How many watts would this put to each sub?

[AKMX824 10+ year member]

Ok, quick question

How many watts would a Rockfrod Fosgate Amp P500-2 Specs below:

Put to two Shallow Mount Rockford fosgate 12'' Dual Slims SPECS BELOW:

There in a under rear seat box.

SUB SPECS:

12"

Impedance 4-Ohm x 2

Power Handling 400 Watts RMS

800 Watts Max

Voice Coil Diameter 2.5" 4-Layer

(6.35 cm)

Motor Size 52 oz.

Speaker Connector Dual 10 AWG compression

SPL (1W/1M) 86 dB

Mounting Depth 3.625 in.

(9.21 cm)

AMP SPECS:

Rated Power

continuous power 125W x 2 @ 4-Ohms RMS

250W x 2 @ 2-Ohms RMS

500W x 1 @ 4-Ohms bridged RMS

Total Power

total sum of 'rated power' 500 Watts

Dynamic Power

powercube measurement (info) 229 Watts x 2 @ 4-Ohms 0° Res

371 Watts x 2 @ 2-Ohms 0° Res

Bridgeable Yes

Efficiency (average) 71% @ 4-Ohm

66% @ 2-Ohm

Crossover Controls High-Pass (HP): 50Hz-500Hz 12dB/octave Butterworth

Low-Pass (LP): 50-500Hz 12dB/octave Butterworth

Tone Controls Punch EQ2 Bass: 0dB to +18dB @ 45Hz and/or

Punch EQ2 Treble: 0dB to +12dB @ 12kHz

Function depends upon LP/AP/HP switch position

Click to read more...

 

[Paaco1981 10+ year member]

Wire each sub at 2 ohms and run one on each channel. The amp is rated at 250x2@2 ohms so you will get at least that. Most Rockford Amps are underrated a bit so I would say if your voltage stays in the 13.8+ range each sub should get 275-350.

 

[ultimate157 5,000+ posts]

I had the 2002 amp (Same line) and it was underrated quite a bit for its size.

Would be ~300w to each sub I would guess.