Best Butyl Rubber Surround

Polk MM 1242 SVC 12" 4-ohm Component Subwoofer

• titanium-plated composite cone with butyl rubber surround.
• power handling: 420 watts RMS (1260 watts peak).

Memphis Audio 15-PRX1544 15 Dual 4-ohm Component Subwoofer

Memphis Audio SRX1244

• Impedance: Selectable 2 Ohm / 4 Ohm | Sensitivity: 85.8dB (2 Ohm) / 86.2dB (4 Ohm).
• Polypropylene Cone | Double Stitched Butyl Rubber Surround.

Memphis Audio PRX1024 Power Reference 10 Selectable 2-Ohm / 4-Ohm Subwoofer

• Impedance: Selectable 2 Ohm / 4 Ohm | Sensitivity: 84dB (2 Ohm) / 84.5dB (4 Ohm).
• Polypropylene Cone | Double Stitched Butyl Rubber Surround.

Focal ACX 165S 6-1/2" Slim 2-Way Speakers

• 6-1/2" slim polypropylene woofer cone with butyl rubber surround.
• handles up to 60 watts RMS (120 watts peak).

Kenwood Excelon KFC-XW1200F 12in Mount Subwoofer Car

• Carbon-glass fiber composite Cone with butyl rubber surround.

GRS 6PR-8 6-1/2 Poly Cone Rubber Surround Woofer

• Polypropylene cone for perfect balance of stiffness, mass, and self-damping.
• Butyl rubber surround ensures high excursion and long term durability.
• Stamped steel frame keeps components in perfect alignment.
• Optimized motor features high-energy ceramic ferrite magnet, vented pole piece.

Memphis Audio PRX1524 15 2Ω or 4Ω Selectable Subwoofer

• DVVC Direct Voice Coil Cooling technology.

Powerbass L2-700 7' Midrange Speakers 2Ω

• Grey Injection Molded PP/Carbon Fiber Cone .

Pyle PLW15RD 15-Inch Red Cone High Performance Woofer

• Blue CD Wave Electro-Plated PolyProPylene Cone - Wide Butyl Rubber Surround with New Pattern.
• Blue Plastic Basket - Bumped & Vented Extended Pole Piece.
• 2.5-Inch High Temperature Kapton Voice Coil - 4 Ohm Impedance.