Jensen Loudspeakers P-A-MOD8-20 User Manual

Loudspeakers

8"-20W Mod Series Guitar Loudspeaker

Mod 8-20 - 4W / 8W

GENERAL CHARACTERISTICS
Nominal Overall Diameter 207 mm. 8 in.
Nominal Voice Coil Diameter 25 mm. 1.00 in.
Magnet Weight 160 g 5.60 oz
Overall Weight 1.50 lbs
Flux Density 1.00 T

THIELE-SMALL PARAMETERS 4W 8W
Voice Coil DC Resistance

R

E

3.26 6.50 W

Resonance Frequency

ƒ

S

111.2 119.4 Hz

Mechanical Q Factor

Q

MS

19.23 19.88

Electrical Q Fa ctor

Q

ES

1.91 2.52

Total Q Factor

Q

TS

1.74 2.24

Mechanical M oving M ass

M

MS

10.1 10.3 g

Mechanical C ompliance

C

MS

204 173 µm/N

Force Factor BxL 3.47 4.45 Wb/m

Equivalent Acoustic Volume

V

AS

13.1 11.1 lt.

Maximum Linear Displacement

X

MAX

1.50 1.00 mm

Reference Efficiency

n

O

0.90 0.72 %

Diaphragm Area

S

D

213.8 213.8

cm

2

Losses Electrical Resistance

R

ES

0.0 0.0 W

Voice Coil Inductance @ 1kHz

L

E

0.30 0.40 mH

CONSTRU CTIVE CH ARACTERISTICS
Magnet Ferrite
Voice Coil Winding Copper
Voice Coil Former Epotex
Cone Material Paper
Surround Material Integrated Paper
Dust Dome Material Non-treated Cloth
Basket Material Pressed Sheet Steel

ELECTRICAL CHARACTERISTICS 4W 8W
Nominal Impedance 4 8 W
Rated Power 20 20 W
Musical Power 40 40 W
Sensitivity@1W,1m 93.2 93.2 dB

207.0

178.5

5.0

49.0

1.0

n°4 holes Ø 8 × 5
at 90° on Ø 197.0

4.0

67.0

Ø 72.0

18.0

03/08/2017

Due to continuing product improvement, the features and the design are subject to change w ithout 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

MOD8 -20 4W

MOD8 -20 8W