Динамик ВЧ SCANSPEAK D2908/714000. Инструкция на английском языке

TWEETER                                                   D2908/714000
D2908/714000 is a highly efficient and high-power 8 ohm 1" beryllium dome tweeter,
it reproduces music clean and clear at all listening levels with dynamic precision and a
superb vocal rendition as when recorded. The smooth machined alu faceplate and the
acoustical very transparent wire-mesh protection grille not only represent a beautiful
appearance is also allows the sound to be dispersed free and undistorted to the
listener.
KEY FEATURES:
· Beryllium Diaphragm (99% Pure Be)       · Rear Mount Magnet System
· Patented Symmetrical Drive (SD-2) motor  · Titanium Voice Coil Former
· Black Anodized O120mm Machined Alu Faceplate  · Non Resonant Aluminium Rear Chamber
T-S Parameters                                  Electrical Data
Resonance frequency [fs]       534 Hz           Nominal impedance [Zn]           8 ?
Mechanical Q factor [Qms]         7.3           Minimum impedance [Zmin]        6.5 ?
Electrical Q factor [Qes]        0.50           Maximum impedance [Zo]          90 ?
Total Q factor [Qts]             0.47           DC resistance [Re]              5.7 ?
Force factor [Bl]              3.6 Tm           Voice coil inductance [Le]    0.02 mH
Mechanical resistance [Rms]  0.15 kg/s
Power Handling
Moving mass [Mms]               0.33 g
100h RMS noise test (IEC 17.1)*  130 W
Compliance [Cms]            0.26 mm/N
Long-term max power (IEC 17.3)*  200 W
Effective diaph. diameter [D]  30 mm           *Filter: 2. order HP Butterworth, 2.5 kHz
Effective piston area [Sd]      7 cm?
Voice Coil & Magnet Data
Equivalent volume [Vas]         0.02 l
Voice coil diameter             26 mm
Sensitivity (2.83V/1m)          92 dB
Voice coil height              2.1 mm
Ratio Bl/vRe                 1.5 N/vW
Voice coil layers                   2
Ratio fs/Qts                  1136 Hz          Height of gap                  2.5 mm
Linear excursion              ± 0.2 mm
Notes:
IEC specs. refer to IEC 60268-5 third edition.   Max mech. excursion         ± 1.6 mm
All Scan-Speak products are RoHS compliant.    Unit weight                     0.5 kg
Data are subject to change without notice.
Datasheet updated: 03.10.2012
N.C. Madsensvej 1 · 6920 Videb?k · Denmark · Phone: +45 6040 5200 · www.scan-speak.dk

TWEETER                                                   D2908/714000
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