[quote]低温 在 2005-8-24 15:53:09 发表的内容
音箱配功放首先是功率匹配要恰当,其次才是口味。530只有30W/ch(8Ω)的功率,配上一个要求30-180W的箱子,典型的小马拉大车,408的功率达到180W/ch(8Ω),基本符合要求。
如果以1W电功率馈给音箱,大致可以获得87-92dB的声压,如果以此定为听音的0dB,530只有+14.77dB的上限动态,而408可以获得+
22.55dB,那么按照90dB/W-1M的声箱灵敏度平均值计算,总的动态530为105dB, 408为113dB,而交响乐的动态可达120dB。
除此之外,小功率功放的内阻大于大功放,音箱单元的反电动势随标称功率增大而增大,因为大功率单元的音圈导线截面积大、场强高,小马拉大车时高内阻对大的反电动势,控制不住是正常的,有害的,增加了失真。
音箱配功放不是乱盖的。
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Turnberry HE
PERFORMANCE
Recommended Amp. Power: 30-180W
Peak Power Handling: 275W
Max. Sensitivity (2.83 Volts @1m):93dB
Nominal Impedance - Ohms: 8
Frequency Response (-6dB): 34Hz-25kHz
DRIVE UNITS
Dual Concentric HF: 1.3"
Dual Concentric LF: 10"
CROSSOVER TYPE
CABINET
Frequency : 1.3kHz
Dimensions (H x W x D, mm) :
950 x 456 x 336
Weight (kgs) : 36
Finish :
Walnut Veneer with Solid Walnut Edging
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E-530
Continuous Average Output Power : 30W/60W output per channel (8Ω/4Ω)
Frequency Response:20Hz-20kHz +0 -2.0dB
Damping Factor : 120 (8Ω, 50Hz)
Input Sensitivity : 61.7mV (HIGH LEVEL), 11.3mV (EIA)
S/N Ratio (EIA) : 106dB (HIGH LEVEL), 92dB (BALANCED)
Option Board Available : (DAC-10, LINE-10, AD-10)
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E-408
Continuous Average Output Power : 180W/260W output per channel (8Ω/4Ω)
Frequency Response:20Hz-20kHz +0 -0.2dB
2Hz-150KHz +0 -3.0dB
Damping Factor : 120 (8Ω, 50Hz)
Input Sensitivity : 11.2mV (HIGH LEVEL/BALANCED/MAIN) /(EIA For 1W Output)
S/N Ratio : 113dB (HIGH LEVEL), 92dB (BALANCED) ,129dB(MAIN)
Option Board Available : (DAC-10, LINE-10, AD-10)
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只看規格不準...
實際聆聽E-530會強得多..