Динамик СЧ/НЧ SCANSPEAK 18W/8542-00. Инструкция на английском языке

MIDWOOFER                                                   18W/8542-00
The Symmetric Drive (SD) concept with copper in the magnet system was invented by
Scan-Speak. High-quality magnet system design has thus been a key feature of Scan-
Speak design since the companys inception. The Classic woofers are highly praised,
and are used in some of the worlds most exceptional high-end Loudspeakers. Some
feature Kevlar cones, others have the innovative Carbon fibre paper cones.
KEY FEATURES:
? Patented Symmetrical Drive Motor Design    ? Low-Loss linear suspension
? Air Dried Paper/Carbon Fibre Cone        ? Low Damping Coated Foam Surround
? 42mm Voice Coil
T-S Parameters                                  Electrical Data
Resonance frequency [fs]        30 Hz           Nominal impedance [Zn]           8 ?
Mechanical Q factor [Qms]        1.70           Minimum impedance [Zmin]        6.6 ?
Electrical Q factor [Qes]        0.26           Maximum impedance [Zo]         41.5 ?
Total Q factor [Qts]             0.23           DC resistance [Re]              5.5 ?
Force factor [Bl]              7.8 Tm           Voice coil inductance [Le]     0.2 mH
Mechanical resistance [Rms]  1.66 kg/s
Power Handling
Moving mass [Mms]                15 g
100h RMS noise test (IEC 17.1)   70 W
Suspension compliance [Cms]  1.88 mm/N
Long-term max power (IEC 17.3)     - W
Effective diaph. diameter [D]  131 mm
Effective piston area [Sd]    135 cm?          Voice Coil and Magnet Data
Equivalent volume [Vas]         47.9 l         Voice coil diameter             42 mm
Sensitivity (2.83V/1m)          89 dB          Voice coil height               19 mm
Ratio Bl/vRe                3.33 N/vW          Voice coil layers                   2
Height of gap                    6 mm
Ratio fs/Qts                   133 Hz
Linear excursion              ± 6.5 mm
Notes:                                         Max mech. excursion           ± 10 mm
IEC specs. refer to IEC 60268-5 third edition.   Unit weight                   2.1 kg
All Scan-Speak products are RoHS compliant.
Data are subject to change without notice.
Datasheet updated: February 22, 2011.
N.C. Madsensvej 1 ? 6920 Videb?k ? Denmark ? Phone: +45 6040 5200 ? www.scan-speak.dk

MIDWOOFER                                                   18W/8542-00
Advanced Parameters (Preliminary)
Electrical data:                                Mechanical Data
Resistance [Re']               5.58 ?           Force Factor [Bl]             7.45 Tm
Free inductance [Leb]       0.0627 mH           Moving mass [Mms]              16.2 g
Bound inductance [Le]         1.29 mH           Compliance [Cms]           1.07 mm/N
Semi-inductance [Ke]         0.122 SH           Mechanical resistance [Rms]  1.404 kg/s
Shunt resistance [Rss]         3.62 ?           Admittance [Ams]          0.164 mm/N
N.C. Madsensvej 1 ? 6920 Videb?k ? Denmark ? Phone: +45 6040 5200 ? www.scan-speak.dk