Tannoy B475 用户手册

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页码 12
 
10 
11. Technical Specifications 
 
Frequency response (1)  +/- 3dB   
28Hz - 240Hz 
Recommended Amplifier Power   
400 - 800 Watt / 8
Ω
 
Power Handling   
 
 
Average (2)    
Programme   
Peak (10ms) 
300 Watt 
600 Watt         
1200 Watt 
Sensitivity (1) 
 2.83 volt @ 1m   
 
 
98dB 
  
101dB (half space) 
Maximum SPL (3) 
 
 
Average  
Peak 
 
 
@ 1m 
 
 
 
123dB   
129dB 
Impedance 
 
 
 
Nominal  
8
Ω
 
 
 
 
 
 
 
 
Minimum 
7.8
Ω
 
Distortion 
 
 
0.1 Full Power 
 
 
2
nd
 Harmonic 
 
3
rd
 Harmonic 
 
100 Hz   
 
 
0.22%   
 
0.12% 
 
250 Hz   
 
 
0.23%   
 
0.08% 
0.01 Full Power   
 
2
nd
 Harmonic 
 
3
rd
 Harmonic 
100 Hz   
 
 
0.17%   
 
0.23% 
250 Hz   
 
 
0.21%   
 
0.29% 
Driver Complement 
 
 
1 x 18” High efficiency bass unit Type 4505 
Crossover Point  
 
 
Active: Recommended points 
 
 
 
 
 
70-240 Hz, 24dB/octave, Linkwitz – Riley 
 
 
 
 
 
(dependant on application) 
Enclosure 
 
 
 
168 litre, vented, 18mm multi-ply birch plywood  
Finish   
 
 
 
Textured black/grey paint 
Protective Grille  
 
 
Black Perforated Steel, with 50% free air-flow 
Connectors 
 
 
 
2 × Speakon™ NL4MP – in/out 
Fittings   
 
 
 
8 × M10 flying inserts 
×
 Man pullback point 
 
 
 
 
 
2 × recessed carrying handles 
 
 
 
 
 
×
 pole mount socket 
Dimensions 
 
 
 
577mm (H) × 556mm (W) × 650mm (D) 
 
 
 
 
22.7” (H) × 21.9” (W) × 25.6” (D) 
Weight   
 
 
 
40.0 kg (88 lbs) 
 
 
 
 
NOTES:    
(1) Average over stated bandwidth. Measured at 1m  on axis, in an anechoic  chamber. 
 
 
 
(2) Long term power handling capacity as defined in EIA standard RS - 426A. 
 
 
 
(3) Unweighted pink noise input, measured at 1m 
 
Tannoy operates a policy of continuous research and development. The introduction of new materials or manufacturing 
methods will always equal or exceed the published specifications which Tannoy reserve the right to alter without prior notice. 
Please verify the latest specifications when dealing with critical applications