Amp keeps shutting off

I'm using that Alpine right now for 2-12" subs and I have compared it to 6 or 7 other amps this month and most were 4 channel 150Watt/Channel Bridged to 300Watts x 2 and found the Alpine to be superior in both sound quality and loudness. The Alpine has also not turned off even with full volume for hours at a time, Very solid amp I was very surprised due to it's size!

sub spec 250watts per coil you should be just fine I have 2 typr 15s on orion hcca 2500 1 and it kicks a$$ thats 1000 watts over the rated limits of the subs only shut the amp down once these subs can take a lot more power than they say just use your common sence with the volume and gain levels

you can find your wiring diagram here
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)

Hope this helps and please rate, thanks

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

in-line fuse on the power cable near the battery positive

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

have your amp tested and is the sub 4 ohm or run to 2 ohm

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.

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.

Try making sure your sound input to the amp is good (could be a bad output from the radio or RCA cable), could also be a bad input from the amp, bad outputs from the amp or even a bad sub. You have to check each of these and eliminate the problem. I would make sure you have a good audio signal to the amp first.

The Subs are probably blown . Take them to a shop to have them tested .

Hello dalex7,

The Kicker 08ZX400.1 would be a great amp for your subwoofer. It will work into a 4ohm load with no problems.

But you can buy an amp with more power, looks better, has a smaller footprint, and cost less than the 400.1. I'd look at the Alpine MRP-M500. Take a look at it here at Crutchfield. The M500 is also easy to install, runs cool, and is very efficient.

Hope this helps.