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Car Audio

Apple CarPlay Explained

BestCarAudio.com - June 5, 2022

Apple CarPlay

According to a AAA survey, the average American drives for about 45 minutes each day. If you compare this time to an eight hour work day, that’s 10% of your work day, on top of the hours you are at your desk. This time is not an insignificant number. If your job involves being on the road, then your time spent behind the wheel can represent half of your day. Being able to be productive while in your vehicle is not only convenient, but in some cases, mandatory to get all the work you need to get done in one day completed. Modern smartphone integration comes to the rescue with Apple CarPlay.

Apple CarPlay History

Apple recognized the need to give people the ability to use their phones in a safe fashion while driving back in 2010. The feature was called iPod Out. BMW announced that it would include iPod Out at the WWDC that year. The concept was that BMW would provide a way for its vehicles to ‘host’ specific applications. The information would be displayed on the factory screen while providing button press and knob rotation information back to the radio.

Apple CarPlayThe next evolution was the introduction of Siri Eyes Free in some Honda Accord and the Acura RDX and ILX models in 2013. Siri Eyes Free is a way to make use of the Siri voice recognition function that Apple Introduced with iOS 5 and the iPhone 4S in October 2011. Apple has marketed Siri as a personal assistant. It allows you to talk to your Apple device to make phone calls, send text messages, set reminders and choose the music you want to hear. Using Siri Eyes Free is simple- press and hold a button on your car radio, wait for the tone, and then speak.

Siri will listen to what you said, convert that to a command and execute it, all without you needing to take your eyes off the road.

Between the time that Apple announced iPod Out and the Geneva Motor Show in March of 2014, Apple was working on the next generation of automotive integration under the code name Stark. At the Geneva Motor Show, they announced ‘iOS in the Car.’ Later that year, Ferrari introduced the new FF model with a fully working version of Apple CarPlay. A few months later, Hyundai announced the Sonata would also feature CarPlay. Most automobile manufacturers have CarPlay available on their mid to high trim level vehicles now.

Apple CarPlay Interface Overview

Apple CarPlay
CarPlay alerts you to new text messages and will read them to you.

Apple’s current marketing touts CarPlay as ‘The Ultimate Copilot.’ The features are designed to allow you to communicate with family, friends, and coworkers without significant distraction. The basic feature set of CarPlay includes making and receiving phone calls, choosing the music you want to listen to, getting navigation instructions and sending and receiving text messages.

Apple has worked hard to ensure that the above functions are usable without unnecessary distraction. As soon as you plug your phone into the USB port of your radio, CarPlay launches automatically.

CarPlay does not display incoming text messages on the screen of the radio. Messages are read aloud to prevent users from looking at the dash. However, there are no options presented when asking Apple Maps to plan a navigation route.

Apple CarPlay
Voice command of music selection keeps driving and listening safe.

Selecting music to play is as easy as requesting the track title, artist or even genre of music you want to enjoy. CarPlay will start playing what you want right away. Apple has also included support for Apple Music- a streaming service powered by iTunes. CarPlay also supports Apple Podcast and Audiobooks. You can select the episode you want to listen to via the touchscreen interface, then play, pause or skip 15 seconds forward or back. Apple CarPlay provides support for several third-party applications including Pandora, Spotify, iHeartRadio, Audible and MLB At Bat.

Apple has released information to application developers in order to allow for the creation of more third party applications. You will see more and more third-party applications added to the CarPlay interface as time passes. Apple will, of course, be selective in their approval process, so don’t expect to see competing navigation applications any time soon.

The Future of Apple CarPlay

Apple CarPlayUnveiled by BMW in October of 2016, future iterations of CarPlay will function wirelessly. The 2017 BMW 5-Series sedans, when used with an iPhone 6 or newer, will allow users to use CarPlay without the need to plug in the Lightning connector. Wireless CarPlay communicates over a Bluetooth data connection.

