Question about Alpine MRP-M350 Car Audio Amplifier

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Amp keeps shutting off

I have 2 subs hooked in to a alpine mrp-m500 amp. I had 3 subs, two 10s and one 12. It seemed like it was over loading and shutting off then i took the 12 out and left the two tens in and worked fine. Then yesterday i turned the power level on my deck on and was blasting it for like a few minutes. Then the amp just did the same thing, the light stays on but it juts doesnt work untill i shut the radio off and turn it back on and i need to keep it on really low or else it dies.

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You dont have it bridged right your dropping your ohms down way to low.. when you go to bridge your amp you have a negative and a positive on your amp thats it i have an alpine v-power mrp-m350 i think there identical should be but anyways you have to buy a Y splitter there RCA JACKS its has the 2 ends that plug into your amp than ties into a single one its a male or female adapter the place were your gonna get it w know the trick of these amps when bridging is only keep your left channel cable plugged in to your cd player i think its white colored dont plug the other one in rap tape around it or get a rubber cap and put over it.. run your RCA cables to your location of amp location and do the same just tie that into your left channel and tape or get a rubber cap to put over the other one i wish i could draw you a diagram of it hard to explain when typing it if you have a cell phone or house phone i would prefer you calling me from a cell so i dont get charged a fortune my cell number is 1814-594-2667 call me i will get it working for yeah hope to hear from you soon my name is Brad

Posted on Jan 10, 2009

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What amp would be better to use with what speakers/sub? I have a KAC-7202 kenwood 920W maximum power (150wX2 RMS, 4ohms) (230wX2 RMS 2ohms) and then the other amp I have is a Alpine MRP-M500 mono power...


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http://www.crutchfield.com/S-lCf6ewrWNQM/learn/learningcenter/car/subwoofers_wiring.html

Select from the list shown which describes your amp and subs (ie 2 channel amp with 2 4ohm subs)

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Will this amp push 2 2000 watt subs?


hope this helps.

caution

About Power supply wires (MRP-M1000 only)

• 21mm2 is the minimum power and ground cable size

that should be used to connect this amplifier. The

length of these cables should not exceed 1m to assure

safe operation.

• If the length of the power and ground cables exceed

1m, or if you connect more than one amplifier, a distribution

block should be used with 33mm2 or 53mm2

power and ground cables depending on the length

necessary. Ensure that you install a correctly-rated

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post.


RMS Continuous Power (at 14.4 V, 20 - 200Hz)

• Per channel into 4 ohms (?1% THD+N)

MRP-M1000 ......................................... 600 W x 1

MRP-M500 ........................................... 300 W x 1

• Per channel into 2 ohms (?1% THD+N)

MRP-M1000 ....................................... 1000 W x 1

MRP-M500 ........................................... 500 W x 1

Total MAX Power

MRP-M1000 ............................................. 1900 W

MRP-M500 ............................................... 1100 W

S/N Ratio

• IHF A Weighted, Reference: rated power into

4 ohms .................................................... 100 dBA

Input Impedance

• RCA IN .................................................. 20k ohms

• SP IN .................................................... 40k ohms

Frequency Response (200Hz/ -3dB) ....... 20 - 200 Hz

Crossover Frequency .......... 50 - 200 Hz (-24dB/oct.)

Input Sensitivity (RCA IN) ............................ 0.2 - 4 V

Dimensions

• Width (Heat Sink/Footprint)

MRP-M1000

......... 320 mm (12 - 19/32")/380 mm (14 - 61/64")

MRP-M500

............... 210 mm (8 - 17/64")/270 mm (10 - 5/8")

• Height ..................................... 60 mm (2 - 23/64")

• Depth .................................... 242 mm (9 - 17/32")

Weight

MRP-M1000 ................................................ 4.2 kg
MRP-M500 .................................................. 2.7 k

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1 Answer

Wiring alpine amp and sub


To wire your 4 ohm dual voicecoil to a 2 ohm mono load - all positives to + on amp.... all negatives to - on amp.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.

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1 Answer

I got to 12 they are about 400 watts each what would be a good amp to put on it to lift the subs


Hello jeremymikjha,

Basically you want to match the subs in impedance and power.

With 4 ohm subs wired in parallel, the final load will be 2 ohms. Depending on how hard you want them to hit, a pair of 400 watt RMS subs will need an amp that delivers 600-1,000 watts into a 2 ohm load.

The enclosure you use will also make a big difference. A sealed enclosure will need more power. A ported enclosure will be louder with less power.

The Hifonics shown here would be a good choice for a sealed enclosure. It's rated for 1,100 watts RMS into a 2 ohm load.

http://www.sonicelectronix.com/item_17598_Hifonics+BXi+1610D.html

The Eclipse XA1200 outputs 600 watts RMS into a 2 ohm load. It would power the subs very well in a ported box.

http://www.sonicelectronix.com/item_17598_Hifonics+BXi+1610D.html

Somewhat less expensive but good quality would be one of the Alpine MRP series. The MRP-M500 is only $179.99 at SonicElectronix. It delivers 500 watts. It's big brother is the MRP-M1000 with twice the power. Be sure your subs are securely mounted or this amp will literally "lift the subs".

Hope this helps.

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Hope this helps.

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