Hertz Cento CS 300 S4 12″ 30cm 4ohm Subwoofer Sub 350w RMS


The new CS 300 s4 Cento subwoofer is the perfect enhancement to every sound system, to fully enjoy the authentic Hertz Sound Experience! 

The R & D team, always at the forefront in the search for innovative solutions, with unfailing effort, succeeded in obtaining very powerful bass frequencies from ultra-compact sealed enclosures, optimizing all the electroacoustic parameters according to the target set: high performance with boxes starting from 32 l. for the 30 cm (12 in.) CS 300 model.


The 4Ω single voice coil configuration offers maximum compatibility with any type of amplification and an enclosure that houses more than one subwoofer.

The reduced depth, the compact magnetic group and the lack of rear decompression hole allow the box to be shaped around the subwoofer obtaining a depth close to the one of a speaker for maximum freedom of installation on any type of car.

The special cooling system of the six-layer voice coil keeps the operating temperature within an optimal range even in case of extended listening sessions at high acoustic pressure.

An innovative system of dynamic fluid optimization and turbulence reduction, obtained thanks to the spider support acting as an air conduct towards the venting holes on the basket, drastically reduces the acoustic distortions generated by the air compression at high excursions.


Size mm (in.) 300 (12)
Power Handling – Continuous W 350
Power Handling – Peak W 700
Impedance Ohm 4
No Filter Component SUBWOOFER
Voice Coil Ø 35 (1.38)
Magnet size D x d x h mm (in.) 134 x 45 x 34 (5.28 x 1.77 x 1.34)
Weight of one component kg (lb.) 4,844 (10.68)
Magnet High density flux ferrite
Cone Polypropylene
Xmech mm (in.) 16,5 (0.65)