Jensen Loudspeakers P-A-P12Q User Manual

Loudspeakers

12"-40W Vintage Alnico Guitar Loudspeaker

P12Q - 8W / 16W / 32W

GENERAL CHARACTERISTICS
Nominal Overall Diameter 306 mm. 12 in.
Nominal Voice Coil Diameter 32 mm. 1.25 in.
Magnet Weight 300 g 10.50 oz
Overall Weight 4.18 lbs
Flux Density 0.98 T
Voice Coil Winding Depth 0.31 in.
Magnetic Gap Depth 0.24 in.

THIELE-SMALL PARAMETERS 8W 16W 32W
Voice Coil DC Resistance

R

E

5.60 12.45 25.20 W

Resonance Frequency

ƒ

S

90.5 90.0 85.6 Hz

Mechanical Q Factor

Q

MS

11.57 12.68 10.94

Electrical Q Fa ctor

Q

ES

2.38 2.81 3.33

Total Q Factor

Q

TS

2.03 2.30 2.55

Mechanical M oving Ma ss

M

MS

26.8 25.9 25.3 g

Mechanical C ompliance

C

MS

115 122 138 µm/N

Force Factor BxL 5.88 8.05 10.15 Wb/m

Equivalent Acoustic Volume

V

AS

39.5 41.2 46.6 lt.

Maximum Linear Displacement

X

MAX

1.00 1.00 1.00 mm

Reference Efficiency

n

O

1.42 1.02 0.84 %

Diaphragm Area

S

D

490.9 490.9 490.0

cm

2

Losses Electrical Resistance

R

ES

25.5 56.3 82.7 W

Voice Coil Inductance @ 1kHz

L

E

0.67 0.60 1.59 mH

CONSTRU CTIVE CHARACTERISTICS
Magnet Alnico
Voice Coil Winding Copper
Voice Coil Former Nomex
Cone Material Paper
Surround Material Integrated Paper
Dust Dome Material Solid Paper
Basket Material Pressed Sheet Steel
Surround Treatment No

ELECTRICAL CHARACTERISTICS 8W 16W 32W
Nominal Impedance 8 16 32 W
Rated Power 40 40 50 W
Musical Power 80 80 100 W
Sensitivity@1W,1m 94.4 96.1 92.3 dB

305.5

277.04.0

82.6

2.5

n° 9 holes 9×6.5
at 45° on Ø293. 5

55.0

6.0

137.6

70.0

80.0

03/08/2017

Due to continuing product improvement, the features and the design are subject to change without notice.

Jensen Loudspeakers · website: www.jensentone.com · email: [e-mail]

2 5

100

2 5

1000

2 5

10k

2

+60

+65

+70

+75

+80

+85

+90

+95

+100

+105

+110

5

10

2

5

100

2

5

Frequency Response on IEC Baffle (DIN 45575) @ 1W, 1m - Free Air Impedance

Hz

dB SPL

W

P12Q 8W

P12Q 16W

P12Q 32W