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SW263WA01/03     10 die cast, alu cone suwoofers, 8/4 ohm

 

 

 

 

SW263WA01 and SW263WA03 are woofers designed for dedicated subwoofer applications. They work equally well for high-end hi-fi, high quality home theater systems, and top multimedia setups.
The extremely rigid aluminium cone, the long linear throw, exaggerated ventilation, and the special dynamic linearization short circuiting rings together makes 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 SW263WA01 masters equally well low level details and extreme dynamic requirements.

Frequency resp.
Specifications
Dimensions
Ordering info

FEATURES

Wavecor subwoofer SW263WA01
  • Extremely rigid aluminium cone to ensure piston motion at high levels and for better heat transfer at high continuous power levels
  • Die cast alu chassis with additional spacers for optimal ventilation and increased stroke
  • Vented cone neck for reduced distortion and compression
  • Vented chassis for lower air flow speed reducing audible distortion
  • Heavy-duty black fiber glass voice coil bobbin to reduce mechanical losses resulting in better dynamic performance and low-level details
  • Large motor system with 2” voice coil diameter and huge dual 145mm magnet for better control and efficiency
  • Black-plated magnet structure steel parts for increased heat dissipation and power handling
  • Upper and lower  built-in alu field stabilizing rings for reduced high-level distortion
  • 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

SW263WA03-freq-response

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: 1/12 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

SW263WA03-imp-response
SW263WA01-freq-response

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: 1/12 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

SW263WA01-imp-response

NOMINAL SPECIFICATIONS

Notes

  Parameter

SW263WA03

SW263WA01

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

300

300

[Hz]

1, 3

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

86

84

[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

314

314

[sq.cm]

3, 6

Resonance frequency (free air, no baffle), Fs

29

27

23

20.5

[Hz]

 

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

173

159

[g]

3

Force factor, Bxl

14.2

18.7

[N/A]

3, 6

Suspension compliance, Cms

0.18

0.20

0.29

0.38

[mm/N]

3, 6

Equivalent air volume, Vas

25

28

40.6

53

[lit.]

3, 6

Mechanical resistance, Rms

3.3

3.4

2.1

2.1

[Ns/m]

3, 6

Mechanical Q, Qms

9.4

8.8

11.4

10

[-]

3, 6

Electrical Q, Qes

0.52

0.50

0.42

0.37

[-]

3, 6

Total Q, Qts

0.50

0.47

0.41

0.36

[-]

4

Voice coil resistance, RDC

3.4

6.3

[ohm]

5

Voice coil inductance, Le (measured at 1 kHz)

1.5

2.5

[mH]

 

Voice coil inside diameter

51

51

[mm]

 

Voice coil winding height

32

32

[mm]

 

Air gap height

8

8

[mm]

 

Theoretical linear motor stroke, Xmax

12

12

[mm]

 

Magnet weight

2.7

2.7

[kg]

 

Total unit net weight excl. packaging

6.2

6.2

[kg]

3, 5

Krm

5.7

10.1

[mohm]

3, 5

Erm

0.76

0.75

[-]

3, 5

Kxm

11.2

15.2

[mH]

3, 5

Exm

0.75

0.77

[-]

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 exiting 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

SW263WA01/03 outline drawing
SW263WA01-outline-drawing

TERMINALS

SW263WA01_03_terminals

PACKAGING AND ORDERING INFORMATION

Part no. SW263WA03-01

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

Part no. SW263WA01-01

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

Latest update: March 28, 2015

 

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

SW263WA03 data sheet PDF data sheet
(1,022 KB)

 

 

 

 

 

 

SW263WA01 enclosure simulationsSW263WA01
(8 ohm) enclosure simulations

 

SW263WA03 enclosure simulationsSW263WA03
(4 ohm) enclosure simulations

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