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於B&O專賣店試聽BeoLab 4
爵士和聲樂很動聽, 但因欠缺強勁的低音, 搖滾及電子樂沒有重量感
弦樂表現平平 (*見補註)
和BeoLab 3比較
BeoLab 3低音豐厚但聲音的透明度不如BeoLab 4
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Audio Codecs
Choosing the best codec
MP3
Advanced Audio Coding (AAC)
Apple Lossless (ALAC)
FLAC
Lossless comparison
軟體
iTunes
LAME
參考
iPod
BBC News: Wi-fi music player gets serious
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補註:
Bang & Olufsen BeoLab 4 Loudspeakers
Specifications
Dimensions: Length 21.5 cm / Width 19.7 cm / Height 20.5 cm / Weight 1,7 kg
Power consumption: Typical: 7 watts / Stand-by: 0.5 watts
Power amplifier, bass: 35 watts, Class D, ICEpower®
Power amplifier, treble: 35 watts, Class D, ICEpower®
Effective Frequency range : 50 - 20.000 Hz
Crossover frequency: 3.300 Hz
Cabinet principle: Bass reflex
Net volume, bass: 1.55 litres
Magnetically shielded: No
Woofer: 101.6 mm (4"), concave diaphragm
Tweeter: 19 mm (¾"), fabric dome
Bass equalization: ABL (Adaptive Bass Linearization)
Input sensitivity (Power Link): 125 mV (88dB SPL)
Input sensitivity (line): 125 mV (88dB SPL) - Auto switch on
Switch off time (line): 3 min.
Protection: Thermal protection of tweeter and amplifier/SMPS.
BeoLab 4可搭配preamplifier或連接個人電腦使用
例如連接至Apple PowerBook G4膝上型電腦, 配合iTunes內建的Sound Enhancer以及Equalizer的調整可呈現豐富的音場及音域變化
(觀賞DVD影片時可將DVD Player的Audio Equalizer開啟並調至Bass and Vocal Boost)
[2006/12/18]
