Динамик СЧ/НЧ SCANSPEAK 21W/8555-10. Инструкция на английском языке

WOOFER                                                    21W/8555-10
The 21W/8555-10 is a mechanically upgraded version of 21W/8555-00, its major
change is the a alu chassis, that maintain same shape, dimensions and visual
appearance. The patented Symmetric Drive (SD-1) concept with copper in the
magnet system and carbonfiber paper cone and low loss linear suspension continues
to be the key features that make the 21W/8555-10 one of the best 8” woofers
available.
KEY FEATURES:
· Patented Symmetrical Drive Motor Design SD-1  · Die Cast Alu. Chassis
· Low-Loss linear suspension              · Air Dried Paper/Carbon Fibre Cone
· Low Damping SBR Rubber Surround         · 42mm Voice Coil
T-S Parameters                                Electrical Data
Resonance frequency [fs]       20 Hz          Nominal impedance [Zn]           8 ?
Mechanical Q factor [Qms]       4.50          Minimum impedance [Zmin]        6.4 ?
Electrical Q factor [Qes]       0.33          Maximum impedance [Zo]         80.5 ?
Total Q factor [Qts]            0.31          DC resistance [Re]              5.5 ?
Force factor [Bl]             8.2 Tm          Voice coil inductance [Le]    0.4 mH
Mechanical resistance [Rms]  0.89 kg/s
Power Handling
Moving mass [Mms]               32 g
100h RMS noise test (IEC 17.1)  100 W
Compliance [Cms]           1.98 mm/N
Long-term max power (IEC 17.3)  160 W
Effective diaph. diameter [D]  167 mm
Effective piston area [Sd]   220 cm?           Voice Coil & Magnet Data
Equivalent volume [Vas]         134 l         Voice coil diameter            42 mm
Sensitivity (2.83V/1m)         87 dB          Voice coil height              19 mm
Ratio Bl/vRe               3.50 N/vW          Voice coil layers                  2
Height of gap                   6 mm
Ratio fs/Qts                   65 Hz
Linear excursion             ± 6.5 mm
Notes:                                        Max mech. excursion          ± 12 mm
IEC specs. refer to IEC 60268-5 third edition.   Unit weight                2.2 kg
All Scan-Speak products are RoHS compliant.
Data are subject to change without notice.
Datasheet updated: January 22, 2016.
N.C. Madsensvej 1 · 6920 Videb?k · Denmark · Phone: +45 6040 5200 · www.scan-speak.dk

WOOFER                                                    21W/8555-10
Advanced Parameters (Preliminary)
Electrical data                               Mechanical Data
Resistance [Re']              5.58 ?          Force Factor [Bl]             7.81 Tm
Free inductance [Leb]       0.158 mH          Moving mass [Mms]              33.9 g
Bound inductance [Le]        2.04 mH          Compliance [Cms]           1.22 mm/N
Semi-inductance [Ke]        0.033 SH          Mechanical resistance [Rms]  0.70 kg/s
Shunt resistance [Rss]         101 ?          Admittance [Ams]           0.09 mm/N
N.C. Madsensvej 1 · 6920 Videb?k · Denmark · Phone: +45 6040 5200 · www.scan-speak.dk