JBL 1800GTI Manual de instrucciones

SPECIFICATIONS

DIAMETER: 18" (0.71 MM)

SENSITIVITY (2.83 V @ 1 M): 95 dB

POWER HANDLING: 600 WRMS

FREQUENCY RESPONSE: 20 ~ 300 HZ

NOMINAL IMPEDANCE:4OHMS

VOICE-COIL DIAMETER: 4.0" (102 MM)

DIMENSIONS:

THIELE-SMALL PARAMETERS

VOICE COIL DCRESISTANCE:R

EVC (OHMS) . . . . . . 2.50

VOICE COIL INDUCTANCE @ 1 KHZ:L

EVC (MH). . . . . . . . 0.98

DRIVER RADIATING AREA:S

D(IN2) . . . . . . . 195.99

SD(CM2). . . . . . 1270.00

MOTOR FORCE FACTOR:BL(TM) . . . . . . . . 13.51

COMPLIANCE VOLUME:V

AS (FT3). . . . . . . . 15.37

VAS (LITERS). . . . . 362.61

SUSPENSION COMPLIANCE:C

MS (µM/N) . . . . 158.32

MOVING MASS, AIR LOAD:M

MS (GRAMS) . . . . 177.77

MOVING MASS, DIAPHRAGM:M

MD (GRAMS). . . . 151.75

FREE-AIR RESONANCE:F

S(HZ) . . . . . . . . 30.00

MECHANICAL Q: QMS . . . . . . . . . . . . 6.77

ELECTRICAL Q: QES . . . . . . . . . . . . 0.46

TOTAL Q: QTS . . . . . . . . . . . . 0.43

MAGNETIC-GAP HEIGHT:H

AG (IN) . . . . . . . . . 0.32

HAG (MM) . . . . . . . . 8.13

VOICE-COIL HEIGHT:H

VC (IN) . . . . . . . . . 0.75

HVC (MM) . . . . . . . 19.05

MAXIMUM EXCURSION:X

MAX (IN) . . . . . . . . 0.22

XMAX (MM). . . . . . . . 5.46

IMPEDANCE CURVE

INFINITE BAFFLE

FREQUENCY RESPONSE @ 2.83 V

INFINITE BAFFLE

EXCURSION/GROUP DELAY @ 150 W

1800GTi18" Woofer – Technical Data

7•56 . . . . . JBL Technical Data

mounting depth

6.81" (173.04 mm)

cutout diameter

16.88" (428.63 mm)

outer diameter

18.25" (463.55 mm)

Ohms

100.0

1.0

3.0

10.0

30.0

20 Frequency 50 100 Hz 200 500 1k 2k

110

105

100

20 Frequency 50 100 Hz 200 500 1k 2k

Out-Of-Car

In-Car

12 dB LP @ 70 Hz

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 2k

Transducer Excursion

Group Delay

GTi1800

(side view)

(3) Ports

fo= 28 Hz

diameter = 4.0"

length = 5.47"

VBOX = 11.90 ft3 (337.01 liters)

(all sides lined with 1-inch fiberglass or fiberfill)

115

110

105

100

20 Frequency 50 100 Hz 200 500 1k 2k

Out-Of-Car

In-Car

12 dB LP @ 80 Hz

Xd mM

T mSec 40

-10

-20

-30

-40

20 Frequency 50 100 Hz 200 500 1k 2k

Transducer Excursion

Group Delay

VBOX = 6.50 ft3 (184.08 liters)

(all sides lined with 1-inch fiberglass or fiberfill)

GTi1800

(side view)

105

100

20 Frequency 50 100 Hz 200 500 1k 2k

Out-Of-Car

In-Car

12 dB LP @ 70 Hz

Xd mM

20.0

17.5

15.0

12.5

10.0

7.5

5.0

2.5

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 2k

Transducer Excursion

Group Delay

SEALED

BOX VOLUME

SEALED

FREQUENCY RESPONSE @ 2.83 V

SEALED

EXCURSION/GROUP DELAY @ 600 W

VENTED

BOX VOLUME

VENTED

FREQUENCY RESPONSE @ 2.83 V

VENTED

EXCURSION/GROUP DELAY @ 600 W

1800GTi18" Woofer – Technical Data

JBL Technical Data . . . . . 7•57

SEALED BANDPASS

BOX VOLUME

SEALED BANDPASS

FREQUENCY RESPONSE @ 2.83 V

SEALED BANDPASS

EXCURSION/GROUP DELAY @ 600 W

NOTES

1800GTi18" Woofer – Technical Data

7•58 . . . . . JBL Technical Data

VREAR =

6.50 ft3 (184.08 liters)

(all sides lined with 1-inch fiberglass or fiberfill)

GTi1800

(side view)

VFRONT =

2.20 ft3

(62.30 liters)

(all sides lined with 1-inch

fiberglass or fiberfill)

diam. = 4"

length =

9.11"

(3)Ports

fo= 55 Hz

110

105

100

20 Frequency 50 100 Hz 200 500 1k 2k

Out-Of-Car

In-Car

12 dB LP @ 80 Hz

Xd mM

20.0

17.5

15.0

12.5

10.0

7.5

5.0

2.5

0.0

T mSec 40

-10

-20

-30

-40

20 Frequency 50 100 Hz 200 500 1k 2k

Transducer Excursion

Group Delay

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