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Old 08-16-2015, 10:19 AM
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Default MB Quart DSC4x125 vs PPI 900.4

i've owned my mb quart for a few years now and i think it's time to upgrade. between the 2 amps listed, which do you think is better? i'll be running it at 4 ohms and am more worried about the sq than anything. i know power is pretty similar, i just really like the footprint of the ppi and the efficiency. any input is appreciated.
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Old 08-16-2015, 10:33 AM
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i've been happy with my ppi900.4. the likelihood of you noticing a difference between the two in a blind test is very small.

i dont really see the point in spending the extra money on the brand amp when the extra money would be better spent on better speakers, deadening, and tuning.
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Old 08-16-2015, 10:58 AM
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i'm going to be running cdt 3 way components up front and 2 ways in the rear. tuning is going to be handled by my jbl ms8 and the car is already deadened but i'm shopping around to add something else to make it a little quieter than it already is.
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Old 08-16-2015, 02:12 PM
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Also comparing 2 different types of amps, class ab vs class d. Ive found class ab to have a better (warmer) sound. Ive owned the ppi p900.5 and my memphis mc4.50 and Arc 4050cxl both sounded better and these amps are only a "50x4" rated amps. Vs ppi 100+X4.
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Old 08-18-2015, 08:42 AM
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I've had both and loved both. Can't beat the power to size ratio of the ppi. Can't go wrong either way. I miss the old dsc series. Like mentioned the ab offers a warmer sound but probably not that noticeable. Id go ppi due to size and output

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Old 08-18-2015, 08:50 AM
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New OPTI100X4 Optidrive 800 Watt 4 Channel Competition Class MOSFET Amplifier 68888995771 | eBay

Lanzar OPTI250X4 Optidrive 2000 w 4 Channel Competition Class MOSFET Amplifier 68888995788 | eBay

Would be my choices of 4ch amps
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