Should You Buy Bluetooth Earphones or Wired Earphones?

Introduction

As we step into the year 2023, the debate between choosing Bluetooth (TWS) or wired headphones with a budget of around 500 RMB (Chinese Yuan Renminbi) should be settled by now, right? Yet, some might still have lingering questions. In this article, I aim to shed light on this debate by drawing upon my experience with both types of headphones. I've spent a significant time using the SIMGOT Lozenge EM2R, a wired Hi-Fi headphone in the 500 RMB price range, and more recently, the OPPO Enco Free3, a TWS headphone in the same price range. These two headphones will serve as examples to discuss the differences between wired and TWS headphones in the 500 RMB price bracket.

Wireless Convenience: A Game-Changer

Let's start by acknowledging the most obvious advantage of TWS headphones in this budget range: convenience. Wireless headphones eliminate the hassle of tangled wires, making them a clear winner in terms of ease of use. In an age where most people use their smartphones as their primary audio source for music and video content, the absence of a 3.5mm headphone jack on many devices further cements the convenience factor of TWS headphones.

Sound Quality on Par with Hi-Fi Wired Headphones

One common misconception is that wired Hi-Fi headphones offer superior sound quality compared to TWS headphones. However, this isn't necessarily true. TWS headphones in the 500 RMB price range can provide exceptional sound quality. Let's delve into what impacts sound quality and why TWS headphones can hold their own:

The Crucial Role of Source Quality

First and foremost, the quality of the audio source plays a pivotal role in determining sound quality. The richness of sound detail largely depends on the source. Many music apps feature SQ (Sound Quality) lossless music, which is synonymous with high-quality audio. Some apps even label tracks as "Hi-Res" (High Resolution Audio), denoting audio with sampling rates greater than 44.1kHz and bit depths exceeding 16 bits. Higher sampling rates and bit depths result in better source quality, with more intricate details. TWS headphones, relying on Bluetooth wireless transmission, face limitations in handling high-bitrate sources effectively.

When the same audio source file is played through both wired and wireless headphones on the same device, differences in sound quality primarily arise from three factors:

1. Transmission, Wired vs. Wireless: The medium through which sound travels, be it through wires or wirelessly, affects sound quality.
2. Earphone Acoustic Structure: The design of the earphone's driver and housing plays a significant role in how it reproduces and interprets sound.
3. Sound Tuning: The process of fine-tuning the audio profile also impacts sound quality.

Let's examine each of these factors in detail, starting with the transmission medium.

Transmission Medium: Wired vs. Wireless

Many audiophiles emphasize the importance of high-quality cables for wired Hi-Fi headphones, highlighting the significance of a lossless signal transfer. TWS headphones, on the other hand, rely on wireless transmission protocols, essentially serving as the "cables" for these devices.

To ensure high-quality, lossless transmission, TWS headphones employ advanced wireless protocols. For example, the OPPO Enco Free3 utilizes the LDAC high-resolution audio codec, supporting a maximum transmission rate of 990kbps—three times that of traditional SBC (328kbps). This means that high-quality Hi-Res audio sources can be transmitted wirelessly without loss of quality.

Earphone Acoustic Structure: Dynamic Drivers and Balanced Armatures

Most headphones we encounter utilize dynamic drivers, while balanced armature drivers originally found use in hearing aids due to their precision and compact size. Dynamic drivers and balanced armature drivers have distinct sound reproduction principles, with balanced armatures excelling in high-resolution and fidelity, especially in the higher frequency ranges. When combined, they create the sought-after hybrid drivers found in premium Hi-Fi headphones.

While many TWS headphones feature dual drivers in a coaxial configuration for balanced sound, some, like the OPPO Enco Free3, employ innovative materials like bamboo fiber diaphragms. These diaphragms have a substantial impact on audio quality:

• Reduced Weight: A 60% reduction in weight enhances the high-frequency extension to over 40kHz.
• Enhanced Rigidity: A 56% increase in rigidity effectively suppresses distortion, ensuring high-quality sound.
• Improved Resilience: Better damping properties quickly absorb excess vibrations, resulting in a smoother listening experience.

OPPO Enco Free3 goes a step further by incorporating a front cavity sound filtering system to enhance high-frequency performance and a rear cavity low-frequency duct for balanced bass. The overall result is an impressive audio experience, showcasing the headphones' hardware prowess.

Sound Tuning: The Art of Audio Enhancement

While hardware forms the foundation of audio quality, tuning plays a pivotal role in shaping the final sound profile. Some argue that tuning is akin to an "IQ tax" imposed by audio engineers, but it's more akin to a chef perfecting a dish. Anyone can cook, but creating an exquisite culinary experience takes skill.

TWS headphones, compared to traditional counterparts, are inherently more intelligent. The OPPO Enco Free3, for instance, supports Golden Ears 2.0, which constructs a personalized ear canal sound model through a brief sound test. This tailored approach results in a more nuanced and enjoyable listening experience. Additionally, the headphones support spatial audio effects, enhancing the overall immersion.

Intriguing Sound Quality: Putting It to the Test

To assess the audio quality, I conducted a listening test using a selection of tracks in Hi-Res quality with LDAC protocol:

• Vocal Tracks: "Ferry," "Big Fish," "I Really Like You," "Dream it Possible," "Paper Trails."
• Instrumental Music: "Ambush on All Sides," "Violin and Guitar Duet 'Alegro spirtuoso'," "Why Do We Fall," "Cornfield Chase," "Time."
• Electronic Track: "bad guy."
• Pop Hits: "Rolling In The Deep," "Just Like Fire," "Period," "Hotel California," "Life is on Fire."

