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Thumbnail Filmstrip of Wavecor WF146WA02 - 8 Ohm 6in. Die Cast Mid-Woofer Images
Wavecor Speaker Driver - WF146WA02 - 8 Ohm 6" Die Cast Mid-Woofer
Description
WF132TU02 is a mid/woofer designed for demanding bass and midrange applications. It works equally well for most applications but was designed especially for automotive high-end sound systems.
The very rigid die cast alu chassis follows the common standard dimensions for easy installation in cars. WF132TU02 is powered by a large 90mm magnet structure that ensures good efficiency and optimized T/S parameters. The large 32mm voice coil and the size of the magnet ensure high power handling - thermally and mechanically.
The optimized paper cone ensures wide bandwidth and low distortion. Distortion is further reduced by efficient venting of chassis and voice coil. WF132TU02 is an obvious choice for 2-way car speaker systems.
Features
- Very rigid die cast alu chassis to withstand challenging car applications
- 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, power handling, 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 | 5¾ | inch | ||
| Nominal impedance | 4 | Ohm | ||
| Recommended max. upper frequency limit |
3.5 | kHz | ||
| 1, 3 | Sensitivity, 2.83V/1m (average SPL in range 200 - 1,000 kHz) | 87.5 | 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. | 55 | W | |
| Effective radiating area, Sd | 95 | cm2 | ||
| 3, 6 | Resonance frequency (free air, no baffle), Fs | 58 | Hz | |
| Moving mass, incl. air (free air, no baffle), Mms | 9.7 | g | ||
| 3 | Force factor, Bxl | 6.4 | - | |
| 3, 6 | Suspension compliance, Cms | 0.78 | mm/N | |
| 3, 6 | Equivalent air volume, Vas | 10.0 | lit. | |
| 3, 6 | Mechanical Q, Qms | 7.0 | - | |
| 3, 6 | Electrical Q, Qes | 0.54 | - | |
| 3, 6 | Total Q, Qts | 0.51 | - | |
| 4 | Voice coil resistance, RDC | 6.3 | Ohm | |
| 5 | Voice coil inductance, Le (measured at 10 kHz) | 0.39 | 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 | 1.03 | kg | ||
| 3, 5 | Krm | 0.14 | mOhm | |
| 3, 5 | Erm | 1.03 | - | |
| 3, 5 | Kxm | 8.2 | mH | |
| 3, 5 | Exm | 0.69 | - | |
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 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 6 After burn-in specifications are measured 12 hours after exiting the transducer by a 20 Hz sine wave for 2 hours at level 10 VRMS. The unit is 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