Showcasing the Best in the Mobile Enhancement Industry
It seems like everything to do with car audio installations has something to do with managing voltages. For starters, your electrical system needs to produce enough voltage to keep your radio and amplifier going. And amplifiers need to increase the voltage to drive speakers. When adding an amplifier to a factory-installed audio system, your installer will need to measure the Read more
Imagine a science experiment that calls for a chemical solution to be heated to precisely 130 degrees for five minutes. Would a scientist guess at the temperature or stick their finger in the beaker, or would they use a calibrated thermometer to measure exactly when to apply more heat? Likewise, would they use a clock or stopwatch or count to 300 Mississippi to know when the Read more
Day after day, I read posts on Facebook and Reddit about do-it-yourselfers trying to set their car audio subwoofer amplifiers so that they don’t make full power. The typical description goes something like: “I have a 700-watt amp and a 500-watt sub, so I set the gain so the amp so it will only produce 31.6 volts.” There’s usually something extra like “the radio was set to ¾" Read more
We were recently at an event that was hosting a mobile audio system SPL competition. If you aren’t familiar with this sort of thing, it’s a contest to see who has the loudest stereo. We aren’t talking about cranking the dial on the factory radio. Instead, some of these folks build steel and concrete reinforced subwoofer enclosures and feed tens of thousands of watts to their Read more
I’ve listened to a LOT of car stereo equipment since I started in the car audio industry back in 1988. Since 2000, I’ve tested and formally reviewed hundreds of car audio products for publications across North America. I’ve even developed subwoofers, speakers and DSP-equipped amplifiers for one of the companies I worked for. I was a car audio sound quality competition judge for Read more
Having your local specialty car audio retailer install an amplifier in your car or truck is a great way to improve the performance of your audio system. The extra power will allow you to turn the volume up higher to extract more from your speakers. If you have a subwoofer installed, you’ll need to choose an amplifier that can produce lots of power. While there are some Read more
A few weeks ago, we were browsing a few car audio related Facebook groups and Reddit subreddits. We saw the same question come up time after time: “I have two dual 2-ohm voice coil subs; how do I show the amp a 1-ohm load to make max power?” It wasn’t just once or twice that this question was asked – we saw it and versions of it at least a dozen times in less than an hour of Read more
In a recent online discussion, someone stated that a car audio amplifier couldn’t be power-hungry. After the eye-twitching passed and our heart rates settled, we knew this was a perfect topic for our series on car audio myths. Let’s look at how amplifiers, specifically subwoofer amplifiers, make use of the power from your vehicle’s electrical system. What Is Amplifier Read more
We’ve lost track of how often we’ve said that not all car stereo shops are true professionals. It seems like some local retailers that work on exotic cars just don’t have a basic understanding of the physics behind car audio system design, integration and calibration. In this article, we’ll take a look at a few of the sure signs that you’re dealing with someone who cares about Read more
When it comes to car audio upgrades, price and value in a purchase are often unrelated. For example, if the lease is up on your BMW and you decide you want to save some money, leasing a Mitsubishi Mirage isn’t a direct replacement, even if it costs a lot less per month. In addition, associating value with a purchase is difficult to quantify, especially when it comes to car Read more
If you’ve been around the car audio scene for a few decades, then you’ll recall a time when almost all amplifiers doubled their output power when the load impedance was halved. For example, an amplifier might have been rated to produce 75 watts per channel into a 4-ohm load and 150 watts into a 2-ohm load. It wasn’t unheard of to see low-power amplifiers like the infamous Orion Read more
A comment came up the other day that it was unwise to use all channels of a four-channel amplifier to power a pair of subwoofers. Not only is this incorrect, but this practice opens up several unique system designs and installation possibilities, especially where high-power requirements are necessary. Let’s dive in! Four-Channel Amplifiers Are Amazing! In terms of application Read more
