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发表于 2010-6-6 21:28
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KEF 104 aB——人称大3/5a
介绍下KEF 104 aB :高音T27(蓝黑线,同3/5a)-中低音单元B200 -辅助低音B139(著名的足球场)参数:
Model 104 ab Specifications
Harmonic Distortion
| <1% THD 100-30,000 Hz
rel 96dB SPL at 400 Hz
| Dividing Frequencies
| 45 Hz (acoustically coupled)
3,000 Hz (electrical cut-off slope 18dB/8ve
| Rated Max. Power
| 50 watts programme
| Continuous Sine
| 20v (50w) 100-2,500 Hz
| Amplifier Requirements
| 15 to 50 watts into 8 ohms
| Wave Rating
| reducing to 8v (8w) above 3kHz
| Nominal Freq. Range
| 30-40,000 Hz
| Nominal Impedance
| 8 ohms
| Specific Freq. Response
| +/-2dB 50-20,000 Hz
+/-5dB 35-35,000 Hz
-10dB at 30 Hz
| System Resonance
| Mechanical reflex 35 Hz
| Sensitivity
| 12.5 watts into nominal 8 ohms produces 96dB at one metre and 400 Hz in anechoic conditions
| Weight
| 15.8 kg (34.75 lb) net
21.0 kg (46.2 lb) packed
| Internal Volume
| 35.5 litres
| Room Size
| Up to 280 cubic metres (10,000 cu ft)
| Finishes
| Walnut, teak, white
| Dimensions
| 630 x 330 x 260 mm
24.8 x 13 x 10.23 in
| Acoustic Contour Control
| 3 positions +/-2dB centred on 1.5 kHz
| Grille
| Black Microcellular Foam
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