Rockford Fosgate P1S4-10 Punch 10" P1 4-Ohm SVC Subwoofer

10" 4-Ohm SVC Punch Subwoofer 250W RMS, Kevlar Fibre-Reinforced Paper Cone, VAST, Nomex® Voice Coil Collar, Extended Pole Piece, 10-AWG Nickel Push Terminals.

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Product Overview

The Rockford Fosgate Punch P1S4-10 is a 10" 4-Ohm Single Voice Coil (SVC) subwoofer rated at 250W RMS the 4-Ohm variant of the Punch P1 10" platform. The same Punch P1 construction as the P1S2-10 applies: Kevlar fibre-reinforced paper cone with VAST surround geometry, high-temperature voice coil with spun-laced Nomex® reinforcement collar, extended pole piece with bumped vented backplate, StampCast basket with integrated spider venting, 10-AWG nickel-plated push terminals, rubberized ABS trim ring with grille insert provision, and protective PVC textured magnet cover. Optimised for sealed and vented enclosures. Sold as an individual unit.

The 4-Ohm impedance suits a wider range of mono amplifiers than the 2-Ohm P1S2-10 particularly amplifiers with a minimum stable impedance above 2-Ohm.

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Key Specifications

• Subwoofer size: 10 inch
• Voice coil configuration: Single Voice Coil (SVC)
• Impedance: 4-Ohm
• Power handling (RMS): 250W (confirmed)
• Peak power: Not specified — confirm with Rockford Fosgate
• Surround technique: VAST (up to 25% increased cone area)
• Sensitivity: Not specified — confirm with Rockford Fosgate
• Frequency response: Not specified — confirm with Rockford Fosgate
• Xmax: Not specified — confirm with Rockford Fosgate
• Voice coil: High-temp, Nomex® reinforcement collar
• Cone: Kevlar fibre-reinforced paper
• Spider: Linear with embedded 16 AWG tinsel leads
• Basket: StampCast with integrated spider venting
• Pole piece: Extended
• Backplate: Bumped and vented
• Input terminals: 10-AWG nickel-plated push terminals
• Trim ring: Rubberized ABS (grille insert compatible)
• Magnet cover: Protective PVC textured
• Enclosure compatibility: Sealed and vented ✓
• 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

• 4-Ohm SVC — Broad Amplifier Compatibility — A 4-Ohm SVC presents a stable, universally compatible load to most mono subwoofer amplifiers. Two P1S4-10 units in parallel = 2-Ohm; in series = 8-Ohm.
• 250W RMS Power Handling — Confirmed 250W RMS — the same sustained rating as the P1S2-10.
• Kevlar Fibre-Reinforced Paper Cone — Kevlar aramid fibres reinforce the paper cone for improved stiffness and breakup resistance — delivering accurate, impact-filled bass at high output levels.
• VAST — Vertical Attach Surround Technique — Up to 25% increased effective cone area for improved bass output and efficiency.
• High-Temp Voice Coil with Nomex® Reinforcement Collar — Spun-laced Nomex at the voice coil-to-cone junction provides heat resistance and structural reinforcement at the highest mechanical and thermal stress point.
• Extended Pole Piece and Bumped Vented Backplate — Extended pole piece for increased Xmax; vented backplate to eliminate air spring compression at high excursion.
• 10-AWG Nickel-Plated Push Terminals — Larger gauge than the 12-AWG terminals on Prime R-series subwoofers — lower contact resistance for a 250W installation.
• StampCast Basket with Integrated Spider Venting — Motor cooling via basket ventilation during sustained operation.
• Rubberized ABS Trim Ring with Grille Provision — Accommodates an optional grille insert for cone protection.
• Protective PVC Textured Magnet Cover — Protects the magnet assembly during installation and use.
• Optimised for Sealed and Vented Enclosures — Both enclosure types confirmed.

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Technical Specs

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Compatible With / Goes Well With

Suitable enclosure types:

• Sealed — tight, accurate bass
• Vented — higher efficiency output

Wiring:

• 4-Ohm SVC — single 4-Ohm load per unit
• Two units in parallel = 2-Ohm; two units in series = 8-Ohm

Pairs well with:

• Rockford Fosgate T1000-1BDCP, T1500-1BDCP, or T2500-1BDCP mono amplifiers at 4-Ohm

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Frequently Asked Questions

What is the difference between the P1S4-10 and the P1S2-10?

Both are identical 10" Punch P1 subwoofers in the same construction. The only difference is impedance: the P1S4-10 is 4-Ohm SVC, the P1S2-10 is 2-Ohm SVC. Select based on your amplifier's stable impedance and preferred load. The 4-Ohm is more universally compatible with most amplifiers; the 2-Ohm suits amplifiers that produce their rated output at 2-Ohm.

What enclosure volume is recommended?

Not confirmed in the supplier data. Pull the official Rockford Fosgate P1S4-10 datasheet for sealed and vented volume recommendations.

What amplifier power is appropriate?

250W RMS at 4-Ohm. Confirm the amplifier's RMS output at 4-Ohm before purchasing.

Can a grille be added?

Yes — the trim ring accepts an optional grille insert. Confirm the compatible grille part number with Rockford Fosgate.

What does VAST do for this subwoofer?

VAST (Vertical Attach Surround Technique) attaches the surround vertically at the cone edge — increasing the effective radiating cone area by up to 25% at the same basket diameter. This produces more bass output and efficiency than a conventional surround attachment on the same frame size.