Revel's First Car Audio System in the Lincoln MKX GA S REGULAR Menu Lifewire Tech for Humans Newsletter! Search Close GO Smart & Connected Life > Connected Car Tech 29 29 people found this article helpful

Revel's First Car Audio System in the Lincoln MKX

An expert reviews the sound

By Brent Butterworth Brent Butterworth Writer University of North Texas A former Lifewire writer, Brent Butterworth's lifelong passion for audio and music has taken him from building DIY speakers to searching for the hottest new audio technologies. lifewire's editorial guidelines Updated on September 18, 2020 Tweet Share Email Tweet Share Email Connected Car Tech Android Auto Apple CarPlay Navigation Revel is one of the most respected high-end speaker brands. The brand is part of Harman International, the parent company of JBL, Infinity, Mark Levinson, Lexicon, and a host of pro audio brands whose products are used in factory-installed car stereo systems. Let's look at how the system is laid out.

How Revel Works

The Revel system in the MKX is available in two versions: a 13-speaker version and a 19-speaker (although 20-channel) version. Lifewire The core of the system is an array with an 80 mm midrange and a 25 mm tweeter, which you can see pictured below. (You can barely see the midrange driver through the grille.) It's designed in much the same way as the Performa3 speakers, with a waveguide on the tweeter to smooth the transition between the two drivers. The two drivers are positioned closely together to function more like a single sound source. Even the crossover points and slopes are similar to the ones used in the home speakers. (In the car, the crossovers are done in digital signal processing, not with passive components such as capacitors and inductors.) Each of the four passenger doors has a 170 mm midrange woofer, and there's a tweeter in each passenger door. A rear-mounted subwoofer provides the bass. Lifewire The 19-speaker system, which carries the Ultima designation used on Revel's top speakers, includes the following: A full midrange/tweeter array in each passenger door. Two midrange/tweeter arrays in the rear. A dual-coil subwoofer that can take advantage of an extra amplifier channel. In all, the 19-speaker system has 20 amplifier channels. The amplifier is a hybrid design, with traditional Class AB amps for the tweeters and high-efficiency Class D amps for the other drivers. This is intended to deliver the best mix of efficiency, compactness, and sound quality. It mounts in the left-rear corner of the car, opposite the subwoofer.

The Sound

We were happy to hear how much of the sound quality of our home system seemed to carry through into the car systems. We couldn't hear the transitions between the drivers. As with home speakers, the colorations are minor. The system sounds remarkably neutral and engaging—unlike most car audio systems, which can sound somewhat dull. Lifewire Just as important is the system's sound staging, which doesn't sound like that of other car systems. There is a broad expanse of sound stretching across the dashboard. It sounds almost as if there are virtual speakers atop the dashboard, placed about one foot in from either side, similar to a home system. It's difficult to localize the side-panel midrange/tweeter arrays. When listening to an EDM tune with massive, ultra-dynamic bass cranked to full blast, we didn't hear any distortion, nor did the sound grow thin or the woofer obnoxiously boomy. It sounded much the same, just a lot louder. This is due to advanced limiter circuits. The speakers run 35-volt power supply rails into 4-ohm loads. A broad expanse of sound stretches across the dashboard, sounding almost as if there are virtual speakers atop the dashboard. "Typically, the audio people get about a week to tune a car," Alan Norton, Manager of Global Entertainment Systems for Ford Motor Company (Lincoln's corporate parent), told us. "With this one, Harman had the car for several months." The company set up a Revel speaker system in an adjacent room so that during the tuning process, engineers and trained listeners could hear the Revel system. Then, they could walk next door and hear the Revel system in the car. It should be no surprise that the car system sounds so much like the home speakers.

The Technologies

That's in stereo mode. The Revel/Lincoln systems are the first to feature Harman's QuantumLogic Surround, or QLS, technology. QLS analyzes the incoming signal, digitally separates the instruments, then steers instruments into the speakers in the surround array. Lifewire Conventional matrix surround decoders such as Dolby Pro Logic II and Lexicon Logic7 (which QLS will replace) only analyze the differences in level and phase between the left and right channels. These decoders steer sounds into the surround channels without much regard for frequency content. We're hypersensitive to the steering and phase artifacts that most matrix decoders produce. We were amazed to hear not even a hint of them in QLS. It sounded like actual 5.1 or 7.1 audio. "What I like about QLS is that it's not adding anything," Ford's Norton said. "You can add all the signals back together, and you get the exact same stereo signal you started with." The Revel/Lincoln systems are also the first to feature Harman's QuantumLogic Surround, or QLS, technology. Two QLS modes are included: Audience provides a fairly subtle, ambient surround effect.Onstage steers sounds more aggressively into the rear channels. There's a straight stereo mode, too. The factory setting defaults to Audience mode, but you might enjoy the dramatic, wraparound effect of the Onstage mode. One cool thing about the system is that there's no muting or clicking when you switch modes. It just fades imperceptibly from one mode to the next. Both Revel systems have Harman's Clari-Fi system running full-time. Clari-Fi is designed to restore high-frequency content to audio files compressed using MP3 and other codecs. The more compressed the music is, the greater the effect Clari-Fi has. On low-bitrate satellite radio signals, Clari-Fi does a lot. When you play CDs, it does nothing. We got a brief Clari-Fi demo at Harman's Novi facility, and it seems to work pretty much as advertised. The Revel system sounds like a different kind of car audio system. Give it a listen and see if you agree. Was this page helpful? Thanks for letting us know! Get the Latest Tech News Delivered Every Day Subscribe Tell us why! Other Not enough details Hard to understand Submit More from Lifewire The Complete Guide to Home Audio Systems for Beginners The 3 Best Car Stereo Systems of 2022 Component or Coaxial: Building Better Car Audio Does Your Car Stereo Need a Crossover? 5 Things to Consider Before Buying Stereo Speakers How to Connect Your TV to an External Audio System The 4 Best Home Audio Systems of 2022 Car Amplifiers: Do You Really Need Them? Why You Should Replace Your Car Speakers Floor-Standing vs. Bookshelf Loudspeakers: Which Is Best? How to Fix Common Car Amp Problems The 7 Best Floor Speakers of 2022 The 4 Best Home Theater Systems of 2022 What Is a Sound Bar? Bose Wave SoundTouch IV Review: Good Audio, Poor Design The 10 Best Hi-Fi Speakers, Tested by Lifewire Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up Newsletter Sign Up By clicking “Accept All Cookies”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. Cookies Settings Accept All Cookies