 |
 |
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
|
|
|
Downloads
SPL and impedance response curves as text files
|
|
|
|
FR040WA01 on-axis SPL response
|
|
FR040WA01 impedance response
|
|
|
FR040WA02 on-axis SPL response
|
|
FR040WA02 impedance response
|
|
|
|
|
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.
|
|
|
|
|
|
FEATURES
|
|
|
|
- True full-range design with on-axis output to beyond 20kHz
- Dual neodymium magnet structure for high efficiency and almost ideal magnetically shielding
- 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
- Black anodized alu cone for better heat transfer
- Optimized off-axis response
- Vented polymer chassis for lower air flow speed reducing audible distortion
- Vented voice coil former for reduced distortion and compression
- Heavy-duty black fiber glass voice coil bobbin to reduce mechanical losses resulting in better dynamic performance and low-level details
- Large motor with 16 mm voice coil diameter for better control and power handling
- 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
|
|
|
|
NOMINAL SPECIFICATIONS
|
|
|
|
|
Notes
|
Parameter
|
FR040WA01
|
FR040WA02
|
Unit
|
|
Before burn-in
|
After burn-in
|
Before burn-in
|
After burn-in
|
|
|
Nominal size
|
1.5
|
1.5
|
[inch.]
|
|
|
Nominal impedance
|
4
|
8
|
[ohm]
|
|
|
Recommended max. upper frequency limit
|
full range
|
full range
|
[kHz]
|
|
1, 4
|
Sensitivity, 2.83V/1m (average SPL in range 200 - 10,000 Hz)
|
84
|
81
|
[dB]
|
|
2, 4
|
Power handling, short term, IEC 268-5, no additional filtering
|
35
|
35
|
[W]
|
|
2, 4
|
Power handling, long term, IEC 268-5, no additional filtering
|
15
|
15
|
[W]
|
|
2
|
Power handling, continuous, IEC 268-5, no additional filtering
|
3
|
3
|
[W]
|
|
|
Effective radiating area, Sd
|
7.8
|
7.8
|
[sq.cm]
|
|
3, 4, 6
|
Resonance frequency (free air, no baffle), Fs
|
233
|
|
239
|
|
[Hz]
|
|
|
Moving mass, incl. air (free air, no baffle), Mms
|
0.63
|
0.60
|
[g]
|
|
3, 4
|
Force factor, Bxl
|
1.67
|
2.0
|
[N/A]
|
|
3, 4, 6
|
Suspension compliance, Cms
|
0.74
|
|
0.74
|
|
[mm/N]
|
|
3, 4, 6
|
Equivalent air volume, Vas
|
0.064
|
|
0.064
|
|
[lit.]
|
|
3, 4, 6
|
Mechanical resistance, Rms
|
0.096
|
|
0.096
|
|
[Ns/m]
|
|
3, 4, 6
|
Mechanical Q, Qms
|
9.6
|
|
9.4
|
|
[-]
|
|
3, 4, 6
|
Electrical Q, Qes
|
0.99
|
|
1.42
|
|
[-]
|
|
3, 4, 6
|
Total Q, Qts
|
0.90
|
|
1.23
|
|
[-]
|
|
4
|
Voice coil resistance, RDC
|
3.0
|
6.3
|
[ohm]
|
|
5
|
Voice coil inductance, Le (measured at 10 kHz)
|
0.053
|
0.081
|
[mH]
|
|
|
Voice coil inside diameter
|
16
|
16
|
[mm]
|
|
|
Voice coil winding height
|
3
|
3
|
[mm]
|
|
|
Air gap height
|
2
|
2
|
[mm]
|
|
|
Theoretical linear motor stroke, Xmax
|
+/-0.5
|
+/-0.5
|
[mm]
|
|
|
Magnet weight
|
|
|
[g]
|
|
|
Total unit net weight excl. packaging
|
0.037
|
0.037
|
[kg]
|
|
3, 4, 5
|
Krm
|
0.016
|
0.018
|
[mohm]
|
|
3, 4, 5
|
Erm
|
0.98
|
1.01
|
[-]
|
|
3, 4, 5
|
Kxm
|
0.66
|
1.15
|
[mH]
|
|
3, 4, 5
|
Exm
|
0.73
|
0.71
|
[-]
|
|
|
|
|
|
Note 1
|
Measured in infinite baffle.
|
|
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 25 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 2.83/4.0 VRMS (4/8 ohm version). The unit is not burned in before shipping.
|
|
|
|
|
FREQUENCY RESPONSE
|
|
|
|
HARMONIC DISTORTION
|
|
|
|
OUTLINE DRAWING AND NOMINAL DIMENSIONS (mm)
|
|
|
|
|
|
|
Part no. FR040WA01-01
|
4 ohm version, packed in pairs
|
|
Part no. FR040WA01-02
|
4 ohm version, packed in bulk (industrial) packaging
|
|
Part no. FR040WA02-01
|
8 ohm version, packed in pairs
|
|
Part no. FR040WA02-02
|
8 ohm version, packed in bulk (industrial) packaging
|
|
|
|
|
Latest update: April 13, 2018
|
|
|
|
|
|
|
|
Specifications are subject to change without any further notice.
Copyright © 2006-2022 by Wavecor Ltd., China. All rights reserved.
|
|
|
|
|
|
MORE INFO
|
|
|
|
|
|
