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WF146WA05/06 are mid/woofers designed for demanding bass and midrange applications. They work equally well for high-end hi-fi, high quality home theater systems, and top multimedia setups, etc.
Powered by a large 90 mm magnet structure that ensures good efficiency and optimal T/S parameters.
The large 32 mm voice coil ensures high power handling - thermally and mechanically
The new optimized woven glass fibre cone ensures large bandwidth and low distortion. Distortion is further reduced by efficient venting and by adding an internal alu shorting ring to stabilize the magnetic field in the air gap.
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Downloads
SPL and impedance response curves as text files
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WF146WA05 SPL response
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WF146WA05 impedance response
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WF146WA06 SPL response
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WF146WA06 impedance response
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Important!
Please observe that these text files for download are actual measurements of the drivers measured in infinite baffle and without any enclosure. Measuring the drivers in a finite baffle (like the baffle of most speaker cabinets) and in any size of enclosure will lead to different response curves.
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FEATURES
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 New optimized glass fibre cone design- Rigid steel chassis with extensive venting for lower air flow speed reducing audible distortion
- Vented center pole with dual flares for reduced noise level at large cone excursions
- Venter voice coil former
- Heavy-duty fiber glass voice coil former to reduce mechanical losses resulting in better dynamic performance and low-level details
- Large motor structure for better control and power handling
- Built-in alu field-stabilizing ring for reduced distortion at
high levels
- Low-loss suspension (high Qm) for better reproduction of details and dynamics
- Black plated motor parts for better heat transfer to the surrounding air
- Conex spider for better durability under extreme conditions
- Gold plated terminals to ensure long-term trouble free connection
- Delivered with foam gasket attached for hassle-free mounting and secure cabinet sealing
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SPECIFICATIONS
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Notes
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Parameter
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WF146WA05
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WF146WA06
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Unit
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Before burn-in
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After burn-in
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Before burn-in
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After burn-in
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Nominal size
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5.75
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5.75
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[inch.]
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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 max. upper frequency limit
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3.5
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3.5
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[kHz]
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1, 3
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Sensitivity, 2.83V/1m, (average 400-3,500 Hz)
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88.5
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86
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[dB]
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2
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Power handling, short term, IEC 268-5, no additional filtering
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250
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250
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[W]
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2
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Power handling, long term, IEC 268-5, no additional filtering
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140
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140
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[W]
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2
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Power handling, continuous, IEC 268-5, no additional filtering
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65
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65
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[W]
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Effective radiating area, Sd
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93
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93
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[sq.cm]
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3, 6
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Resonance frequency (free air, no baffle), Fs
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41
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40
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42
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41
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[Hz]
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Moving mass, incl. air (free air, no baffle), Mms
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12
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11.4
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[g]
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3
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Force factor, Bxl
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5.0
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6.3
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[N/A]
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3, 6
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Suspension compliance, Cms
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1.24
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1.35
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1.24
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1.35
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[mm/N]
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3, 6
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Equivalent air volume, Vas
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15.2
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16.6
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15.2
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16.6
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[lit.]
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3, 6
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Mechanical resistance, Rms
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0.42
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0.42
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0.42
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0.42
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[Ns/m]
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3, 6
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Mechanical Q, Qms
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7.4
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7.1
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7.2
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6.9
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[-]
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3, 6
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Electrical Q, Qes
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0.40
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0.38
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0.50
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0.48
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[-]
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3, 6
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Total Q, Qts
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0.38
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0.36
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0.47
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0.45
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[-]
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4
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Voice coil resistance, RDC
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3.2
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6.5
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[ohm]
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5
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Voice coil inductance, Le (measured at 10 kHz)
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[mH]
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Voice coil inside diameter
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32
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32
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[mm]
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Voice coil winding height
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11
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11
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[mm]
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Air gap height
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5
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5
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[mm]
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Theoretical linear motor stroke, Xmax
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+/-3
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+/-3
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[mm]
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Magnet weight
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400
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400
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[g]
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Total unit net weight excl. packaging
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1.03
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1.03
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[kg]
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3, 5
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Krm
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[mohm]
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3, 5
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Erm
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[-]
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3, 5
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Kxm
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[mH]
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3, 5
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Exm
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[-]
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Note 1
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Measured in infinite baffle.
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Note 2
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Tested in free air (no cabinet).
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Note 3
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Measured using a semi-constant current source, nominal level 2 mA.
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Note 4
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Measured at 20 deg. C
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Note 5
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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 advanced model often referred to as the “Wright empirical model”, also used in LEAP-4 as the TSL model (www.linearx.com), involving parameters Krm, Erm, Kxm, and Exm. This more accurate transducer model is described in a technical paper (PDF) here.
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Note 6
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After burn-in specifications are measured 12 hours after exiting the transducer by a 20 Hz sine wave for 2 hours at level 7/8 VRMS (4/8 ohm version). The unit is not burned in before shipping.
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FREQUENCY RESPONSE
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HARMONIC DISTORTION
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OUTLINE DRAWING AND NOMINAL DIMENSIONS
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TERMINAL NOMINAL DIMENSIONS (mm)
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PACKAGING AND ORDERING INFORMATION
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Part no. WF146WA05-01
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4 ohm version, individual packaging (one piece per box)
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Part no. WF146WA05-02
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4 ohm version, bulk packaging
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Part no. WF146WA06-01
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8 ohm version, individual packaging (one piece per box)
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Part no. WF146WA06-02
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8 ohm version, bulk packaging
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Latest update: March 26, 2024
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Specifications are subject to change without any further notice.
Copyright © by Wavecor Ltd., China. All rights reserved.
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