Question 1

I have a 500x1 Rockford Fosgate Prime Class-D amp. Should I get the 2 Ohm or 4 Ohm version of this sub?

Accepted Answer

If you're getting one sub, get the one with dual 4-ohm voice coils. Wire them in parallel for a 2-ohm load on the amplifier for 500w to the one sub. If you're getting two subs, get the dual 2-ohm version. Wire the voice coils in series for 4 ohms per sub, then wire them in parallel to the amp for an end load on the amp of 2 ohms. This will give you 250w per sub.

Question 2

Amp suggestion for running two of these subs?

Accepted Answer

I am running a  Fosgate T1000-1bdCP.  Its a 1000w watt @ 2 OHMs.  and i have both  P3D4 subs Wired to a 2 OHM final.  YouTube "how to wire 2 Dual 4 OHM voice coils to a 2 OHM final" if your wiring up your self... i also recommend a Ported box with at least 2 cu. ft per chamber nor 2 cu. ft per speaker  i have this set up in a full 1 inch MDF hand made Labrynth slot port box and it SLAAAAAM! i also Listen  to Mostly RAP so.... it suites fine for BASS

Question 3

Should i get 1 15 inch p3 or 2 12 inch.  I will pair with rf prime 1200

Accepted Answer

I had 2 12's at one point, then upgraded to a solo 15, then had one 12" P3 in a smaller box. The solo 12 was almost as loud as the 15 and took up a lot less space.

Question 4

I have 2 of these what type of ported subwoofer box should I buy for them?

Accepted Answer

I only have one P3, I bought a box with a vertical slot port on the left side of the box. A friend of mine has two kicker compRs, he has a dual slot ported box for his subs. His slot ports are on opposite ends of the face of the box. I would recommend that kind of box. The slot ports provide a lot of space for air travel. There are different setups with one big port in the middle. I personally would go with one like my buddy has where the ports are on opposite ends of the box. I think sound quality is be better like that instead of the one in the middle. Search on amazon for a dual slot ported box and you can see both types of boxes. I would also recommend wiring your subs as two ohm subs. Do this by taking some  speaker wire +/- and linking the + to + and - to - connections on the speaker before putting the +/- connectors from the box. It doesn't matter after that where to put the + and - wires from the box to the speaker just make sure you always put + to+'s and - to -'s. Gives you more power. Good luck to you, make some noise!!!

Subwoofer Diameter	12 Inches
Unit Count	1 個
Item Weight	11.18 Pounds
Is Waterproof	FALSE
Manufacturer	Rockford Fosgate
Product Dimensions	36.83 x 36.83 x 25.4 cm; 5.07 kg
Item model number	P3D2-12
Is Discontinued By Manufacturer	No
Item Dimensions L x W x H	36.8 x 36.8 x 25.4 cm
Voltage	12 Volts
Wattage	1200 W
Item Weight	5.07 Kilograms

Rockford Fosgate P3D2-12 Punch P3 DVC 2 Ohm 12-Inch 600 Watts RMS 1200 Watts Peak Subwoofer by Rockford Fosgate

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