Will this amp push two Rocksford fosgate 4 ohm 12" subs

For 2 12" R2D4's I'd suggest going for the R1200.1D. Should be more than enough to power them. I'm using it for 2 10" R2D2's and a single 12" R2D4 all wired up together at 1 ohm.

With the P600x4 . I want to power my 6.5 components and a set of 6x9's all of which are about 100 watts RMS each. What is the RMS @ 4 ohms on amp

I would look at other amps. One of these doesn't have enough power for my doors. Their 2 channel does a decent job on 4 6x9. Their anticlip feature leads to amp cutting in and out annoying feature.

Is this amp 2ohm stable?

Yes sir.. it is 2ohm stable. I'm running a single 10" 4ohm DVC bridged to the rear channel with (2 0hm) 6x9s running off the front channel in the rear deck and it sounds great. As long as you dial it in as per the C.L.E.A.N. instructions you'll be really happy with this RF amp.

What is the true rms power on the 600x4? I know these amps are under rated

The short answer is above 600 rms total. Every amp comes with a birth sheet that shows the results of a Amp dyno test performed on the amp. Mine was 191 rms per channel @ 2 ohms which translates to 764 rms total. Every amp sold by Rockford is underrated so expect to see a larger rms rating than advertised. I've seen birth sheets for this specific model ranging from 750 rms up to the high 900 rms range.

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Rockford Fosgate P400X4 Punch 400-Watt 4-Channel Amplifier

Rockford Fosgate P400X4 Punch 400-Watt 4-Channel Amplifier

Product ID: 1164824

Details

Brand
Rockford
Item dimensions L x W x H
11 x 7.8 x 2.4
Manufacturer
Rockford
Mounting Type
Car Mount
Voltage
12 volts

⚡400W max power punch

🔊4-channel versatile output

🎚️On-board Punch EQ +18dB boost

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Description

🎵 Unleash the Punch: Amplify Your Drive, Own the Sound!

TAILOR YOUR SOUND - Built-in Punch EQ and variable Butterworth crossovers let you customize bass and frequency response.
ROCKFORD RELIABILITY - Class A/B topology and a 1-year warranty ensure durable, high-quality performance.
SEAMLESS INTEGRATION - RCA inputs accept both high and low-level signals—no signal converter needed.
POWER YOUR RIDE WITH PRECISION - Delivers up to 100W per channel at 2-Ohm for crystal-clear, powerful sound.
ULTIMATE MULTI CHANNEL FLEXIBILITY - Supports 4-way full-range or 3-way systems with subwoofer bridging for immersive audio.

The Rockford Fosgate P400X4 is a compact yet powerful 400-watt 4-channel amplifier designed for versatile vehicle audio setups. It delivers up to 100 watts per channel at 2-Ohm, supports both high and low-level inputs without converters, and features on-board Punch EQ with a +18dB bass boost. Engineered with Class A/B topology and backed by a 1-year warranty, it’s the perfect upgrade for millennials seeking premium sound clarity and customization on the road.

Specifications

ASIN	B00BF6HZ6K
Best Sellers Rank	#66,427 in Electronics ( See Top 100 in Electronics ) #139 in Car Multichannel Amplifiers
Brand Name	Rockford Fosgate
Customer Reviews	4.5 4.5 out of 5 stars (282)
Global Trade Identification Number	00780687342272
Included Components	P400X4
Item Dimensions	11 x 7.8 x 2.4 inches
Item Weight	3.15 kg
Manufacturer	Rockford Fosgate
Maximum Output Power	100 watts per channel
Model	P400X4
Mounting Type	Car Mount
Number of Channels	4
Output Power	400 watts
Part Number	P400X4
UPC	780687342272 739197278595 796327931423
Unit Count	1 Count
Voltage	12 volts
Warranty Description	1-Year Manufacturer Warranty

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578591CFA

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In stock

Sold byAmazon SenegalDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Senegal.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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