Question about Alpine MRP-M650 Car Audio Amplifier

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Should I buy

I have 1 400 watt rms 4 ohm subwoofer, would this amplifier push it okay?

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  • bassssssss Jan 08, 2008

    What do you exactly mean by power rating? It's 400 watts RMS, I'm just wondering since the amp sais 2 or 4 ohm if i can use a single 4 ohm sub with it.

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  • Master
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If the power rating of the woofer is accurate, this amp would be a good choice.

Posted on Jan 01, 2008

  • Perry Babin Jan 08, 2008

    There are many speakers that are EXTREMELY over-rated. If you're buying from a manufacturer that accurately rates their speakers, a woofer rated for 400 watts RMS, would be a good choice.

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1 Answer

I have 2 15" dvc 4 ohm kickers 1000 watt / 500 rms &a1000 watt avionixx 4 channel amp what would be the right wiring scheme?


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I need 4 ohm speakers for my Warrior IS600 Amplifier


It is rated as a dual 300 watt amplifier, shich strongly suggests a Class D peak value for each amplifier.

In theory- 100 watt RMS 4 ohm speakers should be adequate.

Sep 20, 2012 | Audio Players & Recorders

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How many watts does this amp put out


50 watts RMS x 4 at 4 ohms (75 watts RMS x 4 at 2 ohms)
150 watts RMS x 2 in bridged mode (4-ohm stable in bridged mode)

Feb 19, 2012 | Alpine MRP-M650 Car Audio Amplifier

1 Answer

Which will hit harded 2 ohm or 4 ohm


In general, the 2 ohm speaker will be louder than the 4 ohm with most amplifiers. For example with this amp being sold at Best Buy you have 400 watts rms at 4 ohms or 600 watt rms at 2 ohms. However, being the same model sub they should 'hit' the same.

Hope this helps

Ray

Mar 30, 2011 | Kicker CVR15-2 Car Subwoofer

1 Answer

Volfenhag ZX4725 i am buying this subwoofer and


No the LOWER the resistance the MORE Output or Draw, If say it is 100 Watts into 4 Ohms, if you used a 2 ohm speaker it would draw 200 watts.(only if capable of delivering that amount of power) The LOWER the Resistance, the HIGHER the Current Draw. WATTS = AMPS x VOLTS. (This is not strictly true with amplifiers output though, as it is an AC Current, and a "Reactive" load, it has, Inductance, Capacitance and Resistance, all in one.and is worked out via a Formula) see below. http://en.wikipedia.org/wiki/Audio_power

http://www.hometheaterhifi.com/volume_1_1/v1n1spk.html

Now with Dual Voice Coils, Essentially, you can think of these speakers as TWO speakers in ONE enclosure. As such, They are basically TWO Speakers. Please see the website below it explains everything for you. http://www.diyaudioandvideo.com/FAQ/Wiring/
Everything is a function of Resistance and Ohms law.
Current (I) = Voltage (E) divided by Resistance(R).
Voltage = Current Multiplied by Resistance.
Resistance = Voltage divides by Current.

Apr 17, 2010 | Car Audio & Video

1 Answer

I hooked up 2channel 500 watt amplifer and 1200 watt 300 rms subwoofer now the protection light comes on when i turn up volume


your speakers rating is too low for your amplifier. 300 watts RMS means the speaker can operate on an average of 300 Watts continuously. the 1200 watt rating is peak wattage input and meant for intermittent intervals only, a like a bass drum beat count. also , your speaker impedance must match your amplifier impedance or the speaker must be a higher impedance than the amplifier. Never lower than the amplifier's impedance output rating. If The amplifier is rated into an 8 ohm load, your speaker must be 8 ohms or higher. in other words you cannot use a 4 ohm speaker or you will damage the amplifier .

Mar 14, 2010 | Car Audio & Video

1 Answer

Mtx audio 4252 amplifier


Hello freshman_fox,

63 watts X 2 @ 4-ohms.
125 watts X 2 @ 2-ohms
250 watts X 1 @ 4-ohms bridged

Since no power rating is given @ 2-ohms in bridged mode, it means that the amp is only stable to 4-ohms.

The manual does not specify a peak power, but since RMS is about 70.7 of peak, that makes it 353.5 watts.

You can download the manual from here. Hope this helps.

Jul 10, 2009 | Car Audio & Video

1 Answer

Trying to figure out what kind of amp i got amercian pro vs-3507?


The VS3507 Is a class D monoblock.
Your optimum wiring for this amplifier is a 2 Ohm load - so it produces its full potential power of 350W RMS.

To Achieve a 2 ohm load, the most common load is one of the following...
(1) Dual 4 Ohm Voicecoil Subwoofer Wired in Parallel.
(2) 4 Ohm Voicecoil Subwoofers wired in Parallel.
(1) Quad 2 Ohm Voicecoil Subwoofer wired in Parallel/Series.
(1) Single 2 Ohm voicecoil subwoofer.

American Pro VS3507 2000W Car Audio Monoblock Amplifier
American Pro VS3507 Monoblock Amplifier Details
  • Built-In Crossover
  • Variable High/Low Pass Filters
  • Phase Shift Control
  • Subsonic Filter
  • Bass Boost Control
  • Dancing Lights at the Rhythm of Music
  • Protection Circuits
  • Gold Plated Terminals
  • Power & Protection Circuit LED
  • 1 x 250 Watts RMS @ 4 Ohms
  • 1 x 350 Watts RMS @ 2 Ohms Thanks for using FixYa - A FixYa rating is appreciated!!

Jan 29, 2009 | American Pro Car Audio & Video

1 Answer

I found this amp and I can't seem to figure out what the wattage is?


You are probably aware on how to use these output figures, but I'll write a quick explanation on the specifications for future readers anyways :)

The concpet CC-452 amplifier has the following power output specifications:

Calculated at 14.5 volts DC;

At 4 ohms per channel - 45 watts x 2 (RMS)
At 2 ohms per channel - 70 watts x 2 (RMS)
At 4 ohms bridged - 150 watts x 1 (RMS)


This means that your amplifier would provide 45 watts of power each for your front speakers, which are normally a 4 ohm load per side (45 watts for left, 45 watts for right), that's unless they are one of those exotic higher end brands (eg: Boston Z6s which are 3 ohms). Rarely, you will find speakers that are rated at 2 ohms per side, but in this instance the amplifier will provide 70 watts of power into each speaker. On your speaker specifications, you will find a value termed "nominal impedance" which will give you the ohm rating of the speakers being used..

On the other hand, if you "bridge" both channels into a single channel (using a diagram often marked on the speaker terminals of the amp), you could then provide 150 watts into a subwoofer (providing it was a 4 ohm woofer).

It's not recommended to use this amp bridged under 4 ohms..

Some subwoofers may be lower than 4 ohms, and you will not be able to use this amplifier for these types of speakers without risking amplifier failure. Also, some subwoofers may have 2 seperate voice coils, and you will have to use both channels of the amplifier seperately (not bridged) in order to correctly connect this type of speaker for use.




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1 Answer

Rockford Fosgate 501bd question


that amp should work fine with those speakers,just make sure that they(speakers)are wired for 2 ohms.at 500-600watts coming from amp, you should be getting 250-300 watts per speaker,just dont crank your gain too high on the amp.

Aug 29, 2007 | Rockford Fosgate Power 501BD Car Audio...

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