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- Precision-coated textile diaphragm for improved consistency and high-frequency extension
- Extreme internal venting through pole, voice coil former, and top plate to 3 internal chambers
- Copper-clad aluminium voice coil wire offering lower moving mass for improved efficiency and transient response
- Reflection-free rear chamber design with solid reinforcement ribs
- Large ferrite magnet for improved efficiency and transient response
- With or without high-stability light ferro fluid
- Flexible lead wires for higher power handling and larger excursion
- Black anodized magnet structure for increased power handling and reduced power compression
- Gold plated terminals to prevent oxidation for long-term reliable connection
- Delivered with EVA gasket attached for hassle-free mounting and secure cabinet sealing
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SPL FREQUENCY RESPONSE
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2.83V/1.0m, infinite baffle
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2.83V/1.0m, infinite baffle
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IMPEDANCE RESPONSE
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NOMINAL SPECIFICATIONS (preliminary)
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Parameter
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Nominal size
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30
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[mm]
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Nominal impedance
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4
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8
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[ohm]
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Recommended freq. range
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1.5-30
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[kHz]
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Sensitivity, 2.83V/1m, (average 1-20kHz)
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91½
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91
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89
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88½
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[dB]
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Voice coil diameter
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30.4
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[mm]
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Voice coil height
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1.7
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[mm]
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Air gap height
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2.5
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[mm]
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Voice coil resistance, RDC
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3.2
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6.3
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[ohm]
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Voice coil inductance
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0.020
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0.028
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[mH]
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Magnet weight
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260
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[g]
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Effective radiating area, Sd
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11.0
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[sq.cm]
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Power handling, continuous, IEC 268-5, 2.0kHz@12dB/oct.
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50
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60
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50
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60
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[W]
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Resonance freq., Fs
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450
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450
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450
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450
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[Hz]
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Moving mass, incl. air (free air, no baffle)
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0.49
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0.49
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0.49
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0.49
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[g]
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Force factor, Bxl
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2.1
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2.1
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2.5
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2.5
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[Tm]
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Mechanical Q, Qm
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1.8
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1.4
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2.1
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1.5
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-
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Electrical Q, Qe
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1.0
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1.0
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1.4
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1.4
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-
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Total Q, Qt
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0.65
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0.59
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0.84
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0.72
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-
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Suspension compliance, Cms
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0.26
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0.26
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0.26
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0.26
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[mm/N]
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Equiv. air volume, Vas
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0.044
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0.044
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0.044
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0.044
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[lit.]
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Total unit net weight
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0.59
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[kg]
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Krm (note 1)
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100
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152
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67
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64
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[μohm]
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Erm (note 1)
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0.85
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0.82
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0.91
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0.92
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-
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Kxm (note 1)
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3.3
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2.8
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5.1
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4.3
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[mH]
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Exm (note 1)
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0.56
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0.56
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0.56
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0.56
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-
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Note 1: Constants according to the LEAP-4 (.TSL) model, www.linearx.com
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OUTLINE DRAWING AND NOMINAL DIMENSIONS (mm)
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Part no. TW030WA05-01
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4 ohm, no ferro fluid
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Individual packaging (one piece per box)
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Part no. TW030WA05-02
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4 ohm, no ferro fluid
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Bulk packaging
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Part no. TW030WA06-01
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4 ohm, with ferro fluid
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Individual packaging (one piece per box)
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Part no. TW030WA06-02
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4 ohm, with ferro fluid
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Bulk packaging
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Part no. TW030WA07-01
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8 ohm, no ferro fluid
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Individual packaging (one piece per box)
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Part no. TW030WA07-02
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8 ohm, no ferro fluid
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Bulk packaging
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Part no. TW030WA08-01
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8 ohm, with ferro fluid
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Individual packaging (one piece per box)
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Part no. TW030WA08-02
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8 ohm, with ferro fluid
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Bulk packaging
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Specifications are subject to change without any further notice. Copyright © 2006-2008 by Wavecor Ltd., Guangzhou, China. All rights reserved.
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MORE INFO
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