Apple is tight-lipped about future functionality of CarPlay. There have been rumours about vehicle function control like remote door lock control, remote starting and trunk release, but so far nothing is set in stone. Another rumored feature is the ability of your phone to remember where you parked your car once you have arrived at your destination.

Apple has led the industry with safe and convenient integration of your smartphone to your vehicle. The future of ‘connected cars’ promises to allow us to share information and offer better communication while remaining safe. If you are interested in adding CarPlay to your vehicle, visit your local mobile electronics specialist retailer. They can show you what options are available for your vehicle.

This article is written and produced by the team at www.BestCarAudio.com. Reproduction or use of any kind is prohibited without the express written permission of 1sixty8 media.

Filed Under: ARTICLES, Car Audio, RESOURCE LIBRARY

Product Spotlight: Rockford Fosgate Punch P1000X5 Five-Channel Amplifier

BestCarAudio.com - June 3, 2022

Rockford Fosgate P1000X5

If the sound system in your car or truck doesn’t put a smile on your face, it’s time to visit your local authorized Rockford Fosgate retailer and ask about the impressive P1000X5 five-channel amplifier. This single-channel amp can dish out an effortless 75 watts of power from the four main channels and up to 500 watts of power to a subwoofer. Best of all, it has all the features your installer needs to connect it to almost any factory-installed audio system. If you aren’t intrigued, you should be! Let’s dive deeper.

A Five-Channel Car Audio Amp Is the Perfect Upgrade

If you’ve ever tried to crank up the volume on your car stereo and it began distorting just as things were getting fun, then you need to upgrade your audio system with an amplifier. The P1000X5 is part of the Punch Series from Rockford Fosgate, so it has all the power, features and sound quality you’d ever want.

Let’s start with the power specifications. The P1000X5 is rated to produce 75 watts by four and 150 watts from the subwoofer channel into 4-ohm loads. When connected to 2-ohm speakers, the maximum power output jumps to 150 by four and 300 for the sub channel. If you want to go all out, your installer can design your subwoofer system to present a 1-ohm load to the mono channel so the amp can produce 500 watts of power. The amp can also be configured for three-channel operation where it can produce 250 watts into a pair of 4-ohm speakers and 500 watts into a 1-ohm subwoofer.

Rockford Fosgate P1000X5
All the controls and adjustments for the P1000X5 are on top of the amp to make it easy for your installer to configure.

The P1000X5 includes high-pass crossovers on the front and rear channels that are adjustable from 50 to 250 Hz with -12 dB/octave slopes. The subwoofer channel has a low-pass crossover that’s also adjustable from 50 to 250 Hz and a selectable infrasonic filter set to 28 Hz. The front, rear and subwoofer channels have dedicated sensitivity controls that will accept from 150 millivolts up to an impressive 12 volts. The inputs are differential, so they can handle direct connections to low-power source units without the need for an adapter. The amp has dedicated stereo inputs for the front, rear and sub channels, or it can be configured to feed the sub output from the front and rear, or the rear and sub from just the front.

All three sets of channels feature the on-board Punch EQ circuit, designed to correct for acoustical deficiencies in the cabin of the vehicle. Your installer can dial in up to 18 dB of boost at 45 Hz on the sub channel and up to 14 dB of boost at 12.5 kHz on the front channels. The amp also has a provision for the optional Remote Punch Level control to let the driver adjust the relative level of the sub to the rest of the speakers. In addition, the front, rear and subwoofer channels all feature the C.L.E.A.N. Set-Up feature that lets your installer match your source unit to the amplifier and know when the output signal is clipping.

Rockford Fosgate P1000X5
The famous Rockford Fosgate Punch EQ circuit adds impact and detail without boominess or harshness.

The P1000X5 is 15 inches wide, 7.8 inches long and only 2.4 inches tall. As with the other amps in the Punch series, this amp uses a high-mass cast aluminum heatsink that helps keep things cool while reducing distortion and extending reliability. The amp also features NOMAD protection circuitry that monitors voltages and temperatures to keep the amp safe.

