Order ID: 830481

The passive radiator version of the 10" XLS family of drivers. The passive radiator is available in three different standard moving masses. To enable the designer to fine-tune the moving mass an M5 threaded hole has been added on the mass block. This way extra mass can be added in an easy and simple way.The moving components and the frame are the same as the 10" active driver providing the solid base for a high performance passive radiator.

 

 

SWR 308
308 SWR 51 147 NX ALP 4L XLS 8/5 ohm    -    Order ID: 830500

By introducing the new range of Xtra Long Stroke (XLS) subwoofers, Peerless has pushed the performance limits for subwoofers. The XLS/subwoofer range will fulfil every demand for deep clean bass reproduction like active THX home theatre and Dolby Digital subwoofer applications. In the design the emphasis has been put in achieving extreme deep bass, long time reliability, high power handling, and very low distortion - also under very large sound pressures. The 12" XLS is available in several different configurations from small passive radiator assisted subwoofers to classical and car applications.

 

 

 

 

SWR 308

 

 

 

 

 

 

 

Thiele Small parameters:

 

 

Free air

Common

Baffled

 

 

Nominal impedance

Zn

(ohm)

 

8

 

 

 

Minimum impedance/at freq.

Zmin

(ohm/Hz)

 

4.7/106

 

 

 

Maximum impedance

Zo

(ohm)

 

64.2

 

 

 

DC resistance

Re

(ohm)

 

3.5

 

 

 

Voice coil inductance

Le

(mH)

 

4.2

 

 

 

Capacitor in series with 8 ohm
(for impedance compensation)

Cc

(F)

 

38

 

 

 

Resonance Frequency

fs

(Hz)

18.1

 

18.1

 

 

Mechanical Q factor

Qms

 

3.70

 

3.70

 

 

Electrical Q factor

Qes

 

0.21

 

0.21

 

 

Total Q factor

Qts

 

0.20

 

0.20

 

 

F (Ratio fs/Qts)

F

(Hz)

 

 

90

 

 

Mechanical resistance

Rms

(Kg/s)

 

5.12

 

 

 

Moving mass

Mms

(g)

166.3

 

166.4

 

 

Suspension compliance

Cms

(mm/N)

 

0.46

 

 

 

Effective cone diameter

D

(cm)

 

24.4

 

 

 

Effective piston area

Sd

(cm)

 

466

 

 

 

Equivalent volume

VAS

(ltrs)

 

139.2

 

 

 

Force factor

Bl

(N/A)

 

17.6

 

 

 

Reference voltage sensitivity
Re 2.83V 1m at 106 Hz (Measured)

 

(dB)

 

 

90.6

 

 

 

Magnet and voice coil parameters:

 

 

 

 

 

 

 

Voice coil diameter

d

(mm)

51

 

 

 

 

Voice coil length

h

(mm)

33

 

 

 

 

Voice coil layers

n

 

4

 

 

 

 

Flux density in gap

B

(T)

1.04

 

 

 

 

Total useful flux

 

(mWb)

2.50

 

 

 

 

Height of the gap

hg

(mm)

8

 

 

 

 

Diameter of magnet

dm

(mm)

147

 

 

 

 

Height of magnet

hm

(mm)

35

 

 

 

 

Weight of magnet

 

(kg)

2.42