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SW259WA01/02     10 die cast, alu cone subwoofers, 4/8 ohm

 

 

 

 

SW259WA01 and SW259WA02 are woofers designed for dedicated sub bass applications. They work equally well for high-end hi-fi, high quality home theater systems, and top multimedia setups.
The extremely stiff aluminium cone, the long linear throw, exaggerated ventilation, and the special dynamic linearization short circuiting rings, together make up for an unusually linear and low-distortion woofer. Even at very high signal levels, the unit behaves controlled and without distortion.
Due to low mechanical losses SW259WA01 and SW259WA02 master equally well low level details and extreme dynamic peaks.

             REPLACEMENTS
SW259WA01 and SW259WA02 have replaced the previous models SW263WA01 and SW263WA03.
For more info please follow this link

Frequency resp.
Specifications
Dimensions
Ordering info

Downloads
SPL and impedance response curves as text files

SW259WA01_SPL_response

SW259WA01 SPL response

SW259WA01_impedance_response

SW259WA01 impedance response

SW259WA02_SPL_response

SW259WA02 SPL response

SW259WA02_impedance_response

SW259WA02 mpedance 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

  • New optimized outer suspension (surround) for improved large-signal handling
  • Extremely rigid aluminium cone to ensure piston motion at high levels and for better heat transfer at high continuous power levels
  • New reinforced die cast alu chassis with optimal ventilation and increased stroke
  • Venting through holes in cone neck for reduced distortion and compression
  • Vented chassis for lower air flow speed reducing audible distortion
  • Two internally built-in alu rings for stabilizing the magnetic field leading to lower high-level distortion
  • Heavy-duty black fiber glass voice coil bobbin to reduce mechanical losses resulting in better dynamic performance and low-level details
  • Large motor structure with 2” voice coil diameter and 145 mm magnet for better control and efficiency
  • Black-anodized magnet structure steel parts for increased heat dissipation and power handling
  • Long linear stroke motor for reduced distortion at high levels
  • Linear suspension with specially designed CONEX damper (spider) for long durability under extreme operating conditions
  • 4-layer voice coil for increased control and better small-cabinet performance

FREQUENCY RESPONSE

SW259WA01-SPL

Measuring conditions, SPL
Driver mounting: Flush in infinite
     baffle, back side open (no cabinet)
Microphone distance: 1.0 m
Input signal: 2.83 VRMS stepped sine wave
Smoothing: 1/6 oct.

Measuring conditions, impedance
Driver mounting: Free air, no baffle,
     back side open (no cabinet)
Input signal: Stepped sine wave, semi-
     current-drive, nominal current 2 mA
Smoothing: None

SW259WA01-IMP
SW259WA02-SPL

Measuring conditions, SPL
Driver mounting: Flush in infinite
     baffle, back side open (no cabinet)
Microphone distance: 1.0 m
Input signal: 2.83 VRMS stepped sine wave
Smoothing: 1/6 oct.

Measuring conditions, impedance
Driver mounting: Free air, no baffle,
     back side open (no cabinet)
Input signal: Stepped sine wave, semi-
     current-drive, nominal current 2 mA
Smoothing: None

SW259WA02-IMP

NOMINAL SPECIFICATIONS

Notes

  Parameter

SW259WA01

SW259WA02

Unit

Before burn-in

After burn-in

Before burn-in

After burn-in

 

Nominal size

10

10

[inch.]

 

Nominal impedance

4

8

[ohm]

 

Recommended max. upper frequency limit

400

400

[Hz]

1, 3

Sensitivity, 2.83V/1m (calculated from T/S parameters)

83.5

81.5

[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

200

200

[W]

 

Effective radiating area, Sd

312

312

[sq.cm]

3, 6

Resonance frequency (free air, no baffle), Fs

29

 

24

 

[Hz]

 

Moving mass, incl. air (free air, no baffle), Mms

173

158

[g]

3

Force factor, Bxl

14.5

18.6

[N/A]

3, 6

Suspension compliance, Cms

0.18

 

0.29

 

[mm/N]

3, 6

Equivalent air volume, Vas

25

 

40

 

[lit.]

3, 6

Mechanical resistance, Rms

3.1

 

1.64

 

[Ns/m]

3, 6

Mechanical Q, Qms

10.0

 

14.2

 

[-]

3, 6

Electrical Q, Qes

0.49

 

0.44

 

[-]

3, 6

Total Q, Qts

0.46

 

0.43

 

[-]

4

Voice coil resistance, RDC

3.3

6.5

[ohm]

5

Voice coil inductance, Le (measured at 1 kHz)

1.5

2.3

[mH]

 

Voice coil inside diameter

51

51

[mm]

 

Voice coil winding height

31

31

[mm]

 

Air gap height

8

8

[mm]

 

Theoretical linear motor stroke, Xmax

11.5

11.5

[mm]

 

Magnet weight

2.7

2.7

[g]

 

Total unit net weight excl. packaging

6.6

6.6

[kg]

3, 5

Krm

40

75

[mohm]

3, 5

Erm

0.53

0.50

[-]

3, 5

Kxm

7.6

9.7

[mohm]

3, 5

Exm

0.80

0.81

[-]

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 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 exciting the transducer by a 20 Hz sine wave for 2 hours at level 10/14.1 VRMS (4/8 ohm version). The unit is not burned in before shipping.
 

OUTLINE DRAWING AND NOMINAL DIMENSIONS

Dimensions in mm

SW259WA01/02 outline drawing PDF
SW259WA01/02-outline-DWG

TERMINAL NOMINAL DIMENSIONS (mm)

SW259WA01/02_terminals

PACKAGING AND ORDERING INFORMATION

Part no. SW259WA01-01

4 ohm version, individual packaging (one piece per box)

Part no. SW259WA02-01

8 ohm version, individual packaging (one piece per box)

Latest update: July 4, 2017

 

Specifications are subject to change without any further notice.
Copyright © 2006-2018 by Wavecor Ltd., Guangzhou, China. All rights reserved.

 

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MORE INFO

PDF data sheet
(923 KB)

 

Related Passive Radiator PR259WA01

 

All Wavecor subwoofersAll Wavecor subwoofers
(overview)

 

SW259WA01 enclosure simulationsSW259WA01
(4 ohm) enclosure simulations

 

SW259WA02 enclosure simulationsSW259WA02
(8 ohm) enclosure simulations

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