Динамик ВЧ SCANSPEAK D2904/710003. Инструкция на английском языке

TWEETER                                                   D2904/710003
The Revelator Tweeters large roll surround technology represents a breakthrough in
overall performance, with outstanding off-axis response, high output capability and low
resonance frequency. Additional enhancements have been made to reduce distortion
and power compression, such as large neodymium magnet systems for high
sensitivity, and a careful design to optimise airflow in the chambers.
KEY FEATURES:
? 1" Coated Textile Diaphragm              ? Large Roll Surround f. Wide Dispersion
? Patented Symmetrical Drive (SD-2) motor    ? Large Ring Neo Magnet f. High Output
? Non Resonant Alu Rear Chamber            ? Black Anodized Machined Alu Face Plate
T-S Parameters                                  Electrical Data
Resonance frequency [fs]       520 Hz           Nominal impedance [Zn]           4 ?
Mechanical Q factor [Qms]        3.50           Minimum impedance [Zmin]        3.7 ?
Electrical Q factor [Qes]        0.50           Maximum impedance [Zo]         24.0 ?
Total Q factor [Qts]             0.44           DC resistance [Re]               3 ?
Force factor [Bl]              2.8 Tm           Voice coil inductance [Le]    0.01 mH
Mechanical resistance [Rms]  0.37 kg/s
Power Handling
Moving mass [Mms]                0.4 g
100h RMS noise test (IEC 17.1)*  90 W
Suspension compliance [Cms]  0.23 mm/N
Long-term max power (IEC 17.3)*  150 W
Effective diaph. diameter [D]  30 mm
*Filter: 2. order HP Butterworth, 2.5 kHz
Effective piston area [Sd]      7 cm?
Voice Coil and Magnet Data
Equivalent volume [Vas]         0.02 l
Voice coil diameter             26 mm
Sensitivity (2.83V/1m)         94.4 dB
Voice coil height              2.4 mm
Ratio Bl/vRe                1.62 N/vW
Voice coil layers                   2
Ratio fs/Qts                  1189 Hz
Height of gap                  2.5 mm
Notes:                                         Linear excursion              ± 0.2 mm
IEC specs. refer to IEC 60268-5 third edition.   Max mech. excursion         ± 1.6 mm
All Scan-Speak products are RoHS compliant.
Data are subject to change without notice.     Unit weight                     0.4 kg
Datasheet updated: February 22, 2011.
N.C. Madsensvej 1 ? 6920 Videb?k ? Denmark ? Phone: +45 6040 5200 ? www.scan-speak.dk

TWEETER                                                   D2904/710003
Advanced Parameters (Preliminary)
Electrical data:                                Mechanical Data
Resistance [Re']                  - ?           Force Factor [Bl]               - Tm
Free inductance [Leb]            - mH           Moving mass [Mms]                 - g
Bound inductance [Le]            - mH           Compliance [Cms]              - mm/N
Semi-inductance [Ke]             - SH           Mechanical resistance [Rms]     - kg/s
Shunt resistance [Rss]            - ?           Admittance [Ams]              - mm/N
N.C. Madsensvej 1 ? 6920 Videb?k ? Denmark ? Phone: +45 6040 5200 ? www.scan-speak.dk