In terms of output device topology, the front and rear channels feature a Class AB design that uses Rockford Fosgate’s proprietary TRANS•ANA configuration to minimize circuit complexity and maximize sound quality. The subwoofer channel is an efficient Class BD design that delivers big power without drawing significant amounts of current from the charging system.

Rockford Fosgate P1000X5
The P1000X5 features top-mounted controls with power, signal and speaker connections located on one side to ensure that the installation remains neat and tidy.

Rockford Fosgate’s Punch P1000X5 – The Perfect Car Audio System Amplifier

One of the most significant benefits of powering your audio system with a five-channel amp is the simplicity of installation. A single-chassis amp doesn’t require multiple power wires or distribution – which can save you a lot of money. Second, five-channel amplifiers typically take up less space than using an amp for the main speakers and a second for a subwoofer.

If you want more performance out of the speakers in your car or truck and are thinking about adding a subwoofer at the same time, drop by your local authorized Rockford Fosgate car audio retailer and ask about the amazing Punch Series P1000X5 five-channel amplifier. You can learn more about this cool amplifier by visiting the Rockford Fosgate website. Be sure to follow their Facebook page, Instagram feed and YouTube channel to learn about the latest audio system solutions for your car, truck, motorcycle or boat.

This article is written and produced by the team at www.BestCarAudio.com. Reproduction or use of any kind is prohibited without the express written permission of 1sixty8 media.

  • Devine Concepts

Filed Under: ARTICLES, Car Audio, PRODUCTS, RESOURCE LIBRARY Tagged With: Rockford Fosgate

The Reference For Great Sound

BestCarAudio.com - April 3, 2022

Great SoundListening to music goes back to the dawn of man. From banging a few tree branches together to the latest computer-generated pop hit, music is a universal language that everyone can enjoy. People who put significant effort into the accurate reproduction of the music they enjoy are often called audiophiles. There is a running joke that audiophiles sometimes concentrate more on listening to the equipment they use to make great sound than to the music itself. While this so-called joke is certainly true during the purchasing and setup stage, once audiophiles have their systems sounding the way they want, the focus turns to enjoying the music.

If you get into a discussion about choosing high-end audio equipment, inevitably someone will suggest that you seek out a reference. The ultimate reference is a live performance. We want to be clear: Artists don’t make money like they used to from album sales. Supporting the performers you enjoy by attending concerts not only is great entertainment for you, but allows the performer to make a few dollars.

With this in mind, the reference for what the reproduction of a recording should sound like is not a live performance.

This article provides a generalization about most music heard on a car radio. There are exceptions; we understand that. We want you to think outside what you were once told.

How Music is Recorded

Great SoundFor most music, each musician or performer is in a recording studio. Microphones are used to capture the subsequent performance. For a singer, the mic is usually directly in front of them. For a group of singers, each individual may have a mic, or they may be gathered around a single centralized mic or a pair of microphones set up to capture the performance in stereo. For someone playing an electric guitar, the mic is most likely in front of the amplifier.

In some recording sessions, the amplifier is placed in a small room and cranked to 11 so it clips and distorts the sound, and that gets recorded. This overdriven performance gives the guitar “a certain sound” that some producers and engineers like.

Great SoundThese techniques go on and on. At the very extreme might be a drum kit. Some recording engineers have microphones on each drum and cymbal, then overhead mics to pick up rim shots and another set of mics forward of the drums to capture the room’s acoustics. Consider this as well: The sensitivity pattern of a microphone is not so narrow that it only captures what is directly in front of it, so each microphone captures information from all of the drums and cymbals, to some extent.

The specific placement of a microphone relative to the instrument it is recording has a dramatic effect on what it captures. Let’s take a look at recording an acoustic guitar. A microphone a few inches in front of the soundhole will capture significantly different information than if the mic is located halfway up the fingerboard. The question now becomes, What microphone position is correct? The next question is, If we were standing in the recording studio with the guitarist, would we hear the same thing that the microphone recorded?

