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I need operating manual for my V12 MRV-1207 power amplifier.

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Posted on Jan 02, 2017

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SOURCE: just want to know what speaker wattage matches my v12 mrv f705 85 rms x4 channel amplifier?

Use speakers that will handle 85 RMS continuous or higher wattage. I have 200 watt Rockford 6.5s on a 75 watt amp. They sound great with plenty of headroom if I go to a bigger amp.

Posted on Dec 13, 2014

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Diagram for mrv-f3502 500w car audio power amplifier v12


If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Circuit diagrams of many popular brand TVs and other devices are given.

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Alpine Amplifier Cuts in and out on Passenger side while driving


Make sure wirings are not pinched and try replacing the fuse as well.

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Hello hlanderson,

You can download a copy from Alpine's support vault here.

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Amplifier displays "CUR"


Hello anwbrown,

The "CUR" display means that the amp is drawing excessive current and the protection circuit is activating. Too low impedance or shorted speakers will cause the amp to draw excessive current.

The Alpine V12 is a Class D mono amp with only one set of speaker outputs. All versions, M301, M501, and M1001 are only stable to 2ohms. Assuming that all 6 of your connected subwoofers and speakers are 4ohm and they're all connected in parallel, the amp sees a .67 ohm load, far below it's rated impedance.

When brand new, the amp could probably operate at low to moderate volume levels without drawing excessive current. But as electronic components age, their tolerances change and they become less able to withstand excessive current or mismatched impedances.

I'd get a 4-channel amp and drive the 4" speakers off the front channels and the 6X9's off the rear channels. And just power the subs off the V12 making sure that they are connected to show a minimum load of 2ohms.

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1 Answer

Alpine v12 amp no power


its your fuse box. i would bypass the fuse box and wire this amp directly to the battery via monster cable. make sure you attach a 30wieght fuse to the monster cable that is running from the battery to your amp. ground the amp against the trunk. scrape the paint of a section and drill a hole in the trunk. use this for the ground for you amp. this will fix the no power issue.

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V12 MRV-1507 or Xplod? Amplifier - XM-ZR1252 good quality sound


Alpine is just a better brand in general. I have the older MRV-1507, sounds GREAT, i have had friends who has had the Explode line, but it was always a temporary system until they got something better, like the alpine or kenwood.

Aug 14, 2008 | Car Audio & Video

1 Answer

MRV - 1507 Question ...


The MRV-1507 is a two channel amplifier, below I've pasted important info from the manual:

Battery Lead (Sold Separately)
Be sure to add a 80 amp fuse as close as possible
to the battery’s positive (+) terminal. This fuse will
protect your vehicle’s electrical system in case of a
short circuit. If you need to extend this lead, the wire
gauge should be AWG8 or larger.
MRV-1507 ... 80A amp fuse

Power Output: RMS Continuous Power (at 12.0V, 20 Hz to 20
kHz)
MRV-1507
Per channel into 4 ohms ......................... 150W, 0.08% THD
Per channel into 2 ohms .......................... 300W, 0.3% THD
Bridged into 4 ohms ................................ 600W, 0.3% THD

You can find a manual for this amp here:
http://www.alpine-usa.com/US-en/support/support_search.php?modelname=mrv-1507

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1 Answer

Alpine V12 MRV-T707


power wire from fuse block goes to "the 1 that says power"...remote is used to have your device turn another device on...like a cd changer

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1 Answer

Alpine Amplifier Cuts in and out on Passenger side while driving


this isnt a complex problem but both units may need service

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