ohm rating for memphis components

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=45593
Printed Date: May 10, 2025 at 3:23 PM

Topic: ohm rating for memphis components

Posted By: AJRXtreme
Subject: ohm rating for memphis components
Date Posted: December 20, 2004 at 10:34 AM

I just bought a pair of 15-MCSQ6.5's and i am trying to decide which amp to buy to power these front components and the back coaxials. The components are rated at 50rms/100peak, and the coaxials are rated at 50rms/220 peak. Should i buy the memphis mclass amp that is 4x75 at 2ohms and 4x50 at 4ohms, or the same amp but 4x115 at 2ohms and 4x75 at 4ohms. I wanted to know what the ohm rating was for these components and if they are 2ohms then i will prolly end up going with the 4x75 at 2ohms. Thankyou

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03 F150 on 24's
HU:Pioneer DVD5700
Frt:MC57
Subs:(12)S12L7
Amps:(3)KX2500.1's, MC-2004

Replies:

Posted By: jeffchilcott
Date Posted: December 20, 2004 at 2:24 PM

almost all component sets will have a 4 ohm rating, and I am sure these have a 4 ohm rating as well. I would use a 4x75 to power all the way around the car.

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2009 0-1000 Trunk WR 154.0DB 2009 1001+ Trunk WR
2007 USACI World Champion
2007 World Record
2006 USACI Finals 2nd Place

Posted By: kfr01
Date Posted: December 21, 2004 at 1:42 AM

Only worry about the 4-ohm rating for those components and coax speakers.

Go with the 4x75 if you have the extra money handy... headroom never hurts. But there will probably be very very little difference in what you actually hear.

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New Project: 2003 Pathfinder

Posted By: kfr01
Date Posted: December 21, 2004 at 1:43 AM

Just remember to get your gains set by someone professionally AND use high pass crossovers.

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New Project: 2003 Pathfinder