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<blockquote data-quote="zako" data-source="post: 7982364" data-attributes="member: 629735">One thing I have heard about Alpine MRP mono block amps is that internally they&#039;re implemented as a two channel amplifier bridged. This can&#039;t be good for efficiency (relative to more traditional mono amps), as each channel is seeing 1ohm impedance when you connect 2ohm subwoofer to the amplifier. This could explain some issues with overheating some people have been having with these amps. Having said this, Alpine MRP should do more than rated. I have seen a test that it does well over 900watt RMS with just 12.5V battery. It should give a lot more with 14.4V.Personally, for efficiency reasons, I would have preferred the PPI P1000.1 or SoundStream TN1.1200D. Inside, they&#039;re the same amp, but PPI is slightly underrated. They should be good for about 1kwatt at 2ohm. These are good performers. Considering these are sold normally for around $200 online, I don&#039;t see a reason taking chances with audiopipes to save a few bucks.</blockquote>

[QUOTE="zako, post: 7982364, member: 629735"] One thing I have heard about Alpine MRP mono block amps is that internally they're implemented as a two channel amplifier bridged. This can't be good for efficiency (relative to more traditional mono amps), as each channel is seeing 1ohm impedance when you connect 2ohm subwoofer to the amplifier. This could explain some issues with overheating some people have been having with these amps. Having said this, Alpine MRP should do more than rated. I have seen a test that it does well over 900watt RMS with just 12.5V battery. It should give a lot more with 14.4V. Personally, for efficiency reasons, I would have preferred the PPI P1000.1 or SoundStream TN1.1200D. Inside, they're the same amp, but PPI is slightly underrated. They should be good for about 1kwatt at 2ohm. These are good performers. Considering these are sold normally for around $200 online, I don't see a reason taking chances with audiopipes to save a few bucks. [/QUOTE]

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