




Hertz CS 300 S4
Cento Series 12" shallow-mount 4-ohm component subwoofer
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Hertz CS 300 S4 Cento Series 12" 700W Peak Power Handling at 4 Ohms, Single Voice Coil Component Car Subwoofer
The Hertz CS 300 S4 Cento Series 12" subwoofer is engineered to bring deep, powerful, and controlled bass to any car audio system. Designed with Hertz’s signature precision and electroacoustic innovation, it delivers impressive low-frequency performance even in ultra-compact sealed enclosures starting from just 32 liters. This makes it an ideal choice for installations where space is limited but high-impact bass is still essential.
With its 4-ohm single voice coil, the CS 300 S4 offers maximum compatibility with a wide range of amplifiers and multi-subwoofer setups. Its reduced mounting depth, compact magnet structure, and sealed-back design allow for versatile placement in nearly any vehicle. A six-layer voice coil with a dedicated cooling system ensures consistent performance during long, high-volume listening sessions by maintaining stable operating temperatures.
Built with durability and style in mind, the CS 300 S4 includes a high-resistance ABS trim gasket for a clean installation. For additional protection and sleek aesthetics, it supports the optional CG 300 metal mesh grille, complete with the signature Hertz-diamond logo. Whether upgrading your factory system or building a powerful custom setup, this subwoofer delivers tight, rich, and engaging bass that elevates the entire listening experience.
Key Features
-12" single voice coil subwoofer engineered for compact sealed enclosures
700W peak power handling for strong, impactful bass output
Optimized electroacoustic design delivers deep bass from boxes as small as 32 liters
4-ohm single voice coil ensures broad amplifier compatibility
Reduced mounting depth and compact magnet allow flexible installation
Six-layer voice coil with advanced cooling system prevents overheating during long sessions
High-resistance ABS trim gasket included for clean, secure installation
Compatible with the optional CG 300 metal mesh grille for added protection and premium appearance
What's Inside?
- Class-D Mono Subwoofer Car Amplifier
- Wiring Harness
- Mounting Hardware
- User Manual
What Others Are Saying
Eddie was great - SDCS installed a new head unit in my 2019 4Runner. He was honest in his opinions regarding the options I was considering. Pricing was also good - he was able to reuse some of my existing installation kit so I saved a bit of $$.Installation was clean and fast and he took the time to walk through the features before I left. Highly recommend!!
I had a great time at this shop! The staff really knows their stuff and took the time to explain the different options without pressure. Installation was quick, clean and professional. Everything looks factory and sounds amazing. The prices were fair and customer service was above and beyond. I highly recommend this place if you're looking for quality car audio and excellent service.
Those guys are really professional! I had a new Alpine floating head unit installed in my 2008 Mercedes, and it feels like a brand-new car. The installation was super clean. At first, the sound wasn’t the same as the factory stereo, but Kevin tuned it to be just as good—if not better—without adding any new amps. They even used my factory GPS antenna so I don’t have extra wires hanging out. On top of that, they matched the online price. Big thanks to Kevin and Eddie—highly recommended!
Kevin was awesome, he took his time and explained everything to me. I went in initially for a dash cam install and then decided to get a sub and amp installed as well. Both turned out great and will be returning if I need more work done.
Came In not knowing what to expect when suddenly my stereo stopped working. Spoke with Kevin in the front and after a VERY fast diagnosing they discovered my wiring was incorrect. After only about 45 minutes total being in the store I was on my way to the beach with a working stereo again! Thank you so much SDCARSTEREO
Highly recommend Kevin and the team at San Diego Car Stereo for any issues with aftermarket stereos. I bought a car with an aftermarket stereo and AC unit that wasn’t working properly—specifically, the heat wasn’t functioning due to an improper setup. I had several people look at it with no luck, and even the dealership basically refused to help because it was an aftermarket install. I came to Kevin and his team over the holidays feeling pretty defeated, but he was confident he could get the heat working before I headed back to a Colorado winter. Sure enough, he got it done.
FAQ
Do products purchased from San Diego Car Stereo come with a warranty?
Yes, all products come with a 1-year manufacturer warranty unless otherwise stated. This covers any defects excluding physical damage.
Are these products brand new?
Yes, every product we sell is 100% brand new, unused, and comes in original manufacturer packaging unless clearly marked otherwise.
Do you offer installation services?
Yes, we offer professional installation services at both of our San Diego Car Stereo locations. Our expert technicians have over 50 years of combined experience to install all of your car, marine, or offroad audio needs. Stop by or give us a call to schedule an appointment to get a quote in person.
