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PR310WA01

PR310WA01 is a passive unit designed for dedicated subwoofer applications - as a partner to our active subwoofer units.
Due to low mechanical losses PR310WA01 masters equally well low level details and extreme dynamic requirements.
For demanding subwoofer 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, the PR310WA01 is delivered with three separate extra loads that are easily applied onto a threaded rod on the rear side of the cone (see picture below).

FEATURES

  • Extremely rigid aluminium cone for precise transient response
  • Die cast alu chassis
  • Rear M8 threaded rod for trouble free and rigid addition of extra mass
  • Delivered with three separate mass loads for easy custom tuning
PR310WA01 rear

All 3 extra weights added at the same time (+350g)

ADDING MASS

Extra mass is easily added on the rear (see picture above). Either one, two or all three included mass loads can be added, or any custom mass object can be added simply using an M8 nut for fastening. The loads included with PR310WA01 do not require any nuts as they are made with M8 threaded center holes.
For experiments trying out different values of moving mass for different tunings, it is usually sufficient just to tighten the loads/nut by hand.
Once the final mass has been determined it is recommend to add some adhesive to secure the loads from coming loose during operation.

NOMINAL SPECIFICATIONS

Nominal size

12

[inch.]

Effective radiating area, Sd

513

[sq.cm]

Resonance freq., Fs (free air), without additional mass
       - with additional 50g mass
       - with additional 100g mass
       - with additional 150g mass
       - with additional 200 g mass
       - with additional 250g mass
       - with additional 300g mass
       - with additional 350g mass

19
17.5
16.2
15.2
14.4
13.7
13.1
12.5

[Hz]
[Hz]
[Hz]
[Hz]
[Hz]
[Hz]
[Hz]
[Hz]

Moving mass (free air), without extra weight
(may be be increase in 50g steps from +50g to +350g)

270

[g]

Suspension compliance, Cms

0.26

[mm/N]

Equiv. air volume, Vas

97

[lit.]

Mechanical Q, Qm, without additional mass

13

-

Xmax  (mechanical limits)

+/- 25

[mm]

Total unit net weight (incl. 3 extra weights)

1.5

[kg]

OUTLINE DRAWING AND NOMINAL DIMENSIONS (mm)

Outline-drawing1

PACKAGING INFORMATION

Part no. PR310WA01-01

Individual packaging (one piece per box)

 

Specifications are subject to change without any further notice.
Copyright © 2006-2012 by Wavecor Ltd., Guangzhou, China. All rights reserved.

 

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MORE INFO

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Active 12” subwoofers
       4 ohm       8 ohm

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