Usher Transparent Midbass w/ Bullet Phase Plug S-520 Bookshelf Speaker Piano Gloss Black

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★★★★★ Darko Audio | What Hi*Fi? | Stereophile Highly Recommend 强力推荐！🤩  
Pure Craftmanship in Taiwan w/ Piano Gloss Black Finish
Transparent Polypropylene 5″ Mid-bass Driver w/ Bullet Phase Plug
台湾打造，钢琴黑亮光饰面  
透明聚丙烯5″中低音单元，带子弹型相位锥  

"The Usher S-520 is a remarkable bookshelf speaker that punches above its weight with outstanding midrange and high-frequency resolution, natural sound, and solid bass performance. For anyone looking for quality sound in an affordable and attractive package, the S-520 is a clear standout."~ Robert J. Reina - Stereophile 
“Usher S-520是一款非凡的书架音箱，在中频和高频解析度、自然音质以及扎实的低音表现上超越同级产品。对于那些寻找高性价比且外观吸引人的优质音箱的人来说，S-520无疑是最佳选择。”~ Robert J. Reina - *Stereophile*  

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现价仅 RM1680，附原装网罩和跳线！🤯 将它放在您的Hi-Fi音箱架上！🤩 炫耀吧 ~
CONDITION 品像: 7/10 = Good | 好

SOUND QUALITY REVIEW（音色评测）:🤩
- Detailed and natural midrange resolution.
- High frequencies are detailed and uncolored, with a slight highlight in the lower highs (2–4kHz) that aids in detail but does not create harshness.
- Highs lack some top-octave "air" and room ambience but do not sound dark.
- Female vocals are reproduced beautifully, sounding rich and holographic.
- Percussion, such as cymbals and vibes, is detailed and natural.
- Midbass is neutral, occasionally warm with certain recordings.
- Low bass is capable and realistic, particularly with classical music, but not room-shaking.
- Handles rock and high-volume music without strain or distortion.
- Slight forward tenseness noted during loud, highly modulated upper-midrange passages but no compression or harshness.
- Compared favorably with similarly priced speakers:
  - More extended and realistic bass than the Infinity Primus 150.
  - Slightly less midrange detail than the Wharfedale Diamond 9.1 but comparable dynamic performance.
  - Not as detailed in high frequencies as the Epos ELS 3 but better at handling loud passages.
- Offers excellent value with many strengths and minimal shortcomings.

- 中频解析度细腻自然。
- 高频细致且无染色，2–4kHz范围内有轻微突出，增强细节但不显刺耳。
- 高频缺乏一些顶端的“空气感”和房间氛围，但不显得黯淡。
- 女声重现极其出色，音色丰富且具有立体感。
- 打击乐器如镲片和电颤琴表现细腻自然。
- 中低音中性，在某些录音中偶尔会显得温暖。
- 低频真实有力，尤其是在古典音乐中表现出色，但不会震撼整个房间。
- 能够应对摇滚和高音量音乐，无失真或压力。
- 在高强度中高频能量段的响亮段落中有轻微的前倾紧张感，但无压缩或刺耳感。
- 与同价位音箱对比：
  - 低频延展和真实感优于Infinity Primus 150。
  - 中频细节略逊于Wharfedale Diamond 9.1，但动态表现相当。
  - 高频细致度不如Epos ELS 3，但在处理响亮段落时表现更佳。
- 具有极高性价比，优点众多，缺点极少。

DESIGN & TECHNOLOGY 设计与科技:
- Entry-level bookshelf speaker from Usher Audio Technology, Taiwan
- Co-designed by Dr. Joseph D'Appolito (US) and Tsai Lien-Shui (Taiwan)
- Two-way, front-ported design featuring:
  - 1" silk-dome tweeter
  - 5" polypropylene mid-bass cone
- Uses proprietary Symme-Motion technology for symmetrical diaphragm movement
- Crossover built with audiophile-grade polypropylene capacitors, air-core inductors, and high-purity OFC internal wiring
- Low-loss, low-phase-shift crossover circuit for high efficiency
- Grilles recommended off for optimal sound quality
- Cabinet described as modern and attractive

- 入门级书架音箱，由台湾的 Usher Audio Technology 生产
- 由美国的 Joseph D'Appolito 博士和台湾的 Tsai Lien-Shui 共同设计
- 双路、前置导向孔设计，配备：
  - 1 英寸丝膜高音单元
  - 5 英寸聚丙烯中低音单元
- 使用 Usher 独有的 Symme-Motion 技术，确保振膜的前后运动对称
- 分频器使用高端聚丙烯电容器、空气芯电感以及高纯度无氧铜 (OFC) 内部接线
- 低损耗、低相移的分频电路，效率高
- 推荐拆下网罩使用，以获得最佳音质
- 箱体设计现代美观

SPECIFICATIONS 规格:🧾
- Two-way front-ported bookshelf loudspeaker
- Drive-units: 1" UA25-10 silk-dome tweeter, 5" KSW2-5029B polypropylene-cone mid-woofer
- Sensitivity: 86dB/W/m
- Nominal impedance: 8 ohms
- Frequency response: 55Hz–20kHz, –3dB
- Power handling: 50W
- Crossover frequency: 2kHz
- Dimensions: 7.1" (180mm) W by 11.8" (300mm) H by 9.8" (250mm) D
- Weight: 13.9 lbs (6.3kg)
- Finishes: Birch veneer; $25/pair extra for Matte Black, Gloss Black, or Gloss White
- Serial numbers of units reviewed: 039515 & '516
- Approximate number of dealers: 37
- Manufacturer: Usher Audio Technology, 67 Kai-Fong Street, Section 1, Taipei 10041, Taiwan. Tel: (886) 2-23816299. Web: www.usheraudio.com
- US distributor: Thee High End, 6923 Inwood Road, Dallas, TX 75209. Tel: (214) 704-6082. Web: www.theehighend.com

REFERENCES 根据:🫡
1. https://www.stereophile.com/standloudspeakers/1205usher/index.html
2. https://darko.audio/2011/01/usher-s-520-standmount-loudspeaker/

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