Which amp do I need

Old Nov 20, 2010 | 07:54 PM
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Which amp do I need

I have two 10" Kicker CompVT. Thinking of getting the Alpine PDX-M6 amp. Is this too much power for these 10's?

The subs are 400w RMS (800w Peak)

The alpine PDX-M6 is 600w x 1 @ 4ohms.

Thanks....if this amp won't work for me what do you suggest.
 
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Old Nov 20, 2010 | 10:35 PM
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What is the voice coil configuration on your subs? Single or dual? 4ohm or 2ohm? Is that Alpine amp stable @ 2ohm?
 
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Old Nov 20, 2010 | 10:59 PM
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Okay, it looks like the Alpine PDX-M6 produces 600 watts RMS @ 4ohms or 2ohms which means your subs would get 300 watts RMS each. In my opinion, that sub/amp combo would work very nice together.
 
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Old Nov 21, 2010 | 11:32 AM
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Originally Posted by TK5
What is the voice coil configuration on your subs? Single or dual? 4ohm or 2ohm? Is that Alpine amp stable @ 2ohm?
The Amp is stable @ 4 and 2 ohms. Here is a link to the amp.http://www.alpine-usa.com/product/view/pdx-m6/

I'm not sure about the voice coil of the subs but I know they are both 4 and 2 ohm stable. Here is a link to the subs. http://www.kicker.com/comp_vt

thanks for your help....I have all the pieces for my system, just trying to decide on an amp. I was hoping that it would push 300w to each sub. So if that's the case, I should be good to go.

Also thinking of using the PDX-F4 for my door speakers. This amp pushes (100w x 4 RMS) I have the Alpine 6.5 type R components for the front (110w RMS, 330w Peak) and Alpine 5x7 type R coax for the rear (100w RMS, 300w Peak).

Do you think this configuration would be stable. or pushing 100w to a 100w RMS speaker is too much?

Thanks again.
 
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Old Nov 21, 2010 | 02:46 PM
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I am pushing 125 RMS x4 to my Infinity Kappa's rated at 90 RMS for the front components and 100 RMS to the rear coax and they do just fine. Granted I am using the stock head unit with a line out converter and my gains are not set up very high.
My home system is pushing 125 RMS to a set of speakers set up for 125 peak and has been doing so for 15 years (very old system I know) Distortion is what will damage your speakers the most, watch your frequencies and you'll be fine.
 
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Old Nov 21, 2010 | 02:52 PM
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I say go with a slightly bigger amp. There' alot of amps that produce more power than that and for less. Because of resistance the amp will rarely give out 600 watts RMS at all time. due to the equation Voltage-squared/Resistance = power. but it will usually between 200-300 watts each subwoofer (depending on the efficiency[low resistance] of your electrical system). go with around 800 watt wrms amp , this will keep you in between 300-400 for each subwoofer and i personally will be the best bet.

http://www.sonicelectronix.com/item_...PZT1500.1.html

Something like that. and asi im sure you know, ONLY look at rms.

(side note: to prove voltage is always changing, get a DMM and plug it into the speaker terminal of one of your amps, and play some music.)

hope it helped!!
 
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Old Nov 21, 2010 | 05:41 PM
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Thanks guys. I was worried it might be too much but it going by what your saying it might not be enough. Well, I have a couple of more days before I buy so lets see what I find doing more research. Thanks.

-cesar
 
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Old Nov 22, 2010 | 10:13 AM
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Try Elemental Designs Nine 1. This amp has some great specs with plenty of power & you can't beat the 5yr warranty.

http://www.edesignaudio.com/product_...products_id=44

You can pick one up used for a great price

http://forum.edesignaudio.com/showth...and-73958.html
 
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Old Nov 23, 2010 | 11:23 PM
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Originally Posted by Louderisbetter1
I say go with a slightly bigger amp. There' alot of amps that produce more power than that and for less. Because of resistance the amp will rarely give out 600 watts RMS at all time. due to the equation Voltage-squared/Resistance = power. but it will usually between 200-300 watts each subwoofer (depending on the efficiency[low resistance] of your electrical system). go with around 800 watt wrms amp , this will keep you in between 300-400 for each subwoofer and i personally will be the best bet.

http://www.sonicelectronix.com/item_...PZT1500.1.html

Something like that. and asi im sure you know, ONLY look at rms.

(side note: to prove voltage is always changing, get a DMM and plug it into the speaker terminal of one of your amps, and play some music.)

hope it helped!!
Actually unless you have the volume at its max and the song is recorded at an extremely high level, assuming the gain is set correctly, you'll pretty much never approach the max power from the amp on music. Good news is that you don't need to to get plenty of output.
 
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