Showcasing the Best in the Mobile Enhancement Industry
The BestCarAudio.com team received a great question about subwoofer polarity and how a crossover affected the phase at the crossover point. Specifically, the question focused on whether the subwoofer polarity needed to be reversed if the sub amp used a -12 dB/octave filter. The short answer is yes. As always happens with audio systems, the full answer isn’t as simple once we Read more
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 words refer to Read more
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 those that Read more
Any time your installer wants to wire two subwoofers to the same channel of an amplifier, they can wire them in series or parallel. The same goes for a dual voice coil design subwoofer. The only benefit of a DVC subwoofer over a single is that there are three wiring options. We examined whether the wiring options for dual voice coil subwoofers differed a while back. Thinking Read more
What happens when a subwoofer is used with an oversized subwoofer enclosure? This article will look at the good, the bad and the ugly in terms of an improper match between the electromechanical characteristics of a subwoofer and the need for a proper enclosure. Why Do Subwoofers Need an Enclosure? If you’ve been following our series of articles on understanding subwoofer Read more
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 understand how the settings interact at the crossover frequency. Let’s Read more
Let’s take a look at amplifier, speaker and subwoofer quality. This time, it won’t be a series of lab measurements that evaluate distortion, frequency response or power. It won’t even include listening evaluations or comments on shiny products. Many years ago, Rockford Fosgate ran a magazine advertisement showing a picture of a Punch 75 HD amplifier and Bruce. Bruce is Read more
How much does it cost to install a car audio amplifier? What a great question! How many channels does the amplifier have? What kind of speakers are being powered by the amp? What source unit are you using? How difficult is it to run power wiring to the battery? As you can see, there’s no “one size fits all” answer to this question. Let’s discuss the bare necessities and the Read more
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. The result should be a sound system that is as optimized Read more
