There’s a common belief that an audio system with more subwoofers will produce more bass. This statement can be 100% true or completely false. Why might it be false? A subwoofer’s output depends heavily on enclosure design. Let’s look at two examples where the output of one subwoofer is more than two. The Most Bass Read More…

A while back, we looked at how adding stuffing to a sealed enclosure affects its performance. It was clear from our measurements that the addition of Dacron lowered the system’s Qtc (Total Q). The original theory was that adding stuffing made the enclosure seem larger and let the driver play louder at low frequencies. Let’s Read More…

We’ve talked at length about how car audio line output converters work and have even compared a few to see which sound best. We skipped over a discussion on whether a car audio amplifier upgrade needs a line-output converter. Let’s dive in! What Does a Line Output Converter Do? A high-quality line output converter serves Read More…

We see a lot of questions like “My car audio amp can produce 800 watts; how much power does each of my subs get?” If you aren’t versed in the calculation basics of Ohm’s law, the answer might not be intuitive. Let’s dive into the math and logic that will let us calculate how the Read More…

Before about 2000, upgrading a factory-installed car audio system was pretty easy. You could start with a new set of speakers and a subwoofer and have something quite enjoyable. In the last few decades, automakers, or more specifically, the companies that supply their audio system components, have learned how to maximize the performance of the Read More…

You’d think that something as simple as operating an on/off button or switch would deliver predictable results. These days, many electronic devices remain on and continue to draw small amounts of current, even when you think they’re off. Let’s look at how car radios work regarding their on/off status and how much current they draw. Read More…

Given the proliferation of fraud, accidents and sheer craziness on the roads today, having a dashcam in your vehicle is, at the very least, a wise investment. These compact camera systems capture video of everything that happens while you drive, in the event you need to share information with the authorities or on social media. Read More…

Once again, we approach a discussion of the laws of physics and how they affect the electrical systems in our cars and trucks. The enemy of all power transmission systems, be it the battery and alternator to the amplifier in your vehicle or the nuclear power station or hydroelectric dam across the state to your Read More…

In the fall of 1982, Billy Joel’s 52nd Street was among the first 50 albums released as consumer-available compact discs. It had been only about four years since digital recording equipment was introduced to studios. This marked a revolutionary change in how consumers would buy their music. It was the dawn of an all-digital era, Read More…

Speakers are, by a long way, the most influential component in any audio system when defining performance or quality. Low-quality speakers, or those without specific technologies, can’t match the clarity levels of premium solutions. In addition, many music enthusiasts want their car audio systems to play louder than what’s possible with factory-installed equipment. After all, Read More…

Water and road salt are known to wreak havoc on the body and underpinnings of our cars and trucks in the winter. Even living near the ocean, where salt levels are high, can accelerate the rusting process. In this article, with some help from the automotive electronic experts at Motron Automotive Electronics in London, Ontario, Read More…

Since the 1980s, car audio enthusiasts have been using large-value capacitors to improve the performance of their car audio systems. Aside from people believing that distortion damages speakers, few topics are as misunderstood as the benefit of adding a high-quality capacitor to your car stereo. So, let’s take a look at what a capacitor is, Read More…

Two factors limit how loudly a car stereo system can play: how much power you have to drive the speakers in the system, and the maximum output capabilities of those speakers. We see a lot of amateur and poorly executed audio system installations that play good and loud when the volume on the radio is Read More…

When it comes to car audio subwoofer upgrades, infinite baffle installations have been around for as long as subwoofers have existed. The science behind a subwoofer installation that doesn’t use a compact enclosure is quite simple. As with any subwoofer system design, some benefits and drawbacks need to be considered. Strap on your thinking caps; Read More…

Who wouldn’t want to buy the loudest, most efficient speaker possible to upgrade their car audio system? A speaker that does a better job converting electrical energy into sound reduces the load on the vehicle’s electrical system, right? Well, efficiency is just a single parameter in the myriad values that describe how a speaker works. Read More…

Decades ago, it took about $40 in parts, on top of the cost of a new car radio, to give yourself improved sound quality and more features. A simple wire harness adapter would let a single-DIN radio connect right to the factory radio harness behind your dash. Add an antenna adapter and you were likely Read More…

If there’s a single marketing statement that makes my eye twitch, it’s one that claims a specific subwoofer will “work” in a small enclosure. Contrary to many marketing claims, enclosure volume is directly proportional to low-frequency extension and sound quality. Let’s look at the math and how these tiny enclosures ruin the performance of your Read More…

I can’t even begin to count the number of times I’ve seen car audio speakers installed improperly in the doors, dash or rear deck of a car or truck. Many amateur car audio enthusiasts don’t understand that unlike home audio and Bluetooth speakers that come in an enclosure, the way that raw speakers are mounted Read More…

You’d think it’d be easy to choose an amplifier of a specific power rating to work with a 500-watt subwoofer. In reality, we need to consider several factors, particularly performance and reliability. Let’s take a detailed look at the complexity of choosing the perfect amplifier for your car audio subwoofer system. The Myth and Mystery Read More…