Hertz CS 300 S2 12 Inch 700W Peak 2 Ohm Car Subwoofer
If you want deep, clean bass without sacrificing boot space, the Hertz CS 300 S2 is built for exactly that. This 12-inch subwoofer from the Cento Series delivers 700W peak power in a compact, vent-free design that fits neatly into custom enclosures from just 32 litres — giving you serious low-end performance without the bulk.
What is the Hertz CS 300 S2?
The CS 300 S2 is a 12-inch (300 mm) car subwoofer from Hertz's Cento Series, designed for enthusiasts who want powerful, accurate bass reproduction in a space-efficient package. It runs on a 2 Ohm single voice coil configuration, making it compatible with a wide range of amplifiers and multi-subwoofer setups. The sealed, vent-free basket design means you can build a custom enclosure that wraps tightly around the driver — ideal for hatchbacks, sedans, and SUVs where space is at a premium.
Why Choose the Hertz CS 300 S2?
- ✅ 700W peak / 350W RMS — serious output from a compact driver
- ✅ 2 Ohm impedance — broad amplifier compatibility, including multi-sub wiring
- ✅ No rear decompression hole — enclosures can be shaped tightly around the sub
- ✅ FEM-simulated cone and spider — engineered for low distortion at high excursion
- ✅ 6-layer voice coil — handles extended high-volume listening without overheating
- ✅ Accepts 8 AWG cable — low wiring resistance, easy multi-sub installation
- ✅ Optional CG 300 grille available — clean, finished look with Hertz diamond logo
Key Features
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Size: 300 mm (12 inches) — a full-size subwoofer that fits in compact custom boxes
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Power: 350W RMS / 700W Peak — enough headroom for demanding listening sessions
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Impedance: 2 Ohm — works with most aftermarket amplifiers and parallel wiring configurations
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Voice Coil: 35 mm, 6-layer pure copper — wound on a high thermal resistance glass fibre former for sustained performance
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Cone: Polypropylene — rigid, lightweight, and resistant to humidity and temperature changes
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Xmech: 16.5 mm (0.65 in.) — generous mechanical excursion for deep, controlled bass
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Magnet: High-density flux ferrite — 134 × 45 × 34 mm, optimised for high undistorted SPL
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Terminal block: Solid push connectors, up to 8 AWG — low resistance, quick and secure wiring
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Gasket: High-strength ABS plastic — allows optional grille fitment for a clean finish
Advanced Technologies
Fluid Dynamic Optimisation System: The spider support doubles as an air duct, channelling airflow towards venting holes in the basket. This actively reduces turbulence and the acoustic distortions that typically occur when air compresses at high cone excursions — the result is cleaner, more accurate bass even when you push the volume.
FEM-Simulated Cone and Suspension: Hertz engineers used Finite Element Method (FEM) simulations to design the cone geometry, surround, and spider together as a system. This means every component is tuned to work in harmony, keeping distortion low and control high even at the limits of the driver's travel.
Six-Layer Voice Coil with Thermal Management: The 35 mm voice coil is wound in six layers of pure copper on a glass fibre former that resists heat build-up. A dedicated cooling system keeps operating temperatures in check during long, loud listening sessions — protecting the driver and maintaining consistent performance.
Compact Sealed Basket Design: The absence of a rear decompression hole and the reduced magnetic group depth mean you can build an enclosure that hugs the subwoofer closely. Boxes from as little as 32 litres work well with the CS 300 S2, opening up installation options in vehicles where space is tight.
Benefits
- 🔊 Deep, powerful bass without a large enclosure
- 🚗 Fits hatchbacks, sedans, SUVs, and custom builds
- 🌡️ Stays cool during extended high-volume use
- 🎯 Low distortion at high excursion — bass stays tight and accurate
- 🔌 Easy wiring with 8 AWG push connectors — no fiddly terminals
- 🛡️ Rubber-protected magnetic assembly for long-term durability
- ✨ Optional CG 300 grille for a premium finished look
Who Should Buy the Hertz CS 300 S2?
