Динамик СЧ/НЧ SCANSPEAK 18W/8545-01. Инструкция на английском языке

MIDWOOFER                                                   18W/8545-01
This unit is an improved version of the highly praised 18W/8545-00 midwoofer, where
a new aluminum chassis, an updated cone and a new spider as wells as a few other
details are introduced, these updates improves mechanical stability and sound
performance. High-quality magnet system design with patented Symmetric Drive
(SD-1) continues to be key feature.
KEY FEATURES:
· Patented Symmetrical Drive Motor Design  · Coated Air Dried Paper/Carbon Fibre Cone
· 42mm Voice Coil w. Alu foil             · Low-Loss linear suspension
· Low Damping SBR Rubber Surround         · Aluminium Chassis
T-S Parameters                                  Electrical Data
Resonance frequency [fs]        25 Hz           Nominal impedance [Zn]           8 ?
Mechanical Q factor [Qms]        1.55           Minimum impedance [Zmin]        6.2 ?
Electrical Q factor [Qes]        0.22           Maximum impedance [Zo]          45 ?
Total Q factor [Qts]             0.20           DC resistance [Re]              5.7 ?
Force factor [Bl]              8.4 Tm           Voice coil inductance [Le]    0.39 mH
Mechanical resistance [Rms]   1.8 kg/s
Power Handling
Moving mass [Mms]                18 g
100h RMS noise test (IEC 17.1)  100 W
Suspension compliance [Cms]  2.3 mm/N
Long-term max power (IEC 17.3)     - W
Effective diaph. diameter [D]  136 mm
Effective piston area [Sd]    145 cm?          Voice Coil and Magnet Data
Equivalent volume [Vas]         68.6 l         Voice coil diameter             42 mm
Sensitivity (2.83V/1m)          88 dB          Voice coil height               19 mm
Ratio Bl/vRe                3.53 N/vW          Voice coil layers                   2
Height of gap                    6 mm
Ratio fs/Qts                   125 Hz
Linear excursion              ± 6.5 mm
Notes:                                         Max mech. excursion           ± 10 mm
IEC specs. refer to IEC 60268-5 third edition.   Unit weight                   2.3 kg
All Scan-Speak products are RoHS compliant.
Data are subject to change without notice.
Datasheet updated: January 4, 2012.
N.C. Madsensvej 1 · 6920 Videb?k · Denmark · Phone: +45 6040 5200 · www.scan-speak.dk

MIDWOOFER                                                   18W/8545-01
Advanced Parameters (Preliminary)
Electrical data                                 Mechanical Data
Resistance [Re']               5.92 ?           Force Factor [Bl]              7.0 Tm
Free inductance [Leb]        0.107 mH           Moving mass [Mms]                18 g
Bound inductance [Le]        0.819 mH           Compliance [Cms]           2.05 mm/N
Semi-inductance [Ke]        0.0343 SH           Mechanical resistance [Rms]  1.26 kg/s
Shunt resistance [Rss]        14093 ?           Admittance [Ams]          0.241 mm/N
N.C. Madsensvej 1 · 6920 Videb?k · Denmark · Phone: +45 6040 5200 · www.scan-speak.dk