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Understanding how DC voltages combine is quite simple. They add linearly when we wire sources (like batteries) in series. But understanding how AC waveforms combine is complicated. AC waveforms don’t always sum intuitively unless the peaks and valleys align perfectly. We see many examples where people interchange the terms phase and polarity. In reality, those […]
There will always be debates about whether a Class D amplifier can sound as good as a Class AB. We’ve proven that it all depends on who designs the amplifier. We also see mumblings about single-ended amps versus full-bridge designs. STMicroelectronics created a different and unexpected way to deliver efficient power. These amplifiers are categorized […]
Floating-face car radios are popular because of their flexible installation options and relatively massive displays. The Sony team has been hard at work updating their products, and the new 10.1-inch XAV-AX8500 digital multimedia receiver is their latest offering in this hot market segment. Let’s see what’s been added to the platform to keep it at […]
Over the last decade, the popularity of under-seat truck subwoofer upgrades has exploded. At least a dozen companies offer vehicle-specific solutions with shallow-mount subwoofers to add bass to these vehicles. If you’re perusing the enclosure options for your truck, you’ll notice two distinct options: enclosures with drivers that face upward into the seat bottom and […]
You should be aware that copper-clad aluminum wire is the least-preferred option for connecting an amplifier to your vehicle’s battery or alternator. Copper-clad aluminum wire has more resistance for a given diameter than an all-copper cable. As a result, it wastes precious voltage and transforms it into heat when it could be allowing your amplifier […]
One thing common to every car audio subwoofer enclosure is that they need to connect to the subwoofer amplifier. Most subwoofer enclosures include a terminal cup or something similar to facilitate easy connection to the subwoofers. Let’s look at subwoofer enclosure speaker wire connection options. Guess What? Ohm’s Law If you’re serious about car audio, […]
Although talking about a trunk full of high-performance subwoofers powered by big amplifiers is fun, Sony knows that many people want a more cost-effective bass upgrade for their cars and trucks. On the heels of their entirely new Mobile ES amplifiers, source units, speakers and subwoofers, Sony has launched the latest iteration of the GS […]
Undoubtedly, you’ve heard the term GPS. It’s not uncommon for consumers to refer to navigation software like Waze, Google Maps, Apple Maps or a portable navigation device from Garmin or TomTom as a GPS. Unfortunately, giving these solutions the GPS title is incorrect. Let’s look at GPS, how it works, and how similar technologies are […]
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 […]
