Jensen JWM92A: Upgrade Your RV Entertainment Experience

The allure of the open road, the freedom to explore breathtaking landscapes at your own pace – this is the essence of the RV lifestyle. And what’s a journey without the perfect soundtrack to accompany it? Music, movies, and staying connected are integral parts of the modern travel experience. However, traditional RV entertainment systems often fall short, leaving adventurers yearning for a more immersive and seamless audio-visual experience. Clunky interfaces, limited connectivity options, and lackluster sound quality can detract from the joy of the journey. This is where the Jensen JWM92A steps in, a sophisticated wallmount stereo designed to revolutionize your RV entertainment, transforming your mobile haven into a hub of modern audio-visual technology.

Overview

The Jensen JWM92A is more than just a replacement for your old RV stereo; it represents a significant leap forward in mobile entertainment technology. This slimline, thoughtfully engineered unit seamlessly blends powerful audio performance with a suite of cutting-edge features designed to meet the demands of the modern RVer. Boasting Bluetooth streaming, DVD/CD playback, HDMI connectivity with ARC, and a versatile 3-zone audio system, the JWM92A delivers an unparalleled entertainment experience, whether you’re a seasoned road warrior or embarking on your first RV adventure. It’s a testament to how far RV entertainment has come, addressing the limitations of its predecessors with a focus on enhanced connectivity, intuitive user experience, and superior sound quality.

Core Features: Elevating Your RV Entertainment

Let’s delve into the core features that make the Jensen JWM92A a game-changer for RV enthusiasts:

Bluetooth Wireless Audio: Seamless Connectivity and Freedom

In today’s interconnected world, seamless wireless connectivity is paramount. The JWM92A excels in this area with its integrated Bluetooth technology, allowing you to effortlessly stream music, podcasts, and audiobooks directly from your smartphone, tablet, or laptop. But how does this seemingly magical technology work?

Bluetooth operates in the 2.4 GHz ISM (Industrial, Scientific, and Medical) band, a globally unlicensed frequency range also used by Wi-Fi and other devices. To avoid interference in this crowded space, Bluetooth employs a technique called Frequency-Hopping Spread Spectrum (FHSS). Imagine a crowded room where everyone is trying to have a conversation. FHSS is like each pair of conversationalists rapidly switching between different corners of the room to avoid being drowned out by others. Similarly, Bluetooth devices rapidly hop between 79 different frequencies within the 2.4 GHz band, making up to 1600 hops per second! This constant shifting minimizes the chance of encountering interference from other devices, ensuring a stable and clear audio stream.

The JWM92A supports the Advanced Audio Distribution Profile (A2DP) for high-fidelity stereo audio streaming. Think of A2DP as a specialized language that ensures your music is transmitted with optimal clarity and richness. Furthermore, the Audio/Video Remote Control Profile (AVRCP) allows you to control playback – play, pause, skip tracks, and adjust volume – directly from your connected device, offering unparalleled convenience.

Scenario: Picture yourself relaxing by a campfire under a star-studded sky. With the JWM92A, you can effortlessly connect your phone via Bluetooth and fill the air with your favorite campfire tunes, creating an unforgettable ambiance without ever leaving your cozy spot.

HDMI ARC: Streamlined Simplicity for Your Audio-Visual Setup

Gone are the days of wrestling with a tangle of cables to connect your TV to your sound system. The JWM92A features HDMI with Audio Return Channel (ARC), a revolutionary technology that simplifies your setup and enhances your viewing experience. HDMI ARC allows audio to be sent from your ARC-compatible TV back to the JWM92A through the same HDMI cable that carries the video signal to the TV.

How does it work? HDMI ARC takes advantage of the Consumer Electronics Control (CEC) protocol, a set of commands that enable different HDMI-connected devices to communicate and control each other. When you connect your TV to the JWM92A’s HDMI ARC port, the two devices establish a two-way communication channel. Your TV can then automatically route audio signals – from built-in apps like Netflix or from connected devices like a Blu-ray player – back to the JWM92A for amplification and playback through your RV’s speaker system.

Think of it like this: Instead of audio signals needing a separate one-way street to travel from your TV to your sound system, HDMI ARC creates a two-way highway within the existing HDMI cable. This eliminates the need for a separate optical or coaxial audio cable, reducing clutter and simplifying your setup.

Scenario: Imagine settling in for a movie night in your RV. With HDMI ARC, you simply turn on your TV and the JWM92A automatically switches to the correct input, playing the movie’s audio through your RV’s speakers. No more fumbling with multiple remotes or confusing settings – just pure, immersive sound.

Multi-Zone Audio: Personalized Sound Throughout Your RV

One of the most impressive features of the JWM92A is its 3-zone audio system, which allows you to divide your RV into three distinct listening areas, each with independent volume control and source selection. This level of flexibility is a game-changer for group travel, allowing everyone to enjoy their preferred audio without disturbing others.

How is this achieved? The JWM92A’s internal amplifier is capable of powering up to eight speakers, divided into three zones. The system’s sophisticated audio matrix allows you to route different audio sources to each zone. You have the option to play the same source in all zones for a unified audio experience or different source in each zone to cater to individual tastes. The independent volume control ensures that the sound level is perfect for each area.