The Effect of the Studio

Great SoundEach make and model of instrument has its own unique characteristic set of harmonics that gives it a “sound.” So, too, does each studio. Some are very large with acoustically absorbent surfaces. Some are very small and have a “live” sound. Placing the same performer with the same instrument in each of these studios will result in a different sound in the listening and recording position. If you haven’t seen it, watch the Foo Fighters’ documentary, “Sonic Highways.” It provides a great look at how different studios can affect the sound of a performance.

Let’s review what we have so far. For a given performance, we have a unique performer, their choice of instrument, the environment, the choice of microphone and the microphone placement that affect what we hear. We are just warming up!

The Control Room

Great SoundIn a studio, the musicians perform in what is called the live room or sometimes an isolation booth. We already know that the shape, size and finish of these rooms affect what gets recorded, but what about the control room? This is a separate room from where the performance is taking place and where the recording engineer and producer typically sit. In this room are the control console, computers to capture and process the recording, and – most importantly – monitor speakers.

In a gross and undetailed generalization, once each microphone channel has been recorded, the producer manipulates each channel to produce the final mix. This manipulation can be as simple as the left-to-right panning and level of each instrument, or as complex as equalization, compression, gating, adding distortion and much more. Often, many processes are applied simultaneously to each channel. It can take weeks or months to mix a single complex track.

We all know how different each and every set of speakers can sound. When we add the acoustics of the control room to the mix (pun intended), the number of variables increases dramatically. Listening to the same master track in two different control rooms can result in dramatically different results. This begs the question once again of what is correct, and how do we know?

Measuring and calibrating the frequency response of the monitoring speaker system will certainly help a lot, but that doesn’t account for the distortion characteristics of the speakers. Let’s say the speakers sound a little warm because the midbass driver has a resonance problem due to nonlinearities in the spider. Even a mild resonance can wreak havoc with the perceived balance of the speaker. Worse, you can’t EQ it back out. Yes, you can flatten the overall response level of the system, but if you are getting some 120 Hz content because the cone is playing 60 Hz, that can’t be removed. Lack of distortion in speakers is crucial to accurate reproduction.

Circle of Destruction?

So, we have our performers in a studio playing music. Microphones are set up in specific locations to capture that performance and the acoustics of the environment. The recording engineer is listening to what is captured by the microphones on that studio’s monitor system. The engineer makes adjustments to the mix based on what he hears. The music is then sold to the public. We listen to it on our reference systems and, if everything has gone according to plan, we enjoy it.

But what if we don’t enjoy it? What if we think what we hear doesn’t have enough bass or has too much high-frequency information? Do we make adjustments to the tone controls on our radios? Does the act of attempting to reproduce sound evolve from a scientific task to a form of art?

What about the Live Performance?

Great SoundOur friends and experts suggested that our reference for listening to music be a live performance. Is it an acoustic performance? Is it in an open-air stadium or a small club? Are any band members drunk? The number of variables that can affect what we hear is nearly infinite. Your best hope of using a live performance as a reference is to listen to a recording of that particular performance. If the recording took place anywhere else, it just might not work. Will the experience be worthwhile and enjoyable? The answer to that is a resounding yes! That performance is not our reference.

What is our Reference For Great Sound?

Great SoundFor a given performance in a given location with a specific set of instruments and microphone placement techniques, the absolute reference for what that performance should sound like would be the control room where the final mixing took place. Even if we expanded our example to a simple two-microphone recording of a choir in a massive cathedral, the recording engineer is likely to make some small adjustments, using a reference audio system or reference headphones, before that recording is released to the public.

Reproducing and listening to music is about more than just frequency response. Time response, reflections in the listening environment and much more affect what we hear. The best way to develop a reference is to listen to the same recording on as many great systems as you can. Ignore the make, model, color and cost of the equipment you are auditioning. Work to quantify the difference between what you hear and what you have heard previously.

