Rockford Fosgate R2SD4-10 Prime 10" R2 4-Ohm DVC Shallow Subwoofer

10" Shallow 4-Ohm DVC Subwoofer 200W RMS, Elevated Shallow Motor Assembly, Mica-Injected Polypropylene Cone, StampCast Basket. Sealed Enclosure Only.

Product Overview

The Rockford Fosgate Prime R2SD4-10 is a 10" 4-Ohm Dual Voice Coil (DVC) shallow subwoofer rated at 200W RMS the 4-Ohm variant of the R2SD shallow platform. The elevated motor structure reduces mounting depth for installation in under-seat, behind-seat, and other tight-space enclosures. Optimised for sealed enclosures only. The 4-Ohm DVC provides wiring options of 2-Ohm (parallel), 8-Ohm (series), or 4-Ohm per coil for bi-amplification broader amplifier compatibility than the 2-Ohm DVC R2SD2-10 variant. Sold as an individual unit.

Construction is consistent with the R2SD platform: mica-injected polypropylene cone, anodized aluminium voice coil former, linear spider with embedded 16 AWG tinsel leads, StampCast basket with integrated spider venting, 12 AWG compression terminals, and integrated PVC trim ring.

Key Specifications

• Subwoofer size: 10 inch (shallow)
• Voice coil configuration: Dual Voice Coil (DVC)
• Impedance: 4-Ohm per coil (2-Ohm parallel / 8-Ohm series / 4-Ohm biamp)
• Power handling (RMS): 200W (confirmed)
• Peak power: Not specified — confirm with Rockford Fosgate
• Motor assembly: Shallow (elevated motor structure)
• Sensitivity: Not specified — confirm with Rockford Fosgate
• Frequency response: Not specified — confirm with Rockford Fosgate
• Xmax: Not specified — confirm with Rockford Fosgate
• Mounting depth: Shallow — exact depth not confirmed (confirm with Rockford Fosgate)
• Voice coil former: Anodized aluminium
• Cone: Mica-injected polypropylene
• Surround: Not specified — confirm with Rockford Fosgate
• Spider: Linear with embedded 16 AWG tinsel leads
• Basket: StampCast with integrated spider venting
• Input terminals: 12 AWG compression terminals
• Trim ring: Integrated PVC
• Enclosure compatibility: Sealed only ✓
• Cutout diameter: Not specified — confirm with Rockford Fosgate
• Sold as: Individual unit
• Weight: Not specified — confirm with Rockford Fosgate
• Warranty: Not specified — confirm with Rockford Fosgate

Features & Benefits

• Shallow Motor Assembly — Elevated motor structure reduces mounting depth for installation in locations where standard-depth subwoofers will not fit — under seats, behind rear seats, and custom shallow enclosures.
• Sealed Enclosure Only — Optimised for sealed enclosures exclusively. Do not use in a vented enclosure. Sealed loading produces tight, accurate bass output matched to the shallow motor's design parameters.
• 200W RMS Power Handling — Confirmed per the product description — appropriate for sealed shallow-mount applications with a matched mono amplifier.
• 4-Ohm DVC — Three Wiring Options:
  • 2-Ohm (parallel): Maximum amplifier output — compatible with most 2-Ohm-rated mono amplifiers
  • 8-Ohm (series): Suits amplifiers with minimum impedance requirements above 4-Ohm
  • 4-Ohm per coil (biamp): Each coil to a separate amplifier channel
• Mica-Injected Polypropylene Cone — Stiffened polypropylene for accurate, clean bass reproduction with moisture resistance.
• StampCast Basket with Integrated Spider Venting — Motor cooling via basket ventilation during sustained operation.
• Anodized Aluminium Voice Coil Former — Improved heat radiation for extended thermal capacity.
• 12 AWG Compression Terminals — Secure, low-resistance connection for 200W RMS operation.
• Linear Spider with Embedded 16 AWG Tinsel Leads — Consistent compliance; integrated leads reduce flex fatigue failure.

Technical Specs

Compatible With / Goes Well With

Enclosure — sealed only: The R2SD4-10 must be used in a sealed enclosure. Do not install in a vented (ported) enclosure.

Wiring configurations:

• 2-Ohm → both coils in parallel (most common)
• 8-Ohm → both coils in series
• 4-Ohm per coil → biamp

Pairs well with:

• Rockford Fosgate T1000-1BDCP or T1500-1BDCP mono amplifiers at the appropriate impedance
• A shallow sealed 10" enclosure to Rockford Fosgate's recommended volume specifications

Frequently Asked Questions

Can the R2SD4-10 be used in a ported enclosure?

No — the R2SD4-10 is optimised for sealed enclosures only. The shallow motor assembly is specifically matched to sealed box loading. A ported enclosure will not produce correct performance and may result in driver damage.

What are the wiring options for the 4-Ohm DVC?

The 4-Ohm DVC provides three configurations: 2-Ohm (both coils in parallel — most common), 8-Ohm (both coils in series), and 4-Ohm per coil for bi-amplification.

What mounting depth is required for the R2SD4-10?

The supplier confirms a shallow motor assembly but the exact mounting depth in millimetres is not stated. Pull the official Rockford Fosgate R2SD4-10 datasheet for the confirmed depth before purchasing for any tight-space installation.

What sealed enclosure volume is recommended?

Enclosure volume for the sealed configuration is not confirmed in the supplier data. Pull the official Rockford Fosgate R2SD4-10 datasheet for the recommended net internal volume.

What amplifier power is appropriate?

200W RMS at the selected wiring impedance. Confirm the amplifier's RMS output at 2-Ohm (parallel) before purchasing.