JBL GTO1204D User Manual

SPECIFICATIONS
DIAMETER:12" (305MM)
S
E
NSITIVITY
(2.83 V @ 1 M): 93 dB
P
OWER HANDLING:300 W 1200 W
PEAK
RMS
FREQUENCY RESPONSE: 23 ~ 400 HZ
NO
MINAL
IM
PEDANCE
:2 or 8 O
HMS
VOICE-COIL DIAMETER:2.0" (51.0 MM)
D
IMENSIONS:
THIELE-SMALL PARAMETERS
VOICE COIL DC RESISTANCE:R
EVC
(OHMS) . . . . . . 1.93
V
OICE COIL INDUCTANCE @ 1 KHZ:L
EVC
(MH) . . . . . . . 1.10
D
RIVER RADIATING AREA:S
D
(IN
2
) . . . . . . . . 82.46
S
D
(M
2
) . . . . . . . 532.00
M
OTOR FORCE FACTOR:BL (TM) . . . . . . . 10.17
C
OMPLIANCE VOLUME:V
AS
(FT
3
) . . . . . . . . 3.34
V
AS
(LITERS) . . . . . 94.47
S
USPENSION COMPLIANCE:C
MS
(µM/N) . . . . 233.70
M
OVING MASS, AIR LOAD:M
MS
(GRAMS). . . . 181.00
M
OVING MASS, DIAPHRAGM:M
MD
(GRAMS) . . . 173.80
F
REE-AIR RESONANCE:F
S
(HZ) . . . . . . . . 24.50
M
ECHANICAL Q: Q
MS
. . . . . . . . . . . 6.97
E
LECTRICAL Q: Q
ES
. . . . . . . . . . . 0.52
T
OTAL Q: Q
TS
. . . . . . . . . . . . 0.48
M
AGNETIC-GAP HEIGHT:H
AG
(IN) . . . . . . . . 3/8
H
AG
(MM) . . . . . . . . 9.00
V
OICE-COIL HEIGHT:H
VC
(IN) . . . . . . 1-5/16
H
VC
(MM) . . . . . . . . . . 34
M
AXIMUM EXCURSION:X
MAX
(IN) . . . . . . . . 1/2
X
MAX
(MM) . . . . . . 12.50
SEALED BOX VOLUME
(INCLUDES DRIVER DISPLACEMENT)
SEALED ENCLOSURE
FREQUENCY RESPONSE @ 2.83 V
SEALED ENCLOSURE CONE
EXCURSION @ 300 W
Harman Consumer Group • 250 Crossways Park Drive • Woodbury, NY 11797 • VOICE: 516-674-4463 • www.infinitysystems.com
mounting depth
5-1/16" (129 mm)
cutout diameter
11-3/16" (284mm)
outer diameter
12-7/16" (316mm)
V
B
OX
= 1.00 ft
3
(28.32 liters)
JBL GTO 1204D
(
side view)
20 Hz
30 40 50 60 70 80 90
100
200300
20 Hz
30 40 50 60 70 80 90
100
200300
d
BSPL
55
60
6
5
70
75
80
85
90
9
5
1
00
105
M
5u
10u
20u
50u
100u
200u
500u
1m
2m
5m
10m
20m
30m
O
ut-Of-Car
In-Car
12 dB LP @ 80 Hz
GTO 1204D 12" Woofer – Technical Data

JBL GTO1204D Specifications

General

Brand	JBL
Model	GTO1204D
Category	Subwoofer
Language	English

Summary

Specifications

Speaker Diameter

Specifies the diameter of the speaker driver.

Sensitivity

Measures speaker's sound output at a given power level.

Power Handling

Indicates the continuous and peak power capacity.

Frequency Response

Defines the range of audible frequencies the speaker reproduces.

Nominal Impedance

Specifies the speaker's electrical impedance.

Voice-Coil Diameter

Measures the diameter of the speaker's voice coil.

Dimensions

Details the physical size and mounting requirements.

Thiele-Small Parameters

Voice Coil DC Resistance

DC resistance of the voice coil.

Voice Coil Inductance

Voice coil inductance at 1 kHz.

Driver Radiating Area

Effective radiating area of the driver cone.

Motor Force Factor

Motor force factor.

Compliance Volume

Equivalent volume of air.

Suspension Compliance

Compliance of the suspension system.

Moving Mass, Air Load

Moving mass including air load.

Moving Mass, Diaphragm

Moving mass of the diaphragm.

Free-Air Resonance

Free-air resonance frequency.

Mechanical Q

Mechanical Q factor.

Electrical Q

Electrical Q factor.

Total Q

Total Q factor.

Magnetic-Gap Height

Height of the magnetic gap.

Voice-Coil Height

Height of the voice coil.

Maximum Excursion

Maximum voice coil excursion.

Sealed Box Volume

Box Volume Calculation

Recommended sealed enclosure volume for optimal performance.

Sealed Enclosure Frequency Response

Frequency Response Graph

Graph showing speaker's frequency response in a sealed enclosure.

Sealed Enclosure Cone Excursion

Cone Excursion Graph

Graph illustrating cone excursion at 300W in a sealed enclosure.

Vented Box Volume

Vented Enclosure Design

Details for a vented enclosure including port dimensions.

Vented Enclosure Frequency Response

Frequency Response Graph

Graph showing speaker's frequency response in a vented enclosure.

Vented Enclosure Cone Excursion

Cone Excursion Graph

Graph illustrating cone excursion at 300W in a vented enclosure.

Bandpass Box Volume

Bandpass Enclosure Design

Details for a bandpass enclosure with two ports.

Bandpass Enclosure Frequency Response

Frequency Response Graph

Graph showing speaker's frequency response in a bandpass enclosure.

Bandpass Enclosure Cone Excursion

Cone Excursion Graph

Graph illustrating cone excursion at 300W in a bandpass enclosure.