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积分4386在线时间5007 小时最后登录2025-10-28阅读权限100精华1 
   
 
UID374933帖子4345精华1经验4386 点金钱4341 ¥注册时间2011-8-3 | 
| SUBWOOFER 30W/4558T00 The Discovery series offer traditional design, superior sound, a solid construction, and
 a wide range of variants. Combining these elements - plus a wealth of technical
 features and finesses - it gives our customers the possibility of acquiring a tailor-made
 Scan-Speak solution with very good performance at a reasonable low price point!
 KEY FEATURES:
  56mm Peak Excursion, 25mm Linear
  Low Resonance Freq. 17Hz
  Magnet System w. Alu Ring
  High Output 89dB @ 2,83V
  Anodized Alu Cone, Fibre Glass Dust Cap
  Die cast Alu Chassis vented below spider
 Notes:
 IEC specs. refer to IEC 60268-5 third edition.
 All Scan-Speak products are RoHS compliant.
 Data are subject to change without notice.
 Datasheet updated: February 22, 2011.
 T-S Parameters
 Resonance frequency [fs] 17 Hz
 Mechanical Q factor [Qms] 5.01
 Electrical Q factor [Qes] 0.34
 Total Q factor [Qts] 0.32
 Force factor [Bl] 10.5 Tm
 Mechanical resistance [Rms] 2.88 kg/s
 Moving mass [Mms] 135 g
 Suspension compliance [Cms] 0.65 mm/N
 Effective diaph. diameter [D] 244 mm
 Effective piston area [Sd] 466 cm²
 Equivalent volume [Vas] 197 l
 Sensitivity (2.83V/1m) 89 dB
 Ratio Bl/√Re 6.51 N/√W
 Ratio fs/Qts 53 Hz
 Electrical Data
 Nominal impedance [Zn] 4 N
 Minimum impedance [Zmin] 3.3 N
 Maximum impedance [Zo] 40.9 N
 DC resistance [Re] 2.6 N
 Voice coil inductance [Le] 0.83 mH
 Power Handling
 100h RMS noise test (IEC 17.1) 150 W
 Long-term max power (IEC 17.3) 350 W
 Voice Coil and Magnet Data
 Voice coil diameter 51 mm
 Voice coil height 33 mm
 Voice coil layers 4
 Height of gap 8 mm
 Linear excursion ± 12.5 mm
 Max mech. excursion ± 28 mm
 Unit weight 6.3 kg
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