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PR312WA02/03     12 die cast, alu cone, passive radiators

 

 

 

The two models PR312WA02 and PR312WA03 are identical except for cone colour. PR312WA02: Natural coloured alu cone, PR312WA03: Black alu cone.
PR312WA02/03 are passive units designed for dedicated subwoofer applications - as partners for our active subwoofer units.
Due to low mechanical losses they master equally well low level details and extreme dynamic requirements.
For demanding sub bass applications using a passive unit is usually the only real alternative to sealed enclosures with active bass boost.
To make experimenting and individual tuning convenient and easy, PR312WA02/03 are delivered with three separate extra loads that are easily applied onto a threaded rod on the rear side of the cone.

Specifications
Dimensions
Ordering info

PR312WA02-exchangeable-weights

FEATURES

  • Extremely rigid alu cone for precise transient response
  • Rigid die cast chassis with extensive venting for lower air flow speed reducing audible distortion
  • Low-loss suspension (high Qm) for better reproduction of details and dynamics
  • Conex spider for better durability under extreme conditions
  • Custom tunable by adding one or more of the three extra weights (included)

NOMINAL SPECIFICATIONS

Notes

  Parameter

Before burn-in

After burn-in

Unit

 

Nominal size

12

[inch.]

 

Effective radiating area, Sd

488

[sq.cm]

1
 

Resonance frequency (free air, no baffle), Fs
       - without additional mass
       - with additional 50 g mass
       - with additional 100 g mass
       - with additional 150 g mass
       - with additional 200 g mass
       - with additional 250 g mass
       - with additional 300 g mass
       - with additional 350 g mass

  
18.4
16.9
15.8
14.8
14.0
13.3
12.7
12.2

 

[Hz]

2

Moving mass, incl. air (free air, no baffle), Mms, without extra weights

278

[g]

1

Suspension compliance, Cms

0.27

 

[mm/N]

1

Equivalent air volume, Vas

91

 

[lit.]

1
 

Mechanical Q, Qms
       - without additional mass
       - with additional 50 g mass
       - with additional 100 g mass
       - with additional 150 g mass
       - with additional 200 g mass
       - with additional 250 g mass
       - with additional 300 g mass
       - with additional 350 g mass

  
27
29.3
31.4
33.5
35.4
37.2
38.9
40.5

 

[-]

 

Maximum cone travel, mechanical limits, Xmax

25

[mm]

 

Total unit net weight excl. packaging (incl. 3 extra weights)

1.8

[kg]

Note 1

The unit is not burned in before shipping.

Note 2
 

The moving mass may be increased in 50 g steps up to a maximum of +350 g by adding one or more of the three extra weights that are included with the unit.

OUTLINE DRAWING AND NOMINAL DIMENSIONS (mm)

Dimensions in mm

PR270WA01 outline drawing
PR312WA03-outline-DWG

PACKAGING AND ORDERING INFORMATION

Part no. PR312WA02-01

Natural alu colour cone, Individual packaging (one piece per box), incl. 3 detachable weights

Part no. PR312WA03-01

Black alu cone, Individual packaging (one piece per box), incl. 3 detachable weights

Latest update: April 30, 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

PR312WA02/03 specificationsPDF data sheet
(465 KB)

 

Suggested active subwoofer drivers:

12” SW312WA03/04/05/06

10” SW259WA01/02

 

PR270WA01 specificationsAll Wavecor subwoofers
(overview)

 

PR270WA01 specificationsAll Wavecor transducers
(overview)

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