In order to get this amp working at 1 ohm, do my (2) p3d4-10 subs have to be 2 ohm or 4 ohm?

It all depends on how they are wired. You can wire (2) 4ohm speakers in parallel to drop it to 2 ohms. Them take the positive and negative and connect them “bridged” to the amplifier and you’ll be at 1 ohm. Take (2) 2 ohm subs and wire them the same way and you’ll be at 1/2 ohm and likely blow the amp. I didn’t check the amp but you better verify that it it 1 ohm stable so you don’t blow it at 1 ohm if you plan on waiting it that way.

I have two of these amps. One works just fine the other seems like it isn’t connecting rca. The blue light comes on but no sound

Ok, disconnect the working amp and connect the non working amp to the working amps wiring. Does the non working amp now work? This will tell you if it's the amp or the wiring. Next check all volumes, left rights, front- rear

can this amp push two 10" R2D2?

I would say yes. Amp has plenty of power. I have it on two mofo 15's.

Will this amp work for 2 R2SD2-12s?

No, it will send to much power to the subs since they are only 250 watt rms

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Rockford Fosgate Punch P1000X1BD 1000 Watt Class-bd Mono Amplifier | Class-BD, Optimized for Mid-bass Speakers or Subwoofers Only

Rockford Fosgate Punch P1000X1BD 1000 Watt Class-bd Mono Amplifier | Class-BD, Optimized for Mid-bass Speakers or Subwoofers Only

Product ID: 1167627

Details

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

⚡1000W max power output

🔄RCA pass-thru & Hi/Low level inputs

🎚️On-board Punch EQ +18dB boost

B/.1908

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Description

🎵 Feel the Punch, Own the Bass – Power Your Ride Like a Boss!

CLEAN CRISP SOUND - Variable 12 dB/Oct Butterworth crossovers and C.L.E.A.N. setup ensure distortion-free, pure bass.
ROCKFORD RELIABILITY - Built tough with a full 1-year warranty—join thousands of audiophiles who trust this iconic brand.
SEAMLESS INTEGRATION - RCA inputs accept both Hi and Low level signals—no extra converters needed, simplifying your setup.
UNMATCHED BASS POWER - Delivers a thunderous 1000 Watts at 1-Ohm for earth-shaking subwoofer performance.
PRECISION BASS CONTROL - On-board Punch EQ with +18dB boost at 45Hz lets you tailor your low-end punch like a pro.

The Rockford Fosgate Punch P1000X1BD is a compact yet powerful Class-BD mono amplifier designed exclusively for subwoofers and mid-bass speakers. It delivers up to 1000 Watts at 1-Ohm, featuring advanced bass-boost EQ, versatile RCA inputs, and precision crossovers for clean, distortion-free sound. With Rockford Fosgate’s legendary build quality and a 1-year warranty, this amp is the ultimate upgrade for serious car audio enthusiasts craving deep, impactful bass.

Specifications

ASIN	B00BF6HY8E
Best Sellers Rank	#176,478 in Electronics ( See Top 100 in Electronics ) #386 in Car Multichannel Amplifiers
Brand	Rockford Fosgate
Brand Name	Rockford Fosgate
Customer Reviews	4.7 out of 5 stars 342 Reviews
Global Trade Identification Number	00780687332495
Included Components	A Amplifier With Standard Accessories
Item Dimensions	5.8 x 12 x 19.3 inches
Item Weight	12 Pounds
Item dimensions L x W x H	5.8 x 12 x 19.3 inches
Manufacturer	Rockford Fosgate
Maximum Output Power	1000
Model	P1000X1BD
Mounting Type	Car Mount
Number of Channels	1
Output Power	1000 Watts
Package Type Name	Retail Packaging
Part Number	P1000X1BD
UPC	780687332495 613815602835
Unit Count	1.0 Count
Voltage	12 Volts
Warranty Description	Famous Rockford Fosgate build quality with a full 1-year warranty

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