After a while, you will start to develop a reference for what sounds good. Continue to listen. Evaluate new products, new applications and new environments. Sure, a personal preference is still involved, but that is your contribution to the art of recording and enjoying music: You can make it sound the way you want.

Your local specialist mobile electronics retailer will have many different systems you can audition. Drop by and ask to listen to a few. If they have a demo car, then definitely listen to that! Listening to music is a lot of fun – never forget that.

This article is written and produced by the team at www.BestCarAudio.com. Reproduction or use of any kind is prohibited without the express written permission of 1sixty8 media.

Filed Under: ARTICLES, Car Audio, RESOURCE LIBRARY

Modern Navigation Systems for Today’s Vehicles

BestCarAudio.com - March 6, 2022

NavigationPaper maps used to be the only way of planning route navigation. Before you, or perhaps your parents, set out on vacation, you would pick up maps for each state or province you planned to drive through, lay them out on the kitchen or dining room table, and highlight the route to take.

The problem with maps is that someone has to read them, and trying to read a map while driving is quite dangerous. Automakers realized that maybe technology could be used to make driving safer. This concept was the birth of the navigation system.

Through the 1980s, Toyota and Mazda worked on several different navigation systems for their cars. Some of these early navigation systems used digitized paper maps. In the 1990s, Mazda introduced the first GPS-based navigation system. Nowadays, most vehicles sold in North America have the option of navigation.

Navigation System Hardware

NavigationModern navigation systems have four key components. The first is a computer. This computer runs the navigation software that plans the route you have requested, tells you when to turn and advises you when you arrive. The second key component is the maps used with the navigation software. Two companies offer these maps, which are licensed to the end-user. The third component is the GPS receiver module and antenna. The GPS receiver lets the navigation system know where you are, and where you are headed. Finally, there is an interface. The interface is usually a touchscreen of some kind. The interface displays the maps and accepts the input of information to plan the route. Information can be typed on a touchscreen or spoken to the software and converted to text.

What is GPS?

NavigationGPS stands for Global Positioning System. The U.S. Department of Defense created the technology in 1975 and it was fully functional by 1995. The purpose of the system was to provide accurate location, speed and altitude data anywhere on the planet. The GPS system comprises about 30 satellites that orbit the Earth. Each one transmits a uniquely coded signal with a very accurate time stamp. The GPS receiver can, once it has acquired signals from several satellites, triangulate its location by comparing the difference in arrival time of each signal. The GPS system most of us are used to is called Navstar, and it is operated and maintained by the U.S. Air Force Space Command.

Many consumers refer to a Portable Navigation System (PNS) or in-dash navigation system as a GPS. While this term has become accepted, GPS is just one key component of a navigation system.

Not surprisingly, there is more than one GPS system in use globally. Russia operates a system called GLONASS, India has IRNSS, the Chinese have BeiDou-2 and the Europeans have Galileo. Some GPS receivers can capture information from multiple systems to improve accuracy. An example would be a radio-controlled camera drone – these use GLONASS and Navstar to provide more resolution regarding their position.

The signal sent to the navigation computer by the navigation receiver includes the longitude, latitude, heading (the direction you are traveling), altitude, velocity and the current time.

What are Navigation Maps?

Knowing where you are on the planet is great. The real key to a navigation system is its maps. Maps are available from one of two companies: TomTom, which purchased TeleAtlas in 2007, and Nokia, which purchased Navteq in 2008.

NavigationMaps are databases of roads stored as vectors. A vector is a line between two points. In the case of navigation road maps, the end points of the lines (or roads) are GPS coordinates. Most navigation map information contains additional information such as house numbers. If you have every wondered why some house or building addresses are off by a little bit, the reason is based on how addresses are stored. At one end of a street, or section of road, the map data contains the beginning house number. The other end of the street has the ending house number. Navigation systems spread out the difference between the two house numbers evenly along the length of the street. This predicted location does not always match reality because of geography – or pure randomness, based on the whim of the local municipal building department.

