How to Improve Your Cars Music System With Speakers on eBay

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How to Improve Your Car's Music System With Speakers on eBay

Driving and listening to music is one of the great pleasures of modern life for many individuals. Whether someone enjoys hip hop or classical music, having a quality sound and music system in a vehicle can make a significant difference to daily existence. One of the best ways to improve a sound system in a car, truck, or SUV is to upgrade the speakers in the vehicle. By learning a bit about how speakers work, as well as the features of quality car speakers, consumers can find and purchase car speakers that make a definite improvement to a car's music system.

Consumers can leverage the diverse catalogue of options on the online marketplace eBay to improve their car sound systems. As an aggregator, eBay brings together multiple vendors to create one of the more extensive marketplaces for speaker systems and sound solutions. Learning about the purchasing process on the site is easy, and consumers can be driving around with upgraded sound in their vehicles in no time at all.

How Factory Car Speakers Work

In order to understand how to improve a car's music system, consumers should begin with an understanding of how a factory-installed car speaker system works. When an individual purchases the average car, it typically comes with factory standard speakers already installed. These speakers are sometimes referred to as OEM speakers, an abbreviation for original equipment manufacturer.

Factory standard speakers, by and large, are two-way component speakers that are sometimes referred to as full-range speakers. Full-range may sound impressive, but what it really means is that a single speaker uses one driver to address the different areas of the frequency spectrum for music. This provides an all-in-one solution that addresses the basic range of music, but it provides little sonic detail, clarity, or richness.

Power Handling and Factory Car Speakers

OEM speakers are not capable of handling the power surge from a high-performance system. Many are not even capable of handling the high volumes that the average listener might enjoy on occasion when driving down the road. This can lead to wear in the internal components of OEM speakers, and this causes them to buzz and rattle when handling higher power scenarios and higher volumes.

The Different Speaker Drivers Needed for Great Sound

A well-built car speaker system uses several different drivers or speakers to address each of the ranges in the frequency spectrum. By using separate units to address the bass, mids, and highs in music, a car music system is able to imbue the sound with much more clarity and diversity than OEM speakers.


Subwoofers are drivers that address the lowest audible range in the frequency spectrum. They give music a thumping bass sound and are essential drivers for those who enjoy a heavy bass. Subwoofers are popular with fans of hip hop, rap, and hard rock as they add confidence to the low range sound in these musical genres.

Subwoofers come in their own cabinets or enclosures and feature a woofer cone that transmits the sound. A supporting element known as a surround supports and stabilises the sound to reduce buzz and judder in a subwoofer's performance. The materials used in both the cone and the surround can make a significant difference to the quality and assertiveness of bass sound.


Woofers are often associated with subwoofers, but they actually address a slightly higher range on the frequency spectrum. While a subwoofer is used independently as a free-standing loudspeaker, woofers are often used in tandem with other drivers in component systems. Like a subwoofer, a woofer has a cone construction that produces the bass sound and a surround.

Midrange Drivers

Midrange drivers address what many consider to be the most important range of the frequency spectrum, the one that addresses the majority of musical instruments and the human voice. Midrange drivers are often cone constructions like a woofer, but they can also come in dome and horn compression designs. On occasion, midrange drivers are called 'squawkers', in keeping with the woofer and tweeter labels for low and high-range components.


Tweeters are the drivers used to address the highest audible range of sound. Tweeters can come in a dome design, a cone design, or a piezo design, which uses a piezoelectric crystal to transform the electrical sound signal into mechanical energy.

Understanding the Frequency Response Range

The following chart illustrates the various frequency response ranges associated with each driver. It can help consumers understand how each driver works and what elements in music a driver addresses.


Frequency Range

Musical Components in Range


20 - 200 Hz

Adds colour, body, and thump to bass


40 - 1,000 Hz

Bass guitar

Low frequency digital sounds

Mid-Range Driver

300 - 5,000 Hz

Human voice

Most instruments, including guitars, pianos, woodwinds, etc.


2,000 - 20,000 Hz

Highest audible components

Digital and drum effects

When considering various drivers for a system, consumers should consider their favourite musical genres and what elements of the frequency response range they prioritise. This can help them determine what type of component systems and drivers they need to play their music with optimal execution.

Improving a Car's Music System

There are numerous ways for a consumer to improve a car's music system using the various drivers and components found on eBay. One of the easiest ways is to purchase a high-quality, full-range speaker. Component systems are a more advanced option that may require some customisation of a car's interior and more complicated wiring. Consumers should choose an option based on their comfort level.

Aftermarket Full-Range Speakers

While factory-standard OEM speakers can deliver low-quality audio performance, consumers may find that certain aftermarket full-range speakers deliver a more complex soundscape. These full-range speakers come in a wide range of sizes to allow consumers to fit them into their existing speaker openings without making any adjustments.

Component Systems for Vehicles

Component systems, also referred to as component speakers,, are typically speaker pairs that leverage a separate tweeter driver and mid-bass drivers to create a full soundscape. These separate components are linked via a crossover system that limits and balances the frequency range addressed by each driver. Component systems offer a slightly more complex upgrade than factory-standard OEMs, but they deliver a rich and complex soundscape. The mid-bass driver in these speaker pairs often fits into a standard OEM speaker opening, while the tweeter element is installed in a separate location to optimise its placement within the soundscape.

Upgrading Head Units and Amplifiers to Improve a Car's Music System

One can also find head units and amplifiers on eBay that can add yet another level of performance enhancement to a car's system. The head unit of a car audio system is what most people consider the radio. It is the controller located in the dash that interfaces with various media to deliver sound to the system. A quality head unit is the starting point of all car audio systems, and it can add a lot of performance virtue to a car's soundscape. Consumers should also consider looking into new amplifiers for their car audio systems. While new speakers mean a lot, they are only as solid as the amplifiers driving them.

Understanding Sensitivity and Power Handling

It is crucial that consumers match their speakers to the power handling and the sensitivity of an amplifier and the other components of a car audio system. If speakers are not well-matched to a system, they can blow out, start buzzing, or deliver a subpar performance.


A speaker's sensitivity rating, usually given as a decibel rating (dB), essentially defines how loud a sound it can produce given a certain amount of power. If speakers are matched with a low-powered head unit, consumers may want to look for speakers with a higher sensitivity rating so that they can produce a bigger sound with less input. It may seem counterintuitive, but if a head unit is high-powered, on the other hand, or paired with an external amplifier, speakers with a low sensitivity rating are better because they do not need to be as responsive, and the signal flow can be controlled.

Power Handling

Speakers are given two power ratings that indicate how much power they can handle, their maximum RMS rating and their peak power handling rating. It is important that speakers are capable of handling the power surge if they are matched with a powerful head unit or amplifier. The RMS rating is the best indicator of this, as it indicates how much consistent power a speaker can handle, whereas a peak power rating addresses only a temporary surge.



Upgrading an existing car music system to add life, detail, and excitement to a car's sound is a simple matter of learning a bit about the drivers and components that are involved in car audio. Learning about various drivers, such as tweeters and woofers, and the effect they have on a car's soundscape is an essential part of this process. With this information in hand, consumers can then determine whether they wish to take an easier approach with an aftermarket full-range speaker or take the next step up to a component speaker system.

Whichever option they choose, consumers can find a wide array of choices on eBay. Using eBay's search interface gives consumers an instant entry point to the purchasing process. By just taking the time to evaluate potential sellers, consumers can quickly find and purchase the components, drivers, head units, or amplifiers they need to get their car music systems performing optimally.

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