WR 180
180 WR 33 102 PPB AL 8 ohm    -    Order ID: 832732

6" bass reflex woofer with a clear and precise sound - an excellent deep bass performance. Aluminium ring in the magnet system ensures a very low distortion. Furthermore, it has a high power handling and a good sensibility.

 

 

 

 

WR 180

 

 

 

 

 

 

 

Thiele Small parameters:

 

 

Free air

Common

Baffled

 

 

Nominal impedance

Zn

(ohm)

 

8

 

 

 

Minimum impedance/at freq.

Zmin

(ohm/Hz)

 

6.8/323

 

 

 

Maximum impedance

Zo

(ohm)

 

34.2

 

 

 

DC resistance

Re

(ohm)

 

6.1

 

 

 

Voice coil inductance

Le

(mH)

 

0.9

 

 

 

Capacitor in series with 8 ohm
(for impedance compensation)

Cc

(F)

 

8

 

 

 

Resonance Frequency

fs

(Hz)

35.2

 

34.1

 

 

Mechanical Q factor

Qms

 

1.63

 

1.69

 

 

Electrical Q factor

Qes

 

0.35

 

0.36

 

 

Total Q factor

Qts

 

0.29

 

0.30

 

 

F (Ratio fs/Qts)

F

(Hz)

 

 

114

 

 

Mechanical resistance

Rms

(Kg/s)

 

2.01

 

 

 

Moving mass

Mms

(g)

14.8

 

15.8

 

 

Suspension compliance

Cms

(mm/N)

 

1.38

 

 

 

Effective cone diameter

D

(cm)

 

12.9

 

 

 

Effective piston area

Sd

(cm)

 

130

 

 

 

Equivalent volume

VAS

(ltrs)

 

32.9

 

 

 

Force factor

Bl

(N/A)

 

7.5

 

 

 

Reference voltage sensitivity
Re 2.83V 1m at 323 Hz (Measured)

 

(dB)

 

 

87.9

 

 

 

Magnet and voice coil parameters:

 

 

 

 

 

 

 

Voice coil diameter

d

(mm)

33

 

 

 

 

Voice coil length

h

(mm)

17.0

 

 

 

 

Voice coil layers

n

 

2

 

 

 

 

Flux density in gap

B

(T)

1.13

 

 

 

 

Total useful flux

 

(mWb)

1.03

 

 

 

 

Height of the gap

hg

(mm)

6

 

 

 

 

Diameter of magnet

dm

(mm)

102

 

 

 

 

Height of magnet

hm

(mm)

16

 

 

 

 

Weight of magnet

 

(kg)

0.54

 

 

 

 

 

Power handling:

 

 

 

 

 

 

Long term Max System Power (IEC)

(W)

150

 

 

 

 

Max linear SPL (rms) / by power

(dB/W)

106/90