Navigation systems are useless without maps. They couldn’t plan routes or give directions. You are, quite literally, at the mercy of the quality and accuracy of the maps you own.

Working in conjunction with the map database is a Points of Interest (also known as POI) database. A POI database contains information about businesses and landmarks, and often includes a phone number. Depending on your navigation system, you may have as few as 1.5 million points of interest or as many as 11 million. The manufacturer decides how much they are willing to spend on this information. If your navigation system can search for gas stations, hotels, restaurants or hospitals, then the map data includes a POI database.

Some of the very first navigation systems used analog tape to store map and POI data. Yes – analog, magnetic tape! From that point, we moved to CD-ROM, DVD-ROM, hard disk drives and flash memory. The latest systems are based on smartphones and don’t have the map data permanently stored onboard – it’s all downloaded over the air, using a cellular connection in real time.

Modern Navigation System Features

NavigationModern navigation systems are amazing tools to help you travel safely and efficiently. These systems use extremely complex and proprietary algorithms to decide the best route between the starting and ending points of your route. The most basic of navigation software takes into consideration the size of the road (number of lanes and, if available, speed limit) and the direction of the turns you may have to make to complete the route. Navigation software companies are very protective of their route creation algorithms.

Modern navigation systems can accept real-time information to make route planning more accurate and efficient. The first upgrade was including traffic flow information. Many systems used FM antennae to capture traffic flow information that was broadcast in major urban areas. This technology is called RDS-TMC traffic, since the information was coded into the same frequency space as FM radio RDS information. Newer systems capture this traffic flow and accident information through the SiriusXM receiver. You do need a subscription to SiriusXM Traffic and, of course, supporting hardware in your vehicle to makes this work.

Apple CarPlay and Android Auto

If you have a vehicle with Apple CarPlay or Android Auto, your smartphone becomes an integral part of your navigation solution. Apple or Google stores map information and downloads it in real time through your smartphone’s data plan. The beauty of this solution is that you never, ever have to pay for map updates – the information is always being updated.

NavigationApple Maps and Google Maps both offer turn-by-turn navigation solutions that use each brand’s advanced voice recognition software. All you have to do is press a button and ask the system to take you to an address.

CarPlay and Android Auto navigation has the benefit of being able to acquire Point of Interest information directly from the Internet. If a new company opens and registers itself with Apple and Google, you can search for it right away.

One drawback of CarPlay and Android Auto is that the maps aren’t stored on the phone or in the vehicle. If you are traveling to another country, your cellular provider will charge roaming fees. (You can get roaming data plans to help minimize the cost, so that’s not a huge deal, but it has to be considered before you buy.) Another consideration is that these systems are constantly downloading map information. If you happen to have a cellular data plan with very limited bandwidth, this could eventually cost some money in data overage charges. These are not show-stoppers, just considerations.

Google Waze

Navigation-8.pngOne very popular navigation application used by people who live in high-traffic areas like Los Angeles, Toronto, San Francisco, Seattle, Honolulu, New Orleans or Chicago is called Waze. This application is available for iPhone and Android phones for free. The beauty of Waze is that other users provide traffic flow information, including detours, accidents and warnings for potholes, weather or even animals on the road. Waze offers crowd-sourced traffic information at its finest. Google purchased Waze in June of 2013 for $1.3 billion. If you run the risk of getting stuck in a traffic jam, try Waze; it’s quite impressive.

Using any navigation solution has its perils. If your co-pilot is reading directions from a paper map, or you are trying to drive while listening to voice prompts from a navigation system, there is always the risk of making an error while turning, merging or exiting. Always be careful when navigating and heed the rules of the road at all times.

If you are in the market for a navigation solution for your vehicle, visit your local mobile electronics specialist. They have many different solutions depending on the vehicle you drive. Some systems replace the factory radio, some work with it and some operate separately from it. They can show you the options for your vehicle.

