Rockford Fosgate R1S4-10 Prime 10” R1 4-Ohm SVC Subwoofer

10" 4-Ohm Single Voice Coil Subwoofer 200W RMS, Sealed and Vented Enclosure Compatible, Vented Pole Piece, Ferrite Magnet, Spring-Loaded Push Terminals.

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Product Overview

The Rockford Fosgate Prime R1S4-10 is a 10" 4-Ohm Single Voice Coil (SVC) subwoofer rated at 200W RMS the entry-level subwoofer from Rockford Fosgate's Prime R1 series. Optimised for both sealed and ported (vented) enclosures, it provides flexible installation compatibility across a wide range of standard subwoofer box configurations.

Construction highlights include a fibre-reinforced painted paper-pulp cone, laser-etched aluminium dust cap, high-temperature copper voice coil on an aluminium former, high-grade Y30 ferrite magnet, bumped backplate with vented pole piece for improved thermal and mechanical power handling, and spider cavity venting for airflow. Integrated spring-loaded nickel-plated push terminals and an ABS decorative trim ring simplify wiring and installation. Sold as an individual unit.

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Key Specifications

• Subwoofer size: 10 inch
• Voice coil configuration: Single Voice Coil (SVC)
• Impedance: 4-Ohm
• Power handling (RMS): 200W (confirmed)
• Peak power: Not specified — confirm with Rockford Fosgate
• Sensitivity: Not specified — confirm with Rockford Fosgate
• Frequency response: Not specified — confirm with Rockford Fosgate
• Xmax: Not specified — confirm with Rockford Fosgate
• Voice coil diameter: Not specified — confirm with Rockford Fosgate
• Voice coil material: High-temp copper winding, aluminium former
• Magnet: High-grade Y30 Ferrite
• Cone: Fibre-reinforced painted paper-pulp
• Surround: Compressed foam (high durability)
• Dustcap: Laser-etched aluminium
• Spider: Fatigue-resistant poly-cotton with integral woven leads
• Frame: Proprietary powder-coated stamped steel with spider cavity venting
• Backplate: Bumped with vented pole piece
• Input terminals: Integrated spring-loaded nickel-plated push terminals
• Trim ring: Integrated ABS decorative trim ring
• Enclosure compatibility: Sealed and vented (ported)
• Mounting depth: Not specified — confirm with Rockford Fosgate
• 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

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Features & Benefits

• 200W RMS Power Handling — 200W RMS is confirmed, providing clear amplifier matching guidance for standard single-channel monoblock amplifier pairings.
• Optimised for Sealed and Vented Enclosures — The R1S4-10 is confirmed to perform well in both sealed (acoustic suspension) and vented (ported or bass reflex) enclosure designs — giving builders flexibility in box construction. Sealed enclosures typically produce tighter, more accurate bass; vented enclosures typically produce more output at the tuning frequency with greater efficiency.
• Bumped Backplate with Vented Pole Piece — The bumped backplate increases the gap between the spider and backplate, allowing greater linear cone excursion. The vented pole piece allows air trapped beneath the dust cap to escape at high excursion — preventing an internal air spring that would limit cone travel and cause compression at high output levels.
• Spider Cavity Venting — Additional ventilation openings in the basket allow airflow around the spider, further reducing thermal compression and improving sustained power handling.
• High-Temp Copper Voice Coil on Aluminium Former — The aluminium former conducts heat away from the copper voice coil winding more effectively than a paper or Kapton former — extending thermal capacity at sustained output levels.
• High-Grade Y30 Ferrite Magnet — Y30 is a specific ferrite magnet grade — the motor provides the driving force for the voice coil and cone assembly. Ferrite magnets are a reliable, cost-effective choice for a value-tier subwoofer application.
• Laser-Etched Aluminium Dust Cap — The aluminium dust cap with laser-etched branding dissipates heat conducted upward from the voice coil former, assisting with thermal management. The laser etching provides a professional appearance.
• Fibre-Reinforced Paper-Pulp Cone — Paper-pulp cone reinforced with fibre for improved rigidity and moisture resistance over plain paper — producing accurate bass reproduction with the natural damping characteristics of paper.
• Fatigue-Resistant Poly-Cotton Spider with Integral Woven Leads — The spider provides the restoring force for the voice coil and maintains its centring under excursion. Integral woven leads are woven directly into the spider fabric — eliminating the solder joints and loose lead wires that are a common failure point in subwoofers at sustained high power.
• Spring-Loaded Nickel-Plated Push Terminals — Spring-loaded push terminals allow tool-free wiring connection and disconnection — the wire is inserted and gripped by the spring mechanism. Nickel plating resists corrosion.
• Integrated ABS Decorative Trim Ring — The built-in trim ring provides a finished, professional appearance at the subwoofer mounting surface.

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Technical Specs

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Compatible With / Goes Well With

Suitable enclosure types:

• Sealed (acoustic suspension) enclosures — tighter, more accurate bass
• Vented (ported/bass reflex) enclosures — higher efficiency at the tuning frequency

Pairs well with:

• Rockford Fosgate T1000-1BDCP, T1500-1BDCP, or T2500-1BDCP mono amplifiers — confirm RMS output matches the 200W RMS rating
• A standard sealed or ported 10" enclosure designed to the Rockford Fosgate recommended box volume specifications (confirm from the R1S4-10 datasheet)

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Frequently Asked Questions

What does Single Voice Coil (SVC) mean?

An SVC subwoofer has one voice coil wound on a single former. At 4-Ohm, the subwoofer presents a 4-Ohm load to the amplifier. SVC subwoofers have one wiring configuration per unit — for a 4-Ohm SVC, the subwoofer presents 4-Ohm to one amplifier channel. Two 4-Ohm SVC subwoofers wired in parallel to one amplifier channel present a 2-Ohm load; wired in series they present 8-Ohm.

Is the R1S4-10 better in a sealed or vented enclosure?

The R1S4-10 is optimised for both. Sealed enclosures typically produce tighter, more controlled bass with a gradual roll-off below the tuning point — well suited to music where bass accuracy is the priority. Vented enclosures typically produce more output at the box tuning frequency and are more efficient — well suited to higher output levels and music genres where maximum bass impact is the priority. Rockford Fosgate recommends specific enclosure volumes for each type — confirm from the official R1S4-10 datasheet.

What amplifier power is correct for the R1S4-10?

The R1S4-10 is rated at 200W RMS. Match the amplifier's rated RMS output at 4-Ohm to no more than the subwoofer's RMS rating for sustained operation. Consult the Rockford Fosgate amplifier range for compatible mono amplifiers.

What is the purpose of the vented pole piece?

The vented pole piece is a hole through the centre of the motor's pole piece that allows air trapped inside the dust cap cavity to escape as the cone moves in and out at high excursion. Without ventilation, the trapped air creates an air spring that limits cone travel — reducing maximum output and causing compression. The vented pole piece eliminates this restriction.

What enclosure volume is recommended for the R1S4-10?

Recommended enclosure volumes for sealed and vented configurations are not confirmed in the supplier data. Pull the official Rockford Fosgate R1S4-10 datasheet for the recommended net internal volume, vent dimensions, and tuning frequency for each enclosure type.