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Wavecor WF182BD10 Glass Fiber 17 cm bass 8 ohm
The 7” transducers WF182BD09 and WF182BD11 (both 4 ohm) and WF182BD10 and WF182BD12(both 8 ohm) were designed as high performance bass and midrange units for monitors and high-end hi-fi speakers. They offer outstanding deep bass performance and dynamic and detailed midrange.
-
- Balanced Drive motor structure for optimal drive force symmetry resulting in largely reduced even order harmonic distortion
- Copper cap on center pole to reduce voice coil inductance and to minimize variations in voice coil inductance as a function of voice coil position
- Cone made of a new paper/glass fiber mix with improved consistency and stability
- Rigid die cast alu chassis with extensive venting for lower air flow speed reducing audible distortion
- Vented voice coil former for reduced distortion and compression
- Vented center pole with dual flares for reduced noise level at large cone excursions
- Heavy-duty black fiber glass voice coil former to reduce mechanical losses resulting in better dynamic performance and low-level details
- Large motor with 1½” voice coil diameter 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 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
Notes
ìParameter
WF182BD09 and WF182BD11
WF182BD10 and WF182BD12
Unit
Before burn-in
After burn-in
Before burn-in
After burn-in
Nominal size
7
7
[inch.]
Nominal impedance
4
8
[ohm]
Recommended max. upper frequency limit
2.5
2.5
[kHz]
1, 4
Sensitivity, 2.83V/1m (average SPL in range 200 - 1,000 Hz)
88.5
86
[dB]
2, 4
Power handling, short term, IEC 268-5, no additional filtering
[W]
2, 4
Power handling, long term, IEC 268-5, no additional filtering
[W]
2
Power handling, continuous, IEC 268-5, no additional filtering
80
80
[W]
Effective radiating area, Sd
131
131
[sq.cm]
3, 4, 6
Resonance frequency (free air, no baffle), Fs
33
28.5
34
29.5
[Hz]
Moving mass, incl. air (free air, no baffle), Mms
23.4
21.9
[g]
3, 4
Force factor, Bxl
6.5
8.2
[N/A]
3, 4, 6
Suspension compliance, Cms
1.0
1.33
1.0
1.33
[mm/N]
3, 4, 6
Equivalent air volume, Vas
24.3
32.4
24.3
32.4
[lit.]
3, 4, 6
Mechanical resistance, Rms
0.44
0.46
0.44
0.46
[Ns/m]
3, 4, 6
Mechanical Q, Qms
10.9
9.1
10.5
8.8
[-]
3, 4, 6
Electrical Q, Qes
0.37
0.32
0.44
0.38
[-]
3, 4, 6
Total Q, Qts
0.35
0.31
0.42
0.37
[-]
4
Voice coil resistance, RDC
3.2
6.4
[ohm]
5
Voice coil inductance, Le (measured at 10 kHz)
0.10
0.17
[mH]
Voice coil inside diameter
39
39
[mm]
Voice coil winding height
16
16
[mm]
Air gap height
5
5
[mm]
Theoretical linear motor stroke, Xmax
±5.5
±5.5
[mm]
Magnet weight
725
725
[g]
Total unit net weight excl. packaging
1.95
1.95
[kg]
3, 4, 5
Krm
131
117
[mohm]
3, 4, 5
Erm
0.30
0.34
[-]
3, 4, 5
Kxm
17.5
37
[mH]
3, 4, 5
Exm
0.47
0.43
[-]
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