JBL DS120 User Manual

Ohms
100.0
1.0
3.0
10.0
30.0
20 Frequency 50 100 Hz 200 500 1k 2k
C
dB
105
100
95
90
85
80
75
70
65
20 Frequency 50 100 Hz 200 500 1k 2 k
Out-Of-Car
In-Car
12 dB LP @ 90 Hz
C
Xd mM
20.0
17.5
15.0
12.5
10.0
7.5
5.0
2.5
0.0
T mSec
10.0
7.5
5.0
2.5
0.0
-2.5
-5.0
-7.5
-10.0
20 Frequency 50 100 Hz 200 500 1k 2 k
Transducer Excursion
Group Delay
mounting depth
5.06" (128.56 mm)
cutout diameter
10.88" (276.23 mm)
outer diameter
12.13" (307.98 mm)
SPECIFICATIONS
DIAMETER: 12" (304.8 MM)
S
ENSITIVITY (2.83 V @ 1 M): 95 dB
P
OWER HANDLING: 200 W
RMS
FREQUENCY RESPONSE: 30 ~ 3,000 HZ
NOMINAL IMPEDANCE:4 OHMS
VOICE-COIL DIAMETER: 1.95" (49.50 MM)
D
IMENSIONS:
THIELE-SMALL PARAMETERS
VOICE COIL DC RESISTANCE:R
EVC
(OHMS) . . . . . . 4.40
V
OICE COIL INDUCTANCE @ 1 KHZ:L
EVC
(MH). . . . . . . . 2.31
D
RIVER RADIATING AREA:S
D
(IN
2
) . . . . . . . . 77.62
S
D
(CM
2
). . . . . . . 503.00
M
OTOR FORCE FACTOR:BL (TM) . . . . . . . . 12.42
C
OMPLIANCE VOLUME:V
AS
(FT
3
). . . . . . . . . 5.40
V
AS
(LITERS). . . . . 127.28
S
USPENSION COMPLIANCE:C
MS
(µM/N) . . . . 354.26
M
OVING MASS, AIR LOAD:M
MS
(GRAMS). . . . . 73.41
MOVING MASS, DIAPHRAGM:M
MD
(GRAMS). . . . . 66.92
F
REE-AIR RESONANCE:F
S
(HZ) . . . . . . . . 31.21
M
ECHANICAL Q: Q
MS
. . . . . . . . . . . . 5.09
E
LECTRICAL Q: Q
ES
. . . . . . . . . . . . 0.41
T
OTAL Q: Q
TS
. . . . . . . . . . . . 0.38
M
AGNETIC-GAP HEIGHT:H
AG
(IN) . . . . . . . . . 0.31
H
AG
(MM) . . . . . . . . 8.00
V
OICE-COIL HEIGHT:H
VC
(IN) . . . . . . . . . 0.67
H
VC
(MM) . . . . . . . 17.00
M
AXIMUM EXCURSION:X
MAX
(IN) . . . . . . . . 0.18
X
MAX
(MM). . . . . . . . 4.50
IMPEDANCE CURVE
INFINITE BAFFLE
FREQUENCY RESPONSE @ 2.83 V
INFINITE BAFFLE
EXCURSION/GROUP DELAY @ 50 W
DS120 12" Woofer – Technical Data
JBL Technical Data . . . . . . 7•5

JBL DS120 Specifications

General

Brand	JBL
Model	DS120
Category	Subwoofer
Language	English

Summary

Specifications and Performance Data

Impedance Curve

Shows speaker impedance across different frequencies.

Infinite Baffle Frequency Response

Measures driver frequency response in an infinite baffle at 2.83V.

Thiele-Small Parameters

Lists crucial parameters for enclosure design and driver performance.

Infinite Baffle Excursion and Group Delay

Details driver excursion and group delay in an infinite baffle at 50W.

Sealed Enclosure Recommendations

Sealed Box Volume and Response

Details recommended sealed enclosure volume and its frequency response.

Sealed Enclosure Excursion and Group Delay

Shows driver excursion and group delay for the sealed enclosure at 100W.

Vented Enclosure Recommendations

Vented Box Volume and Response

Details recommended vented enclosure volume and its frequency response.

Vented Enclosure Excursion and Group Delay

Shows driver excursion and group delay for the vented enclosure at 175W.

Sealed Bandpass Enclosure Recommendations

Sealed Bandpass Box Volume and Response

Details recommended sealed bandpass enclosure volume and its frequency response.

Sealed Bandpass Excursion and Group Delay

Shows driver excursion and group delay for the sealed bandpass enclosure at 125W.