Rockford Fosgate Prime R2SD2-12Prime 12" R2S 2-Ohm DVC Shallow Subwoofer
Variants
The Prime R2SD2-12 is a 12" shallow-mount subwoofer rated for 250 Watts RMS. Its 2‑Ohm dual voice coil provides flexible wiring options and an elevated motor structure reduces overall depth for installation in confined spaces.
Highlights
- 1 Year Warranty
- StampCast basket with integrated spider venting
- Mica reinforced polypropylene cone
- Integrated PVC trim ring
Key specs
Full specs- Power Handling (Watts RMS)
- 250 Watts RMS 500 Watts Max
- Nominal Impedance
- Dual 2-Ohm
- Sd (cm2)
- 534.8
- Speaker Connector
- Dual 12 AWG compression
- Voice Coil Diameter
- 2" (50 mm)
- Fs (Hz)
- 29.7
- Cutout Diameter
- 11.25 in. (285 mm)
- Woofer Displacement
- 0.039 cu. ft. (1.1 Liters)
Key specs
Full specs- Power Handling (Watts RMS)
- 250 Watts RMS 500 Watts Max
- Nominal Impedance
- Dual 2-Ohm
- Sd (cm2)
- 534.8
- Speaker Connector
- Dual 12 AWG compression
Highlights
Overview- 1 Year Warranty
- StampCast basket with integrated spider venting
- Mica reinforced polypropylene cone
Overview
The Prime R2SD2-12 is a 12" shallow-mount subwoofer rated for 250 Watts RMS. Its 2‑Ohm dual voice coil provides flexible wiring options and an elevated motor structure reduces overall depth for installation in confined spaces.
Best for
- Vehicles with limited mounting depth
- Installations where a sealed enclosure is preferred
- Systems that need flexible wiring configurations (2‑Ohm DVC)
Key points
- 12" shallow subwoofer — reduced depth for tight spaces
- 250 Watts RMS power handling
- 2‑Ohm dual voice coil for multiple wiring options
- Mica injected polypropylene cone for clean, accurate bass
- Stamp-cast basket with spider venting to help keep the motor cool
- Optimized for sealed enclosure use
Fit and use
Designed to fit where standard-depth subwoofers won't. Best used in sealed enclosures and wired according to the 2‑Ohm dual voice coil configuration that matches your amplifier and system impedance requirements.
What to know
This driver is rated at 250 Watts RMS; choose an amplifier and enclosure that match the RMS rating and the intended sealed enclosure application. The shallow design reduces mounting depth but does not change the need to verify available space and enclosure volume for your installation.
Resources
Product details and support Prime 12" R2S 2-Ohm DVC Shallow Subwoofer https://rockfordfosgate.com/products/details/r2sd2-12/ Show all Knowledge Base topics https://rockfordfosgate.zendesk.com/hc/en-us Email support http…
Key features
- 1 Year Warranty
- StampCast basket with integrated spider venting
- Mica reinforced polypropylene cone
- Integrated PVC trim ring
- Shallow Motor Assembly
- Optimized for sealed enclosures
- Linear spider with embedded 16 AWG tinsel leads
- Anodized aluminum voice coil former
- 12 AWG compression terminals
- Stitched Tinsel Leads
- Anodized Aluminum Voice Coil Former
- Klippel Verified
More info
Manufacturer details
When you have no space for bass, our Prime R2SD2-12 shallow subwoofer will satisfy your need. This 12” subwoofer handles 250 Watts RMS and the 2-Ohm Dual Voice Coil design lets you to wire them in various configurations.
Additional details
When you have no space for bass, our R2 12" shallow subwoofer can help satisfy your need for low frequency music. These drivers can fit in tight spaces due to an elevated motor structure that reduces speaker depth. Mica injected polypropylene cones make sure bass notes are clean and accurate. Stamp-cast baskets feature spider venting typically reserved for traditional depth mounted models to keep the motor cool! These shallow subwoofers are optimized for sealed enclosures.
Technologies
Stitched Tinsel Leads
Multipoint "periodic" stitched lead wire technique reduces the mass of each tinsel lead and spreads stress and
Anodized Aluminum Voice Coil Former
Two things generally happen when voice coils heat-up. They can generate heat close to the melt-down temp of their

Klippel Verified
To adorn the ‘Verified with Klippel’ mark, the qualifying company’s loudspeaker engineering personnel must be

CEA-2031
Power handling on Rockford Fosgate speakers conform to CEA-2031 industry standards. This means your speaker has
Specs
Specifications
| Power Handling (Watts RMS) | 250 Watts RMS 500 Watts Max |
| Nominal Impedance | Dual 2-Ohm |
| Sd (cm2) | 534.8 |
| Speaker Connector | Dual 12 AWG compression |
| Voice Coil Diameter | 2" (50 mm) |
| Fs (Hz) | 29.7 |
| Cutout Diameter | 11.25 in. (285 mm) |
| Woofer Displacement | 0.039 cu. ft. (1.1 Liters) |
| Qts | 0.66 |
| Qes | 0.71 |
| Qms | 9.00 |
| SPL (dB @ 1w/1m) | 85 |
| Qes | 0.71 |
| Qms | 9.00 |
| SPL (dB @ 1w/1m) | 85 |
| Vas (Liters) | 65.4 |
| Xmax (mm) | 10 |
| Re (Ohms) | 3.80 |
| Le (mH) | 4.2 |
| Magnet Weight (oz) | 51 oz. (1.45 kg.) |
| Subwoofer Type | Shallow |
| Voice Coil Type | Dual Voice Coil |
| Sealed Box Volume (Vb) | 0.9 cu. ft. (25.4 Liters) |
| Vented Box Volume (Vb) | 1.79 cu. ft. (50.6 Liters) |
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Installation resources
Wiring diagrams
Box Advisor

Sealed Enclosure
- Recommended volume
- 0.9 cu ft
- Volume range
- 0.75 cu ft to 1.25 cu ft
- Dimensions
- 20 in W x 16.75 in H x 7 in D
- F3
- 43 Hz
- Qtc
- 1.08
- Port / ID
- 47 in
- Subwoofer size
- 49 in
- Impedance
- 3 ohm
- Power handling (RMS)
- 250 W

Vented Enclosure
- Recommended volume
- 1.79 cu ft
- Volume range
- 1.5 cu ft to 2 cu ft
- Dimensions
- 20.5 in W x 16.5 in H x 13 in D
- F3
- 34 Hz
- Tuning (Fb)
- 40 Hz
- Port / ID
- 49 in
- Subwoofer size
- 49 in
- Impedance
- 3 ohm
- Power handling (RMS)
- 250 W
Support
Return Authorization
If you bought this product from Onkar Electronics, use the Contact Us page on the Onkar Electronics website and we will help with return authorization and warranty support. If you purchased it from another dealer, contact that authorized dealer first for return assistance.
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