Anker Soundcore 2
A 12W portable Bluetooth speaker with 24-hour battery life and an IPX7 waterproof rating. While its audio performance is limited, it boasts the best cost-performance in its performance class.
Overview
The Anker Soundcore 2 is an entry-level portable Bluetooth speaker released in 2017. It features 12W (6W×2) output, 24-hour continuous playback time, and IPX7 waterproof performance, designed for price-conscious users. Equipped with dual neodymium drivers and BassUp technology for bass enhancement, this product aims to provide a portable audio experience at an affordable price point.
Scientific Validity
\[\Large \text{0.4}\]While official specifications state a frequency response of 70Hz-20kHz, third-party measurement data (from RTings.com) confirms low-frequency extension down to 69Hz. This is a respectable performance for a compact portable speaker but falls short of the ideal flat response of 20Hz-20kHz. The maximum sound pressure level (Max SPL) is a modest 80dB, which is insufficient for use in large spaces. Total Harmonic Distortion (THD) reaches audible levels, especially in the high-frequency range, and overall measurement performance does not reach a transparent level. The BassUp technology, which relies on DSP processing for bass reinforcement, does not overcome the physical limitations of the drivers and is thus considered to have limited scientific validity.
Technology Level
\[\Large \text{0.3}\]This represents a basic Bluetooth speaker design with no notable technical innovations. The dual 6W driver configuration is standard, and the DSP-based BassUp technology is merely an application of existing technology. Bluetooth 5 support and IPX7 waterproof performance are at the market standard level, but no proprietary technology development or advanced design can be confirmed. The 24-hour playback via a 5,200mAh battery is practical but represents a capacity-focused design rather than technical advancement. Overall, this is a product combining off-the-shelf technologies and is rated below the industry average in technical level.
Cost-Performance
\[\Large \text{1.0}\]The current market price is approximately 39.99 USD. While its successor, the Anker Soundcore 3 (approximately 49.99 USD), offers superior performance, it is more expensive. No alternative has been found that delivers the features and performance of the Soundcore 2 at a lower price. Based on the review policy, since the reviewed product is effectively the cheapest option for its performance level, its cost-performance is rated at a perfect 1.0.
Reliability & Support
\[\Large \text{0.5}\]Anker provides an 18-month warranty, which is on par with competing products in the same price range. The IPX7 waterproof rating ensures reliability for daily use. Anker’s support system is relatively comprehensive with prompt responses to failures. However, due to its low price, replacement is the primary service approach rather than repair. Long-term durability depends on usage frequency and environment, but it provides sufficient reliability for general use. While failure rates and repair data are not disclosed, user reviews do not report major quality issues, rating it at an industry-average reliability level.
Rationality of Design Philosophy
\[\Large \text{0.3}\]While the design philosophy of providing a portable audio experience at a low cost is understandable, the compromises in audio quality are significant. The high Total Harmonic Distortion, in particular, is a major weakness that results in a lack of clarity. The BassUp technology for bass enhancement does not provide a fundamental solution to physical constraints and may, in fact, contribute to distortion. Considering that its successor, the Soundcore 3, has made clear improvements in audio quality, the design of this unit is somewhat outdated. While the waterproof performance and long playback time are commendable, the design philosophy that sacrifices audio quality lacks rationality.
Advice
The Anker Soundcore 2 is an option for users seeking a very inexpensive Bluetooth speaker, but for those who value audio quality even slightly, it is strongly recommended to consider investing a little more in its successor, the Anker Soundcore 3. The Soundcore 3 offers a clearer sound and is likely to provide greater satisfaction for the price difference. It is practical for limited applications where waterproof performance and long playback time are the highest priorities, such as for background music during work, but it will likely feel underpowered for dedicated music listening.
(2025.7.19)