JBL 1000 GTI User Manual

1000GTi 10" Woofer – Technical Data

SPECIFICATIONS

DIAMETER:			10" (254.0 MM)
SENSITIVITY (2.83 V @ 1 M):			90 dB
POWER HANDLING:			300 WRMS
FREQUENCY RESPONSE:			30 ~ 3,500 HZ
NOMINAL IMPEDANCE:			4 OHMS
VOICE-COIL DIAMETER:			3.0" (76.2 MM)
DIMENSIONS:

mounting depth 4.32" (109.54 mm)

IMPEDANCE CURVE

100.0	Ohms
30.0
10.0
3.0
1.0	20 Frequency	50	100 Hz	200	500	1k	2k

cutout diameter		INFINITE BAFFLE
9.00" (228.60 mm)		FREQUENCY RESPONSE @ 2.83 V
outer diameter
10.25" (260.35 mm)	100	dB
	95	In-Car
		12 dB LP @ 80 Hz

THIELE-SMALL PARAMETERS			90
VOICE COIL DC RESISTANCE:	REVC (OHMS) . . . . . . 3.20		85	Out-Of-Car
VOICE COIL INDUCTANCE @ 1 KHZ: LEVC (MH). . . . . . . . 0.49			80
DRIVER RADIATING AREA:	SD (IN2) . . . . . . . . 53.24		75
	SD (CM2). . . . . . . 345.00		70
MOTOR FORCE FACTOR:	BL (TM) . . . . . . . . 10.04		65
COMPLIANCE VOLUME:	VAS (FT3). . . . . . . . . 0.81
			60
	VAS (LITERS). . . . . . 18.98
				20 Frequency	50	100 Hz	200	500	1k	2 k
SUSPENSION COMPLIANCE:	CMS (µM/N) . . . . 112.29			INFINITE BAFFLE
MOVING MASS, AIR LOAD:	MMS (GRAMS) . . . . . 58.68
MOVING MASS, DIAPHRAGM:	MMD (GRAMS). . . . . 55.00			EXCURSION/GROUP DELAY @ 100 W
FREE-AIR RESONANCE:	FS (HZ) . . . . . . . . 62.00		8.0	Xd mM						T mSec	10.0
MECHANICAL Q:	QMS . . . . . . . . . . . . 5.44		7.0								7.5
ELECTRICAL Q:	QES . . . . . . . . . . . . 0.73		6.0								5.0
TOTAL Q:	QTS . . . . . . . . . . . . 0.64		5.0								2.5
MAGNETIC-GAP HEIGHT:	HAG (IN) . . . . . . . . . 0.28
							Group Delay
	HAG (MM)	. . . . . . . . 7.11	4.0								0.0
			3.0								-2.5
VOICE-COIL HEIGHT:	HVC (IN) . . . . . . . . . 0.75
							Transducer Excursion
	HVC (MM)	. . . . . . . 19.05	2.0								-5.0
MAXIMUM EXCURSION:	XMAX (IN)	. . . . . . . . 0.24	1.0								-7.5
	XMAX (MM). . . . . . . . 5.97		0.0	20 Frequency	50	100 Hz	200	500	1k		-10.0
										2 k
							JBL Technical Data . . . . . 7•47

1000GTi 10" Woofer – Technical Data

SEALED

BOX VOLUME

GTi1000

(side view)

VBOX = 1.75 ft3 (49.56 liters)

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

VENTED

BOX VOLUME

length = 7.26"	Port
GTi1000	fo = 42 Hz
(side view)
VBOX = 1.50 ft3 (42.48 liters)	diameter = 4.0"
(all sides lined with 1-inch fiberglass or fiberfill)

SEALED		VENTED
FREQUENCY RESPONSE @ 2.83 V		FREQUENCY RESPONSE @ 2.83 V

100

95

90

85

80

75

70

65

60

20.0

17.5

15.0

12.5

10.0

7.5

5.0

2.5

0.0

dB									105	dB	In-Car
											12 dB LP @ 90 Hz
	In-Car								100
	12 dB LP @ 70 Hz
									95
											Out-Of-Car
									90
	Out-Of-Car
									85
									80
									75
									70
									65
20	Frequency	50	100 Hz	200	500	1k	2 k			20 Frequency	50	100 Hz	200	500	1k	2 k
SEALED										VENTED
EXCURSION/GROUP DELAY @ 300 W										EXCURSION/GROUP DELAY @ 375 W
Xd mM							T mSec	100	20.0	Xd mM						T mSec	100
								75	17.5								75
								50	15.0								50
								25	12.5								25
			Group Delay									Group Delay
								0.0	10.0								0
								-25	7.5								-25
			Transducer Excursion					-50	5.0			Transducer Excursion					-50
								-75	2.5								-75
							-100		0							-100
20	Frequency	50	100 Hz	200	500	1k	2 k			20 Frequency	50	100 Hz	200	500	1k	2 k

7•48 . . . . . JBL Technical Data