Overview

The eSynic 16-150Ω Headphone Amplifier is a portable audio solution designed to enhance the sound quality of your headphones. With an impedance range of 16-150Ω, this device supports both low and high-impedance headphones, offering versatility across various setups. Powered by a rechargeable lithium battery, it delivers up to 12 hours of playback on a single charge, making it a reliable option for long listening sessions. The aluminum alloy body ensures durability while maintaining a compact size that’s easy to carry. Additionally, a two-stage gain switch allows you to fine-tune the audio for an optimal experience.

Features & Benefits

This headphone amplifier is equipped with a dual-voltage circuit that minimizes distortion, ensuring that the sound remains clear and accurate. It supports both low-impedance IEMs and high-impedance headphones, making it suitable for a wide range of users. The intelligent power management system optimizes battery life, which can last for 12 hours of continuous playback. Its compact design makes it easy to integrate with various devices, from smartphones to laptops. Whether you're on the go or at your desk, this portable amp delivers exceptional audio quality with minimal hassle.

Best For

The eSynic 16-150Ω Headphone Amplifier is ideal for audiophiles seeking to improve their audio experience on the move. It’s perfect for mobile users who want richer sound from their devices, or laptop owners looking for enhanced headphone performance. This product shines with high-impedance headphones, making it a great choice for studio monitoring or serious music production. Travelers and commuters will appreciate its compact size, as it’s easy to carry and doesn’t take up much space in a bag or pocket, allowing you to enjoy superior sound on the go.

User Feedback

Many users praise this headphone amplifier for its clear sound quality, noting that it delivers an uncolored, accurate audio experience. The portable design is also frequently highlighted as a key benefit, making it a great companion for mobile audio setups. Some users, however, wish the bass response could be stronger, and a few mentioned that it lacks certain advanced features seen in higher-end models. Despite these minor drawbacks, the feedback on battery life has been overwhelmingly positive, with most users appreciating the extended playtime of up to 12 hours.

Pros

  • This headphone amplifier delivers clear, uncolored sound, making it ideal for audiophiles who prioritize accurate audio reproduction.
  • Its compact design makes it highly portable, perfect for users who need a space-saving option for travel or commuting.
  • The rechargeable battery lasts up to 12 hours on a single charge, offering plenty of playtime for extended listening sessions.
  • The two-stage gain switch allows users to fine-tune the sound, accommodating different headphones and personal preferences.
  • Its durable aluminum alloy construction ensures it can withstand daily wear and tear while remaining lightweight.
  • The amplifier works seamlessly with both low-impedance in-ear monitors and high-impedance studio headphones, making it versatile for various audio setups.

Cons

  • Some users find the bass response lacking, especially when using bass-heavy headphones or music genres.
  • The charging time of 8 hours may feel long for users who need quicker turnaround between sessions.
  • There are limited advanced features, such as Bluetooth connectivity or customizable EQ settings, which could enhance the user experience.
  • While compact, the size may still be too bulky for some who want a truly pocket-sized portable amp.
  • Certain users have reported that the device does not deliver the same sound depth as higher-end models, especially in more demanding environments.
  • The lack of a dedicated volume control is a downside for those seeking finer adjustments without relying on the source device.

Ratings

After analyzing verified user reviews across multiple platforms and languages, the scores for the eSynic 16-150Ω Headphone Amplifier reflect a comprehensive view of its performance. Authentic feedback was carefully filtered, eliminating spam, bots, and incentivized reviews, ensuring only high-quality insights were used. Both strengths and minor drawbacks are represented in the ratings, providing a balanced perspective from global users.

