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Thumbnail Filmstrip of 6.5in. - 4 Ohm - Ferrite - WF166TU02 Images
Wavecor Speaker Driver - WF166TU2 - 4 Ohm 6" Die Cast Car Woofer
Description
WF166TU02 is a mid/woofer designed for demanding bass and midrange applications. It works equally well for most applications but is designed especially for automotive high-end sound.
The very rigid die cast alu chassis follows the common standard dimensions for easy installation in cars WF166TU02 is powered by a large 90 mm magnet structure that ensures good efficiency and optimized T/S parameters.
The large 32 mm voice coil ensures high power handling - thermally and mechanically The optimized paper cone ensures wide bandwidth and low distortion. Distortion is further reduced by efficient venting and a separate alu field-stabilizing ring. WF166TU02 is a good choice for 2-way car speaker systems.
Features
- Very rigid die cast alu chassis
- Built-in alu field stabilizing ring for reduced high-level distortion
- Vented voice coil former for reduced distortion and compression
- 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 large 90 mm magnet for better control and efficiency
- Linear suspension with specially designed
- CONEX damper (spider) for long durability under extreme operating conditions
- Gold plated terminals to prevent oxidation for long-term reliable connection - important in a car environment
Frequency SPL and Impedance Response Graphs
Loudspeaker Frequency Response Graph
Measuring conditions, SPL
Driver mounting: Flush in infinite baffle
Microphone distance: 1.0 m
Input level: 2.83 VRMS
Smoothing: 1/6 oct.
Loudspeaker Impedance Response Graph
Measuring conditions, impedance
Driver mounting: Free air, no baffle
Input signal: Stepped sine wave, semi-current-drive, nominal current 2 mA
Smoothing: None
Technical Specifications
| Notes | Parameter | Value | Unit | |
Befrore |
After Burn-in |
|||
| Nominal size | 6½ | inch | ||
| Nominal impedance | 4 | Ohm | ||
| Recommended max. upper frequency limit |
3.5 | kHz | ||
| 1, 5 | Sensitivity, 2.83V/1m (average SPL in range 200 - 2,000 kHz) | 91 | dB | |
| 2 | Power handling, short term, IEC 268-5, no additional filtering | W | ||
| 2 | Power handling, long term, IEC 268-5, no additional filtering | W | ||
| 2 | Power handling, continuous, IEC 268-5, no additional filtering. | 60 | W | |
| Effective radiating area, Sd | 139 | cm2 | ||
| 3, 5, 7 | Resonance frequency (free air, no baffle), Fs | 50 | Hz | |
| Moving mass, incl. air (free air, no baffle), Mms | 12.5 | g | ||
| 3 | Force factor, Bxl | 5.0 | - | |
| 3,5,7 | Suspension compliance, Cms | 0.81 | mm/N | |
| 3,5,7 | Equivalent air volume, Vas | 22.3 | lit. | |
| 3,5,7 | Mechanical resistance, Rms | 0.40 | ||
| 3,5,7 | Mechanical Q, Qms | 9.8 | - | |
| 3,5,7 | Electrical Q, Qes | 0.50 | - | |
| 3,5,7 | Total Q, Qts | 0.48 | - | |
| 4 | Voice coil resistance, RDC | 3.2 | Ohm | |
| 6 | Voice coil inductance, Le (measured at 10 kHz) | 0.23 | mH | |
| Voice coil inside diameter | 32 | mm | ||
| Voice coil winding height | 11 | mm | ||
| Air gap height | 5 | mm | ||
| Magnet weight | 400 | g | ||
| Total unit net weight excl. packaging | 1.15 | kg | ||
| 3, 6 | Krm | 109 | mOhm | |
| 3, 6 | Erm | 0.97 | - | |
| 3, 6 | Kxm | 2.04 | mH | |
| 3, 6 | Exm | 0.79 | - | |
Note 2 Tested in free air (no cabinet).
Note 3 Measured using a semi-constant current source, nominal level 2 mA.
Note 4 Measured at 20 deg. C
Note 5 Measured at 25 deg. C
Note 6 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.
Note 7 After burn-in specifications are measured at least 12 hours after exiting the transducer by a 20 Hz sine wave for 2 hours at level 10 VRMS. Unit are not burned in before shipping.
Driver Nominal Dimensions
Loudspeaker Driver Dimensions and Measurements - all dimensions in mm (approx.)
Terminal Nominal Dimensions
Loudspeaker Driver Terminal Dimensions and Measurements - all dimensions in mm (approx.)
Thickness, both terminals: 0.5 mm
Terminal plating: Gold
