Pay in installments of $17.50 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Rockford-Fosgate Prime R1S4-12Features: 12" Single 4 Ohm Prime Series Subwoofer Power Handling: Peak: 400 watts RMS: 200 watts Recommended power range: 100 200 watts RMS CEA 2031 compliant Verified with Klippel speaker certification 12 AWG compression terminals Fiber reinforced painted paper pulp woofer cone High temperature 2" voice coil Laser etched aluminum dustcap High durability compressed foam surround Proprietary powder coated stamped steel frame with spider cavity venting
Features:
- 12" Single 4-Ohm Prime Series Subwoofer
- Power Handling:
- Peak: 400 watts
- RMS: 200 watts
- Recommended power range: 100 - 200 watts RMS
- CEA-2031 compliant
- Verified with Klippel speaker certification
- 12 AWG compression terminals
- Fiber reinforced painted paper-pulp woofer cone
- High temperature 2" voice coil
- Laser-etched aluminum dustcap
- High durability compressed foam surround
- Proprietary powder coated stamped steel frame with spider cavity venting
- Fatigue resistant poly-cotton spider with integral woven leads
- High temperature copper voice coil with aluminum former
- Integrated ABS decorative trim ring
- Stamped mesh grille insert available: Rockford Fosgate R1G-12
- Mounting Depth: 5.0"
- Cutout Diameter: 10.94"
- Magnet Weight: 52.47oz
- Frequency Response: 22 - 250 Hz
- Xmax: 6.3mm
- Sensitivity: 87 dB @ 1 watt / 1 meter
- Optimized for sealed enclosures
- Recommended Sealed Enclosure: 0.70 - 1.80ft³
- Matching Amplifiers: (one subwoofer)
- Rockford Fosgate PBR500X1, @4ohms
✔ Preferred Match - Rockford Fosgate P300X1, @4ohms
- Matching Amplifier: (two subwoofers)
- Rockford Fosgate P500X1BD, Parallel @2ohm
✔ Preferred Match - Rockford Fosgate P300X1, Parallel @2ohm
Specifications:
- Subwoofer Series: Prime R1 (Rockford Fosgate)
- Subwoofer Size: 12"
- Peak Power Handling: 400 watts
- RMS Power Handling: 200 watts
- Voice Coil(s): Single
- Impedance (Per Voice Coil): 4 ohms
- Voice Coil Diameter: 2"
- Frequency Response: 22 - 250 Hz
- Sensitivity: 87 dB
- Xmax (millimeters): 7 mm
- Subwoofer Design: Round / Circle
- Main Cone Color: Black
- Woofer Composition: Fiber Impregnated Cone
- Woofer Surround: Foam
- Magnet Structure: Single Stacked
- Re-Cone Kit Available: No
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 12 reviews
Sort
Product Reviews
★★★★★ 4
Happy happy
Not bad kind of pricey that's all definitely would buy from them again
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 4, 2026
★★★★★ 5
Heavy-Duty 4 AWG Cable With Flexible Insulation
Size: 10ft, Color: 4awg
I am satisfied with this 4 AWG cable. The insulation coating is soft, and the cable itself is very pliable, making it easy to bend and route into the configuration needed for installation. Despite the flexibility, it still feels like a heavy-duty cable designed to handle demanding applications.
I am using this cable to provide the necessary amperage to start the generator on my trailer, and it performs as expected. I also like that the wire gauge and cable properties are clearly printed along the side of the insulation, making identification easy during installation or future maintenance.
The cable arrived in good condition with no obvious odor from the insulation or packaging. Overall, this appears to be a quality heavy-duty cable that is flexible, easy to work with, and suitable for high-current applications.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
True copper battery cables that are high quality
Size: 10ft, Color: 4awg
I love having heavy duty cable on hand for my cars. It's so nice to be able to make your own starter and alternator cables when restoring cars.
These cables are 100% copper, not CCA (copper clad aluminum) like many others are. Copper is far superior for conductivity and handling higher loads.
The rubber on the cable is thick and yet very flexible..it's clearly marked and seems very durable. I like to use a hydraulic crimping tool and then add marine grade heat shrink tubing with the adhesive inside of it to keep it as weatherproof as possible.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
★★★★★ 5
Ofc 1/0
Color: Black, Size: 25 Feet
Absolutely was as described..it's true welding lead...at least what I was sent, yes it was packaged in their packaging and logo.. TRUE 1/0 OFC!!! used as power for my system in my car
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 7, 2025
★★★★★ 5
Great cable
With no other reviews I was a bit hesitant to buy this cable at first. I've seen so many other brands and sellers that sell cable that is half the gauge they claim. Or cable that is not totally copper and has tin or other poor metals in it. Especially at this low price I worried. I went ahead and bought some anyway though and figured I would chance it. For the amount of money I'd be saving it was worth it. If it wasn't as advertised I could just return it anyway.
It arrived in a couple days. It is truly 1/0 AWG, and it is 100% copper. Strands packed dense but still flexible. Comes in a nice carry case. I crimped and soldered on some ends. Everything looks great and is working great. Would definitely recommend and would buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2016
recommand products
Warhammer 40k - Kill Team: Wrecka Krew
69.00
DC Multiverse - Justice League: Generation Lost - Rocket Red Brigade 7-Inch Scale Action Figure
32.00
Hot Wheels: Star Wars Starships - Onyx Cinder
21.00
G.I. Joe - Classified Series: (177) Seymour Sci-Fi 6-Inch Action Figure
30.00
Star Wars: Black Series: The Clone Wars - Asajj Ventress 6-Inch Figure
34.00