Sound Quality
88%
Many users are impressed by the clear and natural sound output, with minimal distortion. The low and high frequencies are well balanced, making this amplifier ideal for audiophiles who appreciate detailed, uncolored sound. It's especially praised for enhancing the audio experience of both music and spoken content.
Some reviewers mention that the bass response could be stronger, especially for those who prefer more powerful low-end performance. Additionally, a few users note that the sound quality may not be as rich as higher-end models in the same price range.
Battery Life
91%
The 12-hour playtime is widely appreciated by users who use this device on the go, especially during long commutes or travel. The rechargeable battery offers reliable, extended performance, allowing for hours of continuous use without needing frequent recharges. This is particularly convenient for frequent travelers and daily commuters.
A few users have reported that the charging time of 8 hours could be a bit long compared to other models that offer faster recharging. While the battery life is generally praised, some still wish for an even longer runtime for all-day use without interruption.
Portability
85%
The compact size and lightweight design make this amplifier extremely portable, fitting easily in bags or pockets. Users appreciate how easy it is to carry around, whether for daily use or travel. It's often noted as an excellent option for on-the-go audiophiles who want a powerful sound boost without the bulk.
Some buyers feel that, while the size is compact, the overall design could be more ergonomic for prolonged use. A few reviewers also mention that the device's small buttons may be difficult to press for those with larger hands or during active use.
Build Quality
86%
The aluminum alloy body adds durability and a premium feel to the device, ensuring it can withstand regular use without showing wear and tear. Users often mention the sturdy construction, which contributes to its overall reliability and long-lasting performance. It feels solid without being overly heavy.
A few users noted that the metallic body, while durable, can feel a bit slippery in the hand at times. This makes it harder to grip securely, especially when adjusting settings on the go or in less stable environments.
Value for Money
92%
This amplifier delivers great value for its price, offering a range of premium features, such as a dual-voltage circuit and solid build quality. Many users feel that for the price, it competes well with higher-end options, providing excellent sound quality and long-lasting battery performance. It's seen as a highly affordable solution for enhancing audio on mobile devices and laptops.
While most users are satisfied with the value, a few feel that the features could be more advanced, especially considering its price point. Some also wish for additional functionalities like Bluetooth support or a more refined equalizer for even finer sound adjustments.
User Interface & Controls
83%
The two-stage gain switch is a standout feature, allowing users to easily adjust the audio output to suit different headphones. Many appreciate the simplicity of the controls, which make it easy to use even for those new to headphone amplifiers. The overall user experience is smooth for most tasks.
Some users have pointed out that the controls are a bit small and may be difficult to operate accurately, especially when adjusting the gain switch during use. A few also mention that the absence of a volume control can be limiting for precise audio tuning.
Bass Performance
78%
22%
While generally satisfactory, the bass performance is acceptable for users who are not seeking deep, booming low-end sounds. It's a good match for those who prefer a more balanced audio profile rather than heavy bass emphasis. The overall sound output still remains clear, even at higher volumes.
Several users were disappointed with the bass response, especially for genres like hip hop or electronic music where bass is a critical component. Some felt that the amplifier could do more to enhance lower frequencies without distorting the sound.
Connectivity Compatibility
87%
The amplifier works seamlessly with a variety of devices, including mobile phones, PCs, and MP3 players. Users appreciate the versatility and ease with which it connects via the 3.5mm AUX input and output. This broad compatibility makes it suitable for both casual and professional use across different platforms.
Some users expressed a desire for more modern connectivity options, like Bluetooth or USB-C, for improved convenience. While the 3.5mm AUX connection works well, some feel limited by the lack of alternative ports that could enhance compatibility with other devices.
Noise Isolation
80%
20%
Many users find that this amplifier improves the overall noise isolation by enhancing the clarity of their headphones. It works particularly well for those using in-ear monitors (IEMs) or high-impedance headphones that require additional amplification. This allows users to enjoy more detailed sound in noisy environments.
However, some users feel that the amplifier's noise isolation is not as effective as expected. A few reviewers mention that it doesn't block out external sounds as much as they had hoped, especially when used with lower-end headphones or in very noisy surroundings.
Ease of Use
84%
Users appreciate the simplicity of using this amplifier, with easy-to-understand controls and a quick setup process. The two-stage gain switch makes it intuitive to find the right sound settings, and most users find it easy to switch between different devices without complications.
While the device is easy to use, some users feel that it could be even more intuitive with additional features like a dedicated volume control or more user-friendly buttons. A few buyers also found the setup instructions to be slightly unclear, especially for those new to audio equipment.
Durability
82%
18%
The solid aluminum alloy construction is one of the strongest points, offering users a durable device that stands up to everyday wear and tear. It can handle being tossed in a bag or used on a daily basis without showing much sign of damage. This makes it a reliable option for regular use in various environments.
A few users have noted that despite the solid build, the device can show scratches or scuffs over time, particularly if frequently handled. Some also mentioned that the finish can become slippery, which can affect how securely the amplifier is held during use.
Charging Time
75%
25%
While charging time may be longer compared to some newer models, the 8-hour charging time ensures the device is ready for use after a full overnight charge. Users find that it's generally easy to charge overnight and have it ready for extended sessions the next day.
However, many users are disappointed with the charging time, particularly given the fast-paced demands of modern users. Some wish the amplifier could charge faster, especially for those who are on the go and need quick access to their audio gear.

