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Hertz UNO S 300 S4 12" 30cm Car Audio Sub Component Subwoofer 4 Ohm 250w RMS

£99.99 Out of stock
Out of Stock
SKU: 90864MPN: S300 S4

HERTZ S 300 S4 Subwoofer

300 (12) mm (in.) | Uno subwoofer | 1000 W | 4 Ohm

The 30 cm (12’) S 300 S4 car audio subwoofer, designed to obtain powerful deep bass in any installation, is the last addition to the Uno product range.

Thanks to the efficiency of 89.5 dB, achieved using lightweight materials such as paper for the cone and high density foam for the suspension, the component provides the ability to easily reach high sound pressures in the car compartment.

The exclusive patented V-cone® system ensures maximum stiffness through wide excursions, thus obtaining low undistorted frequencies at high volume.

The S 300 S4 is optimized for both reflex and sealed enclosures. The resonance frequency is as low as 33 Hz, a particularly low value considering the speaker’s high efficiency. This figure proves the degree of commitment of the Hertz R&D team to the project, aiming at maximizing the output quality and level. A pre-assembled gasket in ABS refines the product’s cosmetics ensuring an appealing look once installed.

V-CONE®

The exponential profile gets very close to the perfect one, providing exceptional dispersion.

  • Very high efficiency, superior power handling;
  • V-cone® with pressed paper membrane for maximum lightness;
  • High excursion foam surround combining high sensitivity and deep bass response;
  • Pure copper voice coil, wound on aluminium former, for exceptional thermal and mechanical capacity;
  • FEM refined motor structure employing low-carbon content steel and high-density flux ferrite magnet;
  • Designed to be used in small sealed or reflex box;
  • ABS gasket provided for aesthetically pleasant installation.
Specification
Power Handling- Continuous W    250
Power Handling- Peak W    1000
ImpedanceOhm    4
Voice CoilØ    38 (1.5)
Magnetsize D x d x h mm (in.)    134 x 45 x 34 (5.28 x 1.77 x 1.34)
Weightof one component kg (lb.)    3 (6.61)
Magnet   High density flux ferrite
Cone   Painted Pressed Paper Pulp
More specs
  • Size mm (in.)    300 (12)
  • No Filter Component    Uno subwoofer
  • Xmech mm (in.)    ±15,1 (0.59)
  • Xmax mm    9,1
  • Re Ohm    3,6
  • Fs Hz    33
  • Vas I    82,2
  • Mms g    112
  • Cms mm/N    0,21
  • BL T*m    11,3
  • Qts    0,6
  • Qes    0,65
  • Qms    7,8
  • Spl dB    89,5
What's Included
  • 12" Subwoofer
  • Screws
  • Speed clips
  • Owner's manual
  • Template on box
FAQs
Q: Do I need an amplifier for this subwoofer?

A: Yes, unless it is an active (powered) subwoofer with a built-in amplifier. Passive subwoofers need an external amplifier matched to the RMS power and impedance shown in the Specification tab.

Q: What size enclosure does this subwoofer need?

A: The recommended enclosure volume is listed in the Specification tab where the manufacturer provides it. As a rule, sealed enclosures give tighter, more accurate bass while ported enclosures deliver more output. Contact CEN if you would like a recommendation for your build.

Q: What does RMS power mean?

A: RMS is the continuous power a subwoofer can handle, and it is the number that matters when matching an amplifier. Peak or max figures describe short bursts only. Match your amplifier output to the RMS rating in the Specification tab.

Q: Sealed or ported enclosure - which should I choose?

A: Sealed boxes are compact and produce tight, controlled bass suited to sound quality builds. Ported boxes are larger and produce more output at low frequencies, suited to those who want maximum impact. Either works well when built to the recommended volume.

Q: Can CEN build or supply an enclosure and fit everything?

A: Yes. CEN supplies enclosures and offers professional installation from our Nottingham premises, including amplifier wiring. Contact us to discuss your build.

Product information

About the brand

Hertz

Hertz Electronics is particularly well-known for its high-quality car audio equipment. Their product lineup includes amplifiers, speakers, subwoofers, and complete audio systems that are designed to deliver superior sound clarity and performance. These products are popular among car enthusiasts who seek an enhanced in-car audio experience.

Hertz Electronics continues to build on its legacy of delivering exceptional audio experiences, making it a respected and trusted brand in the electronics industry.

Shop Hertz

Hertz Car Audio Range

Hertz produces high-performance car audio systems driven by research.Music fans who attend live concerts know well the emotions that low undistorted frequencies without dynamic compression can arouse.

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