12 volts not doing the trick?

And Alpine amps do not have a magic circuit that makes double the power at 14.4 volts as compared to 12 volts. It is called a unregulated power supply that most (not all) manufacturers use......to me your opening statement sounds like a salespersons lie. No offence intended either, just want you to know the truth.

The reason for the no answer from the guys above is that although it theory it will work and drop the resistance down to 2 ohms, increasing the power output, this output will now be split evenly between the speakers and the resistor (if one can be found that can get rid of that much heat on a consistent basis). So yes it would work but you would have no more output than what you have now.

To get louder, you need to double things. So if you do not have an amp on these speakers, add a 50 w rms x 2 amp to them. If you have a 50w rms x 2 amp, then you need a 100w rms x 2 amp to make a difference that you can hear with your ears. Have 100w rms x 2, then you need a 200w rms x 2, next would be a 400w rms x 2......

forbidden wrote:

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The reason for the no answer from the guys above is that although it theory it will work and drop the resistance down to 2 ohms, increasing the power output, this output will now be split evenly between the speakers and the resistor (if one can be found that can get rid of that much heat on a consistent basis). So yes it would work but you would have no more output than what you have now.

To get louder, you need to double things. So if you do not have an amp on these speakers, add a 50 w rms x 2 amp to them. If you have a 50w rms x 2 amp, then you need a 100w rms x 2 amp to make a difference that you can hear with your ears. Have 100w rms x 2, then you need a 200w rms x 2, next would be a 400w rms x 2......

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if i am not mistaken the Slash series PS is regulated, hence the lack of output power change.

I mixed threads...darn. but it might serve a purpose here anyways.

tcss, I think you misread my statement or perhaps I did not make it clear enough. Here it is again.

"And Alpine amps do not have a magic circuit that makes double the power at 14.4 volts as compared to 12 volts. It is called a unregulated power supply that most (not all) manufacturers use......to me your opening statement sounds like a salespersons lie. No offence intended either, just want you to know the truth. "

In my quote there you will notice the statement unregulated power supply, this like most all amplifiers (some notable exceptions though), is why and amplifier makes more power at 14.4 volts as compared to 12 volts. It is not a proprietary circuit found only in Alpine V12 amplifiers, which to me is how I read the original post. I know that you are well aware of this and this is why I think you misread my post, no harm done.

To me, and any post I have made reference to for years and years on many differing forums, a noticeable difference that one can hear is 3db, not 1 db. I assumed that all who would read this would also assume this as well. To me is seems that you assumed it was 1 db when you knew it should be 3db. So again perhaps I should have included this in the explanation. Here is the second part of my quote which supports my statement.

"To get louder, you need to double things. So if you do not have an amp on these speakers, add a 50 w rms x 2 amp to them. If you have a 50w rms x 2 amp, then you need a 100w rms x 2 amp to make a difference that you can hear with your ears. Have 100w rms x 2, then you need a 200w rms x 2, next would be a 400w rms x 2...... "

This statement does indeed show a doubling of something to have the noticeable diffenence in output levels that we can hear easily, it is also the exact basic formula for one to gain 3db and not 1db.

So, looks like I should have made my post a little cleaner or perhaps your contacts were a little blury. No harm done. Hope you agree with my post this time dude.

Ok here is the Spec Sheet.  Not double,  *my apologizes* didn't think you guys paid that much attention.  umm here you go.  I would say that at RMS 30w/chan apposed to 50w/chan is noticeable, whether 1db or not 3db.  My intention in the question was the same as "why buy monster when you can go to wall-mart for you cables"  I just want to get what my amp will produce.  By the way, I'm running kappa 6-1/2 components all the way around. 

Power Output: RMS Continuous Power (at 12.0V, 20 Hz to 20
kHz)
MRV-F357
Per channel into 4 ohms (CH-1 – CH-4) ..... 30W, 0.08% THD
Per channel into 2 ohms (CH-1 – CH-4) ...... 40W, 0.3% THD
Bridged into 4 ohms (CH-1 – CH-4) ............ 80W, 0.3% THD
4 ohms (CH-5) ......................................... 100W, 0.3% THD

Power Output: RMS Continuous Power (at 14.4V, 20 Hz to 20
kHz)
MRV-F357
Per channel into 4 ohms (CH-1 – CH-4) ..... 50W, 0.08% THD
Per channel into 2 ohms (CH-1 – CH-4) ...... 60W, 0.3% THD
Bridged into 4 ohms (CH-1 – CH-4) .......... 120W, 0.3% THD
4 ohms (CH-5) ......................................... 150W, 0.3% THD

Max. Power (at 14.4V)
MRV-F357
Per channel into 4 ohms (CH-1 – CH-4) ........................ 90W
Bridged into 4 ohms (CH-1 – CH-4) ............................ 240W
4 ohms (CH-5) ........................................................... 300W

Always assume that you will have a 12 volt supply. This is due to the demands that the vehicle places on the electrical system when it is in use.... a rainy night in the summer means, headlights, ac, wipers, parklights.... and your stereo. You will always get the bare minimums that these amps claim and even more as they do not just magically stop making power at 12 volts, upon testing, most amps exceed their 12 volt rating by a good amount (for a reliable amp like an Alpine). If your vehicle is delivering more voltage than 12 volts, that is great, you will gain even more power. In this case it is not about the amplifier, it is about the charging system and the demand it is placed on it that will determine the real output of your amplifer. Make sure that you have a good ground, read my grounding sticky as this will aid the situation and help you get the most you can from your investment.

Most people are pressed very very hard (especially males and the older we get as well) to hear a difference of 1 db. In a controlled environment like a hearing test, sure I will agree, but in a vehicle with background noise and non-linear output levels, 1 db for most people is not noticeable. For those with bionic hearing (definitely not me), I concede that there are those people that can hear this difference. So I guess we are both right.

FYI, I just had my hearing tested and it shows a 18db loss in my right ear and 19db in my left ear. Not from car audio either but from ear infections when I was young. I still suffer ear infections to this day...sometimes it's worth it thoug...I can't hear the other half bitchin' me out for some crises she is having.