This article is written and produced by the team at www.BestCarAudio.com. Reproduction or use of any kind is prohibited without the express written permission of 1sixty8 media.

Filed Under: ARTICLES, Car Audio, Navigation, RESOURCE LIBRARY

Product Spotlight: Rockford Fosgate P3D4-12 Car Audio Subwoofer

BestCarAudio.com - February 11, 2022

Rockford Subwoofer

If you’ve been into car audio for as long as I have, you’ve likely had a memorable experience with a Rockford Fosgate subwoofer. I vividly remember being in one of the Korbon Trading (the Canadian distributor of Rockford Fosgate in the ’80s) Blastro vans. This GMC Safari had four 18-inch Punch subwoofers powered by a pair of Power 1000 amplifiers. It was the first time a car audio system left me breathless. Fast-forward 33 years and Rockford Fosgate is still a leader in developing car audio subwoofer solutions that get loud and sound amazing. Let’s take a close look at the flagship of the Punch Series 12-inch drivers – the P3D4-12.

Rockford Fosgate Punch P3D4-12 Features

The P3D4-12 is a dual voice coil subwoofer constructed with each coil having an impedance of 4 ohms. The sub is available in a dual 2-ohm model called the P3D2-12. Both are based around a custom-tooled four-spoke hybrid stamp-cast aluminum basket. The main vertical supports and the mounting lip are stamped. There is a cast cooling insert at the base of the basket around the voice coil. Underneath the basket is a 96-ounce double-stacked ceramic magnet assembly that is concealed with a protective PVC rubber cover. The bumped T-yoke is visible through the bottom of the cover, exposing the vented pole piece and eight additional small cooling vents under the voice coil former. These extra vents also allow air pressure to be released from inside the motor as the driver moves rearward, thereby improving linearity and reducing distortion at high excursion levels.

Up top, the additional cooling and ventilation are provided by vents below each window in the basket. These allow hot air to escape from under the spider, helping to keep the motor assembly cool and reduce power compression. All the cooling features combine to ensure that these subwoofers continue to sound great without losing efficiency, even after hours of play time.

With Rockford Fosgate’s FlexFit basket, instead of eight fixed holes in the mounting lip for fasteners, eight slots allow your installer to align the subwoofer perfectly in the enclosure. An aluminum ring is included to finish off the installation and conceal the mounting hardware for a classy and tidy look.

Rockford Subwoofer
The heavy-duty hybrid stamp-cast aluminum basket ensures a solid foundation for this impressive subwoofer.

Voice Coil and Moving Part Features

The cone of the P3D4-12 is made from aluminum, as is the inverted dust cap. Both have an anodized finish, and Rockford Fosgate is screened on the cone. At the top of the cone is a Santoprene rubber surround that is attached to the basket with Rockford Fosgate’s VAST design. In essence, VAST moves the surround closer to the outer edge of the basket and increases the effective cone area of the driver.

Rockford Subwoofer
An aluminum trim ring conceals the FlexFit mounting hardware for a clean and tidy appearance.

At the base of the cone are a pair of tear- and fatigue-resistant linear poly-cotton spiders mounted face-to-face to reduce nonlinearities. Four 16-AWG tinsel leads are sewn into the spiders to ensure that they won’t make noise at high excursion levels. The 2.5-inch voice coil former is made of anodized aluminum so that it can withstand extreme temperatures. The driver uses a four-layer voice coil winding. A spun-laced NOMEX reinforcement collar adds strength to the connection between the cone, the voice coil former and the spiders.

Electrical connections are handled by four nickel-plated spring terminals. The terminals push inward toward the voice coil and wire up to 10 AWG in size is inserted from below. While it seems inconsequential, this vertical wiring method helps keep everything organized during installation.

Rockford Subwoofer
The bottom-entry terminals on the P3D4-12 accept up to 10-AWG cables and keep the wiring out of the way when installing the subwoofer.