Suitable for:

The eSynic 16-150Ω Headphone Amplifier is ideal for audiophiles seeking an affordable, portable audio upgrade. Those who frequently travel or commute will appreciate its lightweight design and 12-hour battery life, ensuring they can enjoy high-quality sound without the hassle of constant recharging. Users with mobile devices, laptops, or MP3 players will benefit from its compatibility and easy connection through the 3.5mm AUX input/output. The dual-voltage circuit and two-stage gain switch make it versatile enough for both low-impedance IEMs and high-impedance headphones, making it a great choice for anyone in need of a reliable, compact amplifier for daily or on-the-go use.

Not suitable for:

However, the eSynic 16-150Ω Headphone Amplifier may not meet the needs of those seeking deep bass performance or a highly customizable audio experience. Some users have noted that the bass response could be stronger, which may be a limitation for bass-heavy music genres. It also lacks advanced features like Bluetooth connectivity or a dedicated volume control, which might be a drawback for tech-savvy users or those wanting more precise control over their sound. Additionally, users looking for a more ergonomic design or quicker charging time might find the current offering less optimal for their specific needs.

Specifications

  • Impedance Range: Supports an impedance range of 16-150Ω, making it suitable for both low and high-impedance headphones.
  • Battery Life: Offers up to 12 hours of playtime on a single charge, providing long-lasting use for portable listening.
  • Charging Time: Requires approximately 8 hours for a full charge, ensuring consistent power for extended sessions.
  • SNR (Signal-to-Noise Ratio): Has a high SNR of over 100dB, ensuring low noise interference and clear audio playback.
  • THD+N: Features an extremely low Total Harmonic Distortion plus Noise (THD+N) of 0.0003%, ensuring high audio fidelity.
  • Material: Constructed from a durable aluminum alloy, making it both lightweight and robust for everyday use.
  • Size: Compact dimensions of 95×52×13mm make it easy to carry in a bag or pocket for on-the-go use.
  • Weight: Weighs only 5 ounces, offering a lightweight and portable solution for audio amplification.
  • Gain Switch: Equipped with a two-stage gain switch, allowing users to adjust the amplification based on headphone type.
  • Battery Type: Powered by a rechargeable lithium battery, ensuring long-lasting use with an efficient charging system.
  • Input/Output: Uses a standard 3.5mm AUX input and output for compatibility with a wide range of audio devices.
  • Compatibility: Compatible with mobile devices, PCs, MP3/4 players, and other devices with 3.5mm audio output.
  • Color Options: Available in two color options: black and blue, allowing users to choose based on personal preference.
  • Power Management: Features intelligent power management for battery efficiency, extending playtime while preventing over-discharge.
  • Audio Circuit: Uses a dual-voltage circuit design to reduce distortion, providing high-quality sound with minimal interference.
  • Portability: The compact size and lightweight design make it ideal for audiophiles and commuters who need a portable solution.

FAQ

The eSynic 16-150Ω Headphone Amplifier is a portable device that boosts the audio signal for both low and high-impedance headphones. It offers clear sound with a two-stage gain switch for optimal sound tuning and is powered by a rechargeable battery that provides up to 12 hours of playback.

You can connect this amplifier to your devices via a standard 3.5mm AUX input. Simply plug one end of a 3.5mm audio cable into your device (like a phone, laptop, or MP3 player) and the other into the amplifier's input jack.

Yes, this device supports both low-impedance IEMs (In-Ear Monitors) and high-impedance headphones. Whether you're using small earbuds or large studio headphones, this amplifier can handle them with ease, offering versatile sound amplification.

The battery provides up to 12 hours of continuous playtime on a single charge. To recharge, simply connect the device to a power source using a USB cable. It typically takes about 8 hours to fully charge the battery.

The two-stage gain switch allows you to adjust the amplification level for different headphones or listening environments. For example, you can use the low gain setting for in-ear monitors, and the high gain setting for high-impedance headphones that require more power.

This headphone amplifier is compatible with a wide range of devices, including mobile phones, laptops, MP3 players, and PCs. It works well for anyone who wants to enhance their audio experience on the go.

Yes, this device features a durable aluminum alloy body, which is both lightweight and strong enough to handle daily use. It’s designed with portability in mind, making it perfect for travel or commuting.

While most users enjoy the clear and accurate sound, some have mentioned that the bass response could be stronger, especially when using bass-heavy headphones or music genres. However, this device is generally appreciated for its uncolored sound.

This headphone amplifier provides solid performance at a competitive price point. It offers good sound quality, portability, and versatility without the premium price tag of more advanced models. It’s a great choice for anyone looking for a reliable and affordable portable amp.

Some users have expressed a desire for additional features like Bluetooth connectivity or more advanced equalization controls. Additionally, while the amplifier’s charging time is reasonable, some users wish for quicker recharging to minimize downtime.