The concept of how car audio amplifiers distribute power to multiple speakers connected to the same channel seems simple. A little math with Ohm’s law and looking at the amplifier’s specifications should tell the tale, right? Yes and no. Things get more complicated when crossovers are involved. Don’t fret; we’re here to make everything easy […]
Car Audio
Car Audio Crossover Slopes, Alignments and Summing
Car audio upgrades are much more complex than setting up speakers in your living room. They are, unless all you have in the system is a set of coaxial speakers in your doors. Your installer has to consider crossover slopes and alignments if you have front and rear speakers and a subwoofer. They must also […]
Car Audio Myth: Larger or More Subwoofers Are Always Louder
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 […]
Revisiting Sealed Subwoofer Enclosure Stuffing with SPL Measurements
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 […]
How Do I Know if My Car Audio DSP Is Adjusted Properly?
It should go without saying that a car stereo system designed around multiple amplifier channels and a DSP is the easiest way to get great sound in your vehicle. The technician working on your vehicle has complete control over the output level, sound arrival time and the frequency response of each speaker in the system. […]
Do I Need a Line Output Converter To Add a Car Amplifier?
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 […]
How Is the Power from My Amp Divided Between My Subwoofers?
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 […]
My Car Stereo System Sounds Worse After a Speaker Upgrade. Why?
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 […]
Is Your Radio Turned Off or Killing Your Battery?
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. […]
Benefits and Drawbacks of Using Dashcam Parking Mode
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. […]