Scenario: Imagine you’re enjoying a classic rock album in the main living area, while your kids are listening to their favorite pop music in the bunk area, and your partner is relaxing outside with an audiobook. The JWM92A’s multi-zone audio makes this scenario a reality, providing a personalized audio experience for everyone on board.

Important Features: Enhancing Your Journey

Beyond the core features, the JWM92A offers a range of functionalities designed to enhance your overall RV entertainment experience:

AM/FM Radio: Staying Connected on the Road

While streaming services are prevalent, the AM/FM radio remains a vital source of information and entertainment, especially when traveling through remote areas with limited internet connectivity. The JWM92A is equipped with a highly sensitive digital AM/FM tuner, capable of picking up even weak signals, ensuring you stay connected to local news, weather updates, and music.

How does it work? AM (Amplitude Modulation) and FM (Frequency Modulation) are two different methods of encoding audio information onto radio waves. AM radio waves have longer wavelengths and can travel longer distances, especially at night, making them suitable for news and talk radio. FM radio waves have shorter wavelengths but offer higher fidelity sound, making them ideal for music. The JWM92A’s tuner is designed to receive both AM and FM signals with exceptional clarity, thanks to its advanced circuitry and sensitivity (\<4 μV for FM and \<63 μV for AM). Furthermore, a stereo separation greater than 25dB helps produce a more realistic sound stage.

DVD/CD Player: A Nostalgic Touch with Modern Reliability

For those who cherish their physical media collection, the JWM92A includes a built-in DVD/CD player. While streaming has become dominant, the optical disc still holds a special place for many, offering a tangible connection to their favorite albums and movies. The JWM92A supports a wide array of formats, including CD-R/RW, DVD+R/RW, and even MP3/WMA encoded discs.

A Glimpse into the Past: The compact disc (CD) revolutionized the music industry in the 1980s, offering superior sound quality and durability compared to vinyl records and cassette tapes. DVDs followed suit, bringing high-quality video and surround sound to the home theater. Both formats rely on a laser to read data encoded as microscopic pits on the disc’s surface. The JWM92A’s player utilizes a precise laser mechanism and advanced error correction to ensure smooth and reliable playback, even on bumpy roads.

USB Media Playback: Your Digital Library at Your Fingertips

The USB port on the JWM92A provides another convenient way to access your digital music library. Simply load your MP3 or WMA files onto a USB flash drive, plug it into the unit, and enjoy hours of uninterrupted music.

Digital Audio Basics: MP3 and WMA are compressed audio formats that reduce file size while maintaining acceptable sound quality. This compression is achieved by removing audio data that is less perceptible to the human ear, a process known as “lossy” compression. The JWM92A’s built-in decoder can efficiently process these files, delivering clear and dynamic sound.

Other Thoughtful Touches

The Jensen JWM92A boasts several other features designed with user convenience in mind:

• App Control: The Jensen jControl app allows you to control the JWM92A from your smartphone or tablet, offering a convenient alternative to the physical remote. This is especially useful when you’re relaxing outside your RV or in a different zone. While some users have reported connectivity issues, the app generally provides a user-friendly interface for controlling various functions.
• Preset Equalizer: The JWM92A features five preset equalizer settings (User, Flat, Pop, Classical, Rock). An equalizer allows you to adjust the balance of different frequencies in the audio signal, tailoring the sound to your preferences or the type of music you’re listening to. For example, the “Pop” setting might boost the bass and treble for a more energetic sound, while the “Classical” setting might provide a more balanced soundstage.
• Electronic Controls: The JWM92A features electronic controls for volume, bass, treble, balance, fader, and even subwoofer output. Unlike mechanical controls, which can wear out over time, electronic controls offer greater precision and reliability. They also allow for features like preset EQ settings and independent zone volume control.
• White LED Backlit LCD: The clear, white LED backlit display ensures excellent visibility in various lighting conditions, whether you’re driving during the day or relaxing in your RV at night. The crisp display allows you to easily see the current source, track information, and settings. The display however is not without complaint. Some users have reported difficulty seeing the screen when viewed at an angle.
• Slimline, Wall-Mount Design: The JWM92A’s space-saving design is perfect for RVs, where every inch counts. The unit mounts flush against the wall, minimizing its footprint and providing a clean, uncluttered look. The included mounting hardware and clear instructions make installation straightforward, although some users recommend having it professionally installed to ensure optimal performance and avoid any potential issues.

The Jensen Legacy: A History of Innovation

Jensen has a long and storied history in the audio industry, dating back to 1915 when Peter Jensen co-invented the first moving-coil loudspeaker. Throughout the 20th century, Jensen became synonymous with high-fidelity sound, producing iconic speakers and audio components for home and automotive applications.

Today, as a part of ASA Electronics, Jensen continues this legacy of innovation, focusing on developing cutting-edge audio and video solutions specifically designed for the RV, marine, and heavy-duty markets. The JWM92A is a testament to their commitment to providing high-quality, durable, and user-friendly products that enhance the mobile lifestyle.

