Transcript
SPECIFICATIONS WF146WA01/02 5¾” paper cone mid/woofer, 4/8 ohm Nominal impedance is 4 ohm for WF146WA01 and 8 ohm for WF146WA02. Otherwise the two models are identical. WF146WA01/02 are mid/woofers designed for demanding bass and midrange applications. They work equally well for high-end hifi, high quality home theater systems, and top multimedia setups.
FEATURES • • • • • • • •
Alu field-stabilizing ring inside magnet assembly for reduced high-level distortion Vented voice coil former for reduced distortion and compression New vented chassis for lower air flow speed reducing audible distortion Heavy-duty black fiber glass voice coil bobbin to increase power handling and reduce mechanical losses resulting in better dynamic performance and low-level details Large motor system with 1¼” voice coil diameter and 90 mm magnet for better control, power handling, and efficiency Black magnet parts for better heat transfer to increase power handling Linear suspension with specially designed Conex damper (spider) for long durability under extreme operating conditions Gold plated terminals to ensure long-term trouble free connection
NOMINAL SPECIFICATIONS WF146WA01 Notes
1 2 2 2 3, 6 3 3, 6 3, 6 3, 6 3, 6 3, 6 4 5
3, 5 3, 5 3, 5 3, 5 Note 1 Note 2 Note 3 Note 4 Note 5
Note 6
Parameter
Before burn-in
Nominal size Nominal impedance Recommended max. upper frequency limit Sensitivity, 2.83V/1m (average SPL in range 200 - 1,000 Hz) Power handling, short term, IEC 268-5, no additional filtering Power handling, long term, IEC 268-5, no additional filtering Power handling, continuous, IEC 268-5, no additional filtering Effective radiating area, Sd Resonance frequency (free air, no baffle), Fs Moving mass, incl. air (free air, no baffle), Mms Force factor, Bxl Suspension compliance, Cms Equivalent air volume, Vas Mechanical Q, Qms Electrical Q, Qes Total Q, Qts Voice coil resistance, RDC Voice coil inductance, Le (measured at 10 kHz) Voice coil inside diameter Voice coil winding height Air gap height Magnet weight Total unit net weight excl. packaging Krm Erm Kxm Exm
After burn-in
WF146WA02 Before burn-in
After burn-in
5¾ 4 3.5 90
5¾ 8 3.5 87.5
55 95
55 95
56
58 10..4 5.1
0.78 10.0 7.0 0.45 0.42
9.7 6.4 0.78 10.0 7.0 0.54 0.51
3.2 0.24 32 11 5 400 1.03 0.19 0.96 4.9 0.69
6.3 0.39 32 11 5 400 1.03 0.14 1.03 8.2 0.69
Unit [inch.] [ohm] [kHz] [dB] [W] [W] [W] [cm²] [Hz] [g] [N/A] [mm/N] [lit.] [-] [-] [-] [ohm] [mH] [mm] [mm] [mm] [g] [kg] [mohm] [-] [mH] [-]
Measured in infinite baffle. Tested in free air (no cabinet). Measured using a semi-constant current source, nominal level 2 mA. Measured at 20 deg. C It is generally a rough simplification to assume that loudspeaker transducer voice coils exhibit the characteristics of an inductor. Instead it is a far more accurate approach to use the more detailed model called LEAP-4 or TSL (www.linearx.com) involving parameters Krm, Erm, Kxm, and Exm. This more accurate transducer model is described in a technical paper at www.wavecor.com. After burn-in specifications are measured 12 hours after exiting the transducer by a 20 Hz sine wave for 2 hours at level 8.95/12.65 VRMS (4/8 ohm version). The unit is not burned in before shipping.
Specifications are subject to change without any further notice. Copyright © 2009 by Wavecor Ltd., Guangzhou, China. All rights reserved. Wavecor® is a registered trademark of Wavecor Ltd. For more information please visit www.Wavecor.com
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SPECIFICATIONS WF146WA01/02 5¾” paper cone mid/woofer, 4/8 ohm dBSPL
Ohm
SPL & impedance response, WF146WA01/02
110
500
WF146WA01 (4 ohm) SPL WF146WA02 (8 ohm) SPL WF146WA01 (4 ohm) impedance WF146WA02 (8 ohm) impedance
105 100
200 100
95
50
90 85
20
80
10
75
5
Measuring conditions, SPL Driver mounting: Flush in infinite baffle, back side open (no cabinet) Microphone distance: 1.0 m Input level: 2.83 VRMS Smoothing: 1/6 oct.
Measuring conditions, impedance Driver mounting: Free air, no baffle, back side open (no cabinet) Input signal: Semi-current-drive, nominal current 2 mA Smoothing: None
70 2
65 60
20
50
100
200
500
1k
2k
5k
10k
20k
1
Frequency, Hz
4x
3.2
2.2
DETAIL A
4.5
R
1
OUTLINE DRAWING (nominal dimensions, mm)
max. 65
A
90 max.
118
137 146
EVA gasket attached to rear side of chassis Red mark for positive terminal
7.1
6.5
CONNECTIONS
4.8
2.8 Thickness, both terminals: 0.5 mm Terminal plating: Gold
PACKAGING AND ORDERING INFORMATION Part no. WF146WA01-01
4 ohm version, individual packaging (one piece per box)
Part no. WF146WA01-02
4 ohm version, bulk packaging
Part no. WF146WA02-01
8 ohm version, individual packaging (one piece per box)
Part no. WF146WA02-02
8 ohm version, bulk packaging
Specifications are subject to change without any further notice. Copyright © 2009 by Wavecor Ltd., Guangzhou, China. All rights reserved. Wavecor® is a registered trademark of Wavecor Ltd. For more information please visit www.Wavecor.com
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