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rockford fosgate t4004 or p450.4?

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=98443
Printed Date: May 19, 2025 at 2:48 AM


Topic: rockford fosgate t4004 or p450.4?

Posted By: pistons23
Subject: rockford fosgate t4004 or p450.4?
Date Posted: October 29, 2007 at 6:08 PM

i have a regular cab 2000 ford ranger.  i recently installed a pioneer deh-3900mp reciever.  i have a set of infinity kappa 60.7cs(2ohms) components(2-90RMS/270Peak) waiting to be installed.  this is where i need help.  since those components run at 2ohms i need a amp to power them.  in the future i would like to run a shallow sub behind the seat, so it has to be a 4 channel amp.  ive come across 2 models that might work. 

Rockford Fosgate Power T4004

25W x 4 @ 4-Ohms RMS
50W x 4 @ 2-Ohms RMS
100W x 4 @ 1-Ohm RMS
100W x 2 @ 4-Ohms bridged RMS
200W x 2 @ 2-Ohms bridged RMS

Rockford Fosgate Punch P450.4

60W x 4 @ 4-Ohms RMS
110W x 4 @ 2-Ohms RMS
225W x 2 @ 4-Ohms bridged RMS

ive seen birth sheets for both and they seem to each average 90-100W x 4 @ 4ohms.  which of these would give me more power if i use channels 3 and 4 to power a single subwoofer?




Replies:

Posted By: reference10.0
Date Posted: November 03, 2007 at 10:22 PM
the power line is under rated so you will get more rms than what is listed. check out this link it should help you decide. https://www.rockfordfosgate.com/products/amp_power_output.asp 


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