The Importance of Proper Installation

While the JWM92A is designed for user-friendly operation, proper installation is crucial for optimal performance and longevity. Here’s why:

• Secure Mounting: RVs are subject to vibrations and movement, especially while in transit. Securely mounting the JWM92A to a solid surface will prevent damage and ensure reliable operation.
• Proper Wiring: Correctly connecting the power, speaker, and antenna wires is essential for optimal sound quality and to avoid electrical issues. Following the wiring diagram provided in the manual is crucial. If you are not comfortable working with electrical wiring, it’s best to consult a qualified installer.
• Antenna Placement: For optimal AM/FM reception, the antenna should be properly positioned and extended. Interference from metal objects can affect signal quality, so careful placement is important.

Remember: Before you begin the installation process, please make sure to remove the shipping screws. Failing to do so may result in issues with the unit’s functionality.

Amplifier Technology: The Heart of the System

At the heart of the JWM92A lies a powerful 20W x 8 amplifier. But what does this mean in practical terms? The amplifier’s job is to take the relatively weak audio signal from the source (e.g., Bluetooth, DVD player, radio) and boost it to a level that can drive the speakers, producing the sound you hear.

The JWM92A likely employs a Class-D amplifier, a highly efficient type of amplifier that has become increasingly popular in modern audio systems.

Class-D Amplifier Basics: Unlike traditional Class-A or Class-AB amplifiers, which are always “on” and generate significant heat, Class-D amplifiers use a technique called Pulse Width Modulation (PWM) to rapidly switch the output transistors on and off. This switching action creates a series of pulses whose width corresponds to the amplitude of the audio signal. A low-pass filter then smooths out these pulses, reconstructing the original audio signal but with much greater power.

Advantages of Class-D:

• High Efficiency: Class-D amplifiers are typically 80-90% efficient, meaning that most of the electrical energy is converted into sound, with minimal energy lost as heat. This is particularly important in an RV, where power conservation is often a concern.
• Compact Size: Due to their high efficiency and reduced heat generation, Class-D amplifiers can be much smaller and lighter than traditional amplifiers.
• Cool Operation: Less heat generation translates to cooler operation, which improves reliability and longevity.

Digital Signal Processing (DSP): Shaping the Sound

The JWM92A incorporates Digital Signal Processing (DSP), a powerful technology that allows for precise manipulation of the audio signal. Think of DSP as a sophisticated audio editor that can fine-tune various aspects of the sound before it reaches the speakers.

What can DSP do?

• Equalization: DSP enables the JWM92A’s preset equalizer settings (User, Flat, Pop, Classical, Rock). Each setting adjusts the balance of different frequency ranges (bass, midrange, treble) to enhance specific genres of music or tailor the sound to your preference.
• Crossover: In a multi-speaker system, a crossover divides the audio signal into different frequency ranges and directs them to the appropriate speakers (e.g., low frequencies to the subwoofer, high frequencies to the tweeters). DSP can create very precise crossovers, ensuring optimal performance from each speaker.
• Time Alignment: In some cases, the sound from different speakers may reach your ears at slightly different times, causing a blurred or muddled sound. DSP can introduce tiny delays to individual speakers, ensuring that the sound arrives at your ears in perfect synchronization, creating a more accurate and immersive soundstage. This is also referred to as “phase coherence.”
• Dynamic Range Control: DSP can compress the dynamic range of the audio signal, reducing the difference between the loudest and quietest parts. This can be useful in an RV environment, where you might want to avoid sudden volume spikes that could disturb others.

MPEG-2 Video Encoding: A Legacy Standard

The JWM92A’s DVD player utilizes MPEG-2 video encoding, a widely adopted standard for digital video compression. While newer codecs like H.264 (AVC) and H.265 (HEVC) offer higher compression efficiency, MPEG-2 remains relevant due to its broad compatibility and relatively low processing requirements.

How does it work? MPEG-2 compression works by reducing redundancy in the video data. It analyzes each frame of the video and identifies areas that are similar to previous frames. Instead of storing the entire frame, it only stores the differences, significantly reducing the file size. This process involves techniques like motion estimation and discrete cosine transform (DCT). While not as efficient as modern codecs, MPEG-2 still delivers decent video quality, especially for standard-definition content. It’s important to remember that the JWM92A is primarily an audio device.

Conclusion

The Jensen JWM92A represents a significant advancement in RV entertainment technology. By seamlessly integrating core features like Bluetooth wireless audio, HDMI ARC, and multi-zone audio with a host of other well-considered functionalities, it delivers a powerful, versatile, and user-friendly entertainment experience. While it has some minor drawbacks, as noted in user feedback, its overall performance and comprehensive feature set make it a compelling choice for any RVer seeking to upgrade their mobile entertainment setup. As technology continues to evolve, we can expect even more sophisticated and integrated RV entertainment systems in the future, further blurring the lines between the comforts of home and the adventure of the open road. The JWM92A stands as a shining example of how far we’ve come, and a glimpse into the exciting possibilities that lie ahead.