwoofer then follow thru with the same cable to the minus(-) of the other subwoofer.
This will make your amplifier run @ 2OHMS and provide you with 350 Watt RMS which will work fine even if you run your subwooffers free air(without a box))
hope this helps
You dont specify the model or RMS power of the subwoofers so i am not sure if that power is RMS or maximum. If it is RMS, then a BiG no would be the answer. Even though the MRP-M350 will drive the subwoofers and will give you a fair sound as well, it not drive both of them effectivley. After all it's only 350WATT (the amp)RMS trying to push a 2500 RMS (the subs) target, so do the maths, is that a fair fight?
hope this helps.
Hook up the MRP-M350 to one 4-ohm sub, and you get 200 watts RMS;
connect a second 4-ohm subwoofer and the power output increases to 350
watts! All that juice means that your subs won't just be loud, they'll
sound clean and thumping.
its up to you the remote wire is just another power wire.....the remote wire can be by passed but every time you turn off your car you will need to unhook the 12v amp power wire from your cars battery (if you decide to do it this way)..........or you can hook up the blue wire from the back of your CD/DVD unit what ever you are using and every time your stereo turns off your amp will too..........
hope this has helped
Sounds like you have the Remote turn on hooked to constant 12V instead of a switched power.
The Blue/White wire off the module should go directly to the amplifier remote terminal.
If this has a constant 12V when the key is off, the module is defective and needs to be repaired/returned.
hey whats up bud i got an ALPINE V-POWER MRP-M350 these amps are great go to a walmart od any music shop buy a set of R.C.A cables that plug into your amp than that Ys off to a single connection its a male cable that run a set from the back of your cd player heres the trick ONLY PLUG YOUR BLACK COLORED RCA INTO HEAD UNIT MAKE SURE YOU RAP THE RED ONE WITH TAPE OR GET A RUBBER CAP TO PUT OVER IT SO YOU DONT GET ANY STATIC FREQUENCIES COMING OUT OF THE RED ONE THAN RUN THAT SET TO YOUR AMPLIFIER AND AGAIN ONLY TIE INTO THE LEFT CHANNEL OF YOUR AMPLIFIER.... Hope you know wnat i mean by that Y adapter ther is 2 prongs that tie into amplifier than it splits into 1 were your rca cables will plug into just that one thats how you bridge these confusing amps.... TRUST ME BOTH SUBS WILL SLAM HARD I RUN 2 JL AUDIO OFF OF MINE NO PROBLEM.... WRITE BACK TO ME IF YOU HAVE ANY PROBLEMS OR WHEN YOU GET IT HOOKED UP MY EMAIL ADDRESS IS [email protected] hope to hear from you soon...
Could be your speakers are breaking down inside and shorting out. Measure the ohms of the speakere with them unhooked form the amp. They should be about what the manufacturor rated them at. (useually 4 ohms). If they are failing, the number will be lower. They may also short when power is applied- and that wont show with the meter test.
1) If you bridge on a non bridged amp your sound will be horrible as they sine waves comming out of the two teminals will be different... I suggest removing the bridge.
2) The gain knob is to adjust when the amp will reach its max volume with respect to the sterio;s volume.
3) the LP filter is a Low Pass filter and its purpose is to eliminate the higher frequencies that do not sound all the well when played over subwoofers.