- Car audio enthusiasts upgrading from factory speakers to a proper subwoofer setup
- Installers building space-efficient custom enclosures in smaller vehicles
- Anyone running a multi-subwoofer system who needs 2 Ohm compatibility
- Drivers who want clean, accurate bass — not just loud bass
- Hertz Cento Series fans looking to complete a matched system
Technical Specifications
| Specification |
Value |
| Model |
CS 300 S2 |
| Size |
300 mm (12 in.) |
| Power Handling — Continuous (RMS) |
350 W |
| Power Handling — Peak |
700 W |
| Impedance |
2 Ohm |
| Voice Coil Diameter |
35 mm (1.38 in.) |
| Voice Coil Layers |
6 (pure copper) |
| Voice Coil Former |
High thermal resistance glass fibre |
| Cone Material |
Polypropylene |
| Magnet Type |
High-density flux ferrite |
| Magnet Size (D × d × h) |
134 × 45 × 34 mm (5.28 × 1.77 × 1.34 in.) |
| Xmech |
16.5 mm (0.65 in.) |
| Minimum Enclosure Volume |
32 litres |
| Terminal |
Solid push connectors, up to 8 AWG |
| Gasket |
High-strength ABS plastic |
| Weight |
4.844 kg (10.68 lb.) |
| Filter Component |
Subwoofer (no crossover) |
| Optional Grille |
CG 300 (black metal mesh) |
Why Choose Dolphin Accessories?
- ✅ 100% Genuine Products — every item is sourced directly from authorised distributors
- ✅ Expert Guidance — our team helps you choose the right gear for your car and amplifier
- ✅ Pan-India Delivery — fast, reliable shipping to every corner of the country
- ✅ Secure Packaging — your subwoofer arrives safely, every time
- ✅ After-Sales Support — we're here if you need help with installation or warranty
- ✅ Trusted by Enthusiasts — thousands of happy customers across India
Frequently Asked Questions
Q: What is the RMS power of the Hertz CS 300 S2?
A: The CS 300 S2 handles 350W RMS continuously, with a peak power rating of 700W.
Q: What impedance is the Hertz CS 300 S2?
A: It is a 2 Ohm single voice coil subwoofer, which makes it compatible with most aftermarket amplifiers and easy to wire in parallel multi-sub configurations.
Q: What size enclosure does the Hertz CS 300 S2 need?
A: The CS 300 S2 is optimised for sealed enclosures starting from 32 litres, making it one of the more compact-friendly 12-inch subwoofers available.
Q: Does the Hertz CS 300 S2 need a ported or sealed box?
A: Hertz has optimised the CS 300 S2 for sealed enclosures. Its vent-free basket design also allows the box to be shaped tightly around the driver for space-saving custom builds.
Q: What amplifier should I use with the Hertz CS 300 S2?
A: Any amplifier capable of delivering 350W RMS into a 2 Ohm load will work well. A mono block (monoblock) amplifier rated between 300W and 700W RMS at 2 Ohm is the ideal match.
Q: Is the Hertz CS 300 S2 compatible with a multi-subwoofer setup?
A: Yes. The 2 Ohm impedance and 8 AWG-capable terminal block make it straightforward to wire multiple CS 300 S2 units together.
Q: What is the voice coil size on the Hertz CS 300 S2?
A: The voice coil is 35 mm in diameter, wound in six layers of pure copper on a high thermal resistance glass fibre former.
Q: Does the Hertz CS 300 S2 come with a grille?
A: The subwoofer includes an ABS plastic gasket for grille mounting. The CG 300 grille (black metal mesh with Hertz diamond logo) is available as an optional accessory.
Q: What cars is the Hertz CS 300 S2 suitable for?
A: It suits any car where you can fit a 12-inch subwoofer enclosure — hatchbacks, sedans, SUVs, and MPVs. Its compact sealed design makes it especially practical for smaller vehicles.
Q: Is the Hertz CS 300 S2 a genuine Hertz product?
A: Yes. Dolphin Accessories sells only 100% genuine Hertz products sourced from authorised distributors, backed by the manufacturer's warranty.
Q: What is the weight of the Hertz CS 300 S2?
A: The subwoofer weighs 4.844 kg (10.68 lb.).
Q: How do I connect the Hertz CS 300 S2?
A: The terminal block uses solid push connectors that accept cables up to 8 AWG. Simply strip your speaker cable, push it into the terminal, and you're done — no tools required for the connection itself.
