When designing a car audio subwoofer system, the Product Specialist and Installer you’re working with have two options for mounting subwoofers in your enclosure. There is, of course, the typical method with the motor assembly and basket inside the enclosure. With that said, many installations have the subwoofers mounted upside down, or as many call […]
ARTICLES
Who’s the Typical Client for Your Local Car Stereo Shop?
In the ’80s and ’90s, the target demographic at a car stereo shop was men ages 18 to 24. Guys would work to upgrade their cars with subwoofers, pull-out CD players and lots of speakers in hopes of having the loudest audio systems in their group of friends. Not coincidentally, during that time magazines ran […]
Subwoofers and Amplifiers – Let’s Talk About Ohms and Loads
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 […]
A Detailed Look at the Speaker and Subwoofer Xmax Specification
For car audio enthusiasts who’ve invested time studying the Thiele/Small parameters of speakers and subwoofers, you’ll know there is a specification called Xmax. This variable, typically expressed in millimeters or inches, is intended to describe the one-way excursion capability of the driver. Put another way, it’s the distance the cone can move forward or rearward […]
A Close Look at Class-D Car Audio Amplifier Efficiency
For car audio enthusiasts, especially those interested in competing in SPL competitions, amplifier efficiency should be one of their primary concerns. In this first of three articles on efficiency, we take a close look at the Rockford Fosgate M5-1000X1 Class-D subwoofer amp and analyze how well it makes use of power at different output levels. […]
Do All Car Audio Amplifiers Double Their Power When Loaded Down?
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 […]
Car Audio Myths – You Can’t Ground a Car Audio Amplifier to the Battery
It’s time to dispel another unsubstantiated car audio myth! This time, we’re talking about claiming that you can’t ground an amplifier directly to the battery in a vehicle. Perhaps it would add to the clarity of the statement to say that many inexperienced installers think the ground wire for the amp has to go to […]
Even the Simplest Car Audio Systems Need DSP Calibration
Every professional audio system installation, be it for a church, dance club, home theater or your car, requires DSP calibration. Your smartphone, laptop and smart speaker use digital signal processors to optimize the sound you hear from the tiny speakers. Digital signal processors aren’t magic, and they aren’t complicated. They offer a reliable and straightforward […]
How Cooling Features Improve Car Audio Subwoofer Performance
Not long ago, we looked at how an increase in subwoofer voice coil temperature reduced the power delivered from your amplifier. With component temperatures easily exceeding the boiling point of water, the impedance of the voice coil can increase by more than 50%. Manufacturers that understand this go to great lengths to include technologies to […]
Product Spotlight: Sony XAV-9500ES Mobile ES AV Receiver
Those seeking the ultimate performance from a car audio system know that the result will only be as good as what you start with. Decades ago, many companies offered high-end CD players. These days, your options are limited when it comes to genuinely high-performance car audio source units. If support for hi-res, an impressive 10.1-inch […]