Hertz Cento CS 300 S2 Sub 12 Inch 30cm 300mm Car Subwoofer 2ohm 350w RMS

The Hertz Cento CS 300 S2 is a 12 inch (300 mm) car subwoofer with a single 2 ohm voice coil, rated at 350W RMS and 700W peak, from Hertz's Cento range.

This listing is the 2 ohm version. The Hertz Cento CS 300 is also available in 4 ohm (CS 300 S4). The optional CG 300 metal mesh grille is sold separately.

Key specifications

• Size: 300 mm (12 in.)
• Power handling: 350W RMS, 700W peak
• Impedance: 2 ohm single voice coil
• Voice coil: 35 mm (1.38 in.), six-layer copper
• Sensitivity: 86.5 dB SPL
• Xmax: 12.5 mm
• Fs: 25 Hz
• Recommended enclosure: sealed, from 32 litres
• Cone: polypropylene

Hertz Cento CS 300 S2

300 (12) mm (in.) | Subwoofer | 700W peak | 2 ohm

Designed for compact sealed enclosures

The CS 300 S2 is engineered to deliver powerful bass from sealed enclosures starting at just 32 litres. The 2 ohm single voice coil suits amplifiers that are stable into low impedances and enclosures housing more than one subwoofer.

The compact magnetic group, reduced depth and absence of a rear decompression hole allow the enclosure to be shaped closely around the subwoofer — giving maximum installation flexibility across virtually any vehicle.

A six-layer copper voice coil wound on a high thermal resistance glass fibre former uses a dedicated cooling system to keep operating temperature in check during extended high-volume listening. An air channel formed by the spider support directs airflow towards venting holes in the basket, reducing turbulence and acoustic distortion at high excursions.

• Electroacoustic design optimised for sealed enclosures from 32 litres.
• Fluid dynamic optimisation system reduces acoustic distortion caused by air compression at high excursions.
• Polypropylene cone and dust cap geometry engineered through FEM simulations for low-frequency distortion reduction.
• 35 mm 2 ohm voice coil wound on six layers of pure copper on a high thermal resistance glass fibre support.
• Magnetic group geometry optimised with proprietary software for high undistorted SPL at high excursions.
• Compact size and no decompression hole make it ideal for custom-shaped enclosures.
• Terminal block with solid push contacts accepts cables up to 8 AWG — low wiring resistance, easy connection in multi-subwoofer installations.
• Rubber-protected magnetic assembly and high-strength ABS plastic gasket for optional grille fitment.

The cone geometry, suspension and spider were designed using FEM (Finite Element Method) simulations to ensure control and low distortion at high mechanical excursions.

The optional CG 300 grille in robust black metal mesh protects the subwoofer and features the Hertz diamond aluminium logo for a clean, integrated finish.