While I couldn't magically turn my ears into a lab-grade sound analysis instrument, I could discern certain qualities. In "Ferry," the low frequencies were full-bodied without overpowering, exhibiting clear layering. "Hotel California" showcased precise and crisp drum beats, and intricate details were evident in "Cornfield Chase." However, the standout feature was the high-frequency performance, especially noticeable in "Big Fish," where the high notes lingered beautifully.

In conclusion, the OPPO Enco Free3, with its innovative bamboo fiber diaphragm, delivers impressive sound quality. Its strength lies in its high-frequency performance, making it a top contender in the 500 RMB price range. Remarkably, its audio quality can rival some headphones priced above 1,000 RMB.

Exploring OPPO's Headphone Lineup

Before we wrap up, it's worth exploring OPPO's range of TWS headphones. OPPO offers several series, including X, Free, and Air, catering to different consumer preferences. As per recent reports, the OPPO Enco Air series is positioned as an entry-level option, the OPPO Enco Free series offers a more
Understanding OPPO's Headphone Lineup

Now that we've explored the remarkable qualities of the OPPO Enco Free3, let's delve further into OPPO's diverse TWS headphone lineup. OPPO has tailored different series to cater to various consumer preferences, ensuring that there's a choice for everyone.

1. OPPO Enco Air Series: Entry-Level Excellence The OPPO Enco Air series is positioned as an entry-level choice, offering users a taste of the OPPO audio experience at an affordable price point. While they may not boast the advanced features found in higher-tier models, these headphones are still designed to deliver solid sound quality and comfort. For students or budget-conscious consumers, the OPPO Enco Air3, within the 500 RMB budget range, is a particularly appealing option.
2. OPPO Enco Free Series: Balanced Performance The OPPO Enco Free series represents a step up in terms of quality and features. These headphones strike a balance between affordability and performance, making them a suitable choice for those seeking a more well-rounded audio experience. With innovative features like the bamboo fiber diaphragm, these headphones have earned their place as a top contender in the 500 RMB price segment.
3. OPPO Enco X Series: The Flagship Experience At the pinnacle of OPPO's TWS headphone lineup, we find the OPPO Enco X series. These headphones are designed to provide an exceptional audio experience across the board. With top-notch hardware and meticulous tuning, they cater to audiophiles and those who demand the best of the best. The OPPO Enco X series exemplifies OPPO's commitment to pushing the boundaries of TWS headphone technology.

Q&A

Q1: Are TWS headphones really on par with wired headphones when it comes to sound quality?

A1: Yes, TWS headphones in the 500 RMB price range can indeed offer sound quality that rivals their wired counterparts. Several factors contribute to this. First, the quality of the audio source plays a crucial role, with Hi-Res audio sources providing a foundation for excellent sound. Additionally, advancements in wireless transmission protocols, like LDAC, allow for high-bitrate, lossless audio transmission. Furthermore, innovative materials in TWS headphones, such as bamboo fiber diaphragms, enhance sound quality. Finally, precise sound tuning is essential in shaping the final audio profile, and many TWS headphones offer intelligent sound enhancement features.

Q2: Is the convenience of TWS headphones worth the trade-off in sound quality?

A2: The convenience of TWS headphones, including wireless connectivity and freedom from tangled wires, is a significant advantage that many users find invaluable. In the 500 RMB price range, TWS headphones have made impressive strides in sound quality, often offering a well-balanced and enjoyable listening experience. While there may be slight differences compared to wired headphones, the convenience factor and the quality of sound that TWS headphones can provide make them a compelling choice for many consumers.

Q3: How does OPPO's Enco Free3 stand out in terms of sound quality?

A3: The OPPO Enco Free3 distinguishes itself with its innovative use of a bamboo fiber diaphragm, which significantly enhances sound quality. The diaphragm's lightweight nature extends high-frequency response to over 40kHz, while its increased rigidity effectively reduces distortion. Additionally, its improved resilience quickly absorbs excess vibrations, resulting in a smoother and more pleasing listening experience. These features, combined with precise sound tuning, contribute to the exceptional sound quality of the Enco Free3.

Q4: Are the OPPO Enco Free3 headphones suitable for different music genres?

A4: Yes, the OPPO Enco Free3 is a versatile headphone that can handle a wide range of music genres with finesse. Thanks to its balanced sound profile and high-frequency extension, it performs admirably across various music styles. Whether you enjoy vocal tracks, instrumental music, electronic beats, or pop hits, these headphones will deliver clear and enjoyable sound across the spectrum.

Q5: What sets the OPPO Enco X series apart from other TWS headphones in the market?

A5: The OPPO Enco X series represents OPPO's flagship TWS headphones, offering the most advanced features and exceptional sound quality. What sets them apart is their combination of top-tier hardware, including coaxial dual drivers and advanced materials, and precise tuning by audio experts. These headphones cater to audiophiles and those who demand the ultimate audio experience, making them stand out in the crowded TWS headphone market.

In conclusion, the debate between wired and TWS headphones in the 500 RMB price range is no longer a matter of compromise. TWS headphones, exemplified by the OPPO Enco Free3 and other offerings, offer a compelling blend of convenience and sound quality that can rival their wired counterparts. With options tailored to different needs and preferences, consumers can confidently choose the TWS headphones that best suit their lifestyles and listening preferences.


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