P3D4-12 Specifications

The P3D4-12 subwoofer is rated to handle 600 watts of power continuously and up to 1,200 watts maximum power. The driver has a total weight of 20.9 pounds (9.48 kilograms). Mounting depth is 6.66 inches, and the driver requires a cutout size of 11.25 inches.

In terms of electromechanical specifications, Rockford Fosgate specifies the driver as having a resonant frequency (Fs) of 27.7 hertz, an equivalent volume compliance (Vas) of 2.04 cubic feet and a total Q (Qts) of 0.52. The maximum linear excursion (Xmax) is listed at 0.547 inch in each direction.

The owner’s manual suggests a sealed enclosure with a net internal volume of 1.02 cubic feet to produce an F3 frequency of 42.2 hertz and a system Q of 0.78 – which should be well-controlled and impressively musical. If you want to increase low-frequency efficiency, they suggest a 1.79-cubic-foot vented enclosure with a tuning frequency of 40 hertz. This should result in an F3 frequency of 32.8 hertz and a lot more output. If you have the room, we always suggest the vented enclosure.

Rockford Subwoofer
Predicted frequency response of the P3D34-12 in the factory-spec enclosures: red, sealed; yellow, vented

If you want a little more rumble from the sub, ask the Rockford Fosgate retailer you’re working with to build the vented enclosure with a tuning frequency of 30 Hz. You’ll lose some of the 50-60 hertz efficiency, but pick up more output below 35 hertz.

Rockford Subwoofer
If you want to trade some boom for more rumble, drop the enclosure tuning frequency from 40 hertz (yellow) to 30 hertz (green).

Upgrade Your Car Audio System with a Rockford Fosgate Subwoofer Today

If you’re searching for a high-performance subwoofer that’s designed to sound great while delivering impressive amounts of bass, drop by your local authorized Rockford Fosgate retailer. You can find a shop near you using the dealer locator on the Rockford Fosgate website. Be sure to follow Rockford Fosgate on their Facebook page and Instagram feed and check out the awesome videos they produce on their YouTube channel.

This article is written and produced by the team at www.BestCarAudio.com. Reproduction or use of any kind is prohibited without the express written permission of 1sixty8 media.

Filed Under: ARTICLES, Car Audio, PRODUCTS, RESOURCE LIBRARY Tagged With: Rockford Fosgate

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About Us

About Us

Devine Concepts is a mobile electronics retailer based in Naples, Florida. We are led by Adam Devine, a 20-year veteran in the industry and a Mobile Electronics Association top 50 … [Read More...]

Take a Tour of Our Facility

virtual tour

We invite you to tour our facility virtually. We hope you love what you see. (It’s even better in person!)

Car Audio

Car Audio

Devine Concepts in Naples, Florida, specializes in car audio. While some shops offer this as one of their services, it is the main focus in our facility. In fact, our owner Adam … [Read More...]

Radar / Laser Detectors

Radar / Laser Detectors

One of the specialties at Devine Concepts in Naples, Florida, is laser and radar detectors. We offer both portable and custom-installed solutions to our clients. It is our opinion … [Read More...]

Custom Installation

Custom Installation

Custom Installation

Devine Concepts in Naples, Florida, was founded in 2018 by Adam Devine, an MECP Master Installer with more than 20 years of experience,  and one of the most-awarded mobile … [Read More...]

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Location


Get Directions to Devine Concepts

Address

Devine Concepts
14848 Old 41 Rd
Suite 9,
Naples, FL 34110
Phone: (239) 451-3210

Services

  • Car Audio
  • Custom Installation
  • Driver Safety
  • Radar / Laser Detectors

Connect with Us

  • Facebook
  • Instagram
  • YouTube

Store Hours

SundayClosed
Monday10:00 AM - 6:00 PM
Tuesday10:00 AM - 6:00 PM
Wednesday10:00 AM - 6:00 PM
Thursday10:00 AM - 6:00 PM
Friday10:00 AM - 6:00 PM
Saturday10:00 AM - 4:00 PM

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