Reference 1250w 12" Woofer – Technical Data - Hobbielektronika

NOMINAL IMPEDANCE: 4 OHMS. VOICE-COIL DIAMETER: 2.0" (51.0 MM). DIMENSIONS: THIELE-SMALL PARAMETERS. VOICE COIL DC RESISTANCE: R.
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Reference 1250w 12" Woofer – Technical Data CAR AU DI O

SPECIFICATIONS DIAMETER: SENSITIVITY (2.83 V @ 1 M): POWER HANDLING: FREQUENCY RESPONSE: NOMINAL IMPEDANCE: VOICE-COIL DIAMETER: DIMENSIONS:

SEALED BOX VOLUME (INCLUDES DRIVER DISPLACEMENT)

12" (300 MM ) 93 dB 300 WRMS 1200 WPEAK 23 ~ 400 HZ 4 OHMS 2.0" (51.0 MM)

Reference 1250w (side view)

VBOX = 1.25 ft3 (35.40 liters)

mounting depth 5-1/16" (129 mm)

SEALED ENCLOSURE FREQUENCY RESPONSE @ 2.83 V

cutout diameter 11-3/16" (284mm) outer diameter 12-7/16" (316mm)

105 dBSPL 100

THIELE-SMALL PARAMETERS

In-Car 12 dB LP @ 80 Hz

95 90 85

VOICE COIL DC RESISTANCE: R EVC (OHMS) . . . . . . 3.40 VOICE COIL INDUCTANCE @ 1 KHZ: L EVC (M H) . . . . . . . 2.54 S D (IN 2) . . . . . . . . 82.46 DRIVER RADIATING AREA: S D (M2) . . . . . . . 532.00 B L (TM) . . . . . . . . 14.24 MOTOR FORCE FACTOR: VAS (FT3) . . . . . . . . 3.00 COMPLIANCE VOLUME: VAS (LITERS) . . . . . 84.40 C MS (µM/N) . . . . 210.00 SUSPENSION COMPLIANCE: MMS (GRAMS). . . . 187.60 MOVING MASS, AIR LOAD: MMD (GRAMS) . . . 180.60 MOVING MASS, DIAPHRAGM: FS (HZ) . . . . . . . . 25.40 FREE-AIR RESONANCE: Q MS . . . . . . . . . . . 7.62 MECHANICAL Q: Q ES . . . . . . . . . . . 0.50 ELECTRICAL Q: Q TS . . . . . . . . . . . . 0.47 TOTAL Q: HAG (IN) . . . . . . . . 3/8 MAGNETIC-GAP HEIGHT: HAG (MM) . . . . . . . . 9.00 HVC (IN) .. . . . . . . . 1-1/4 VOICE-COIL HEIGHT: HVC (MM) . . . . . . . . . . 32 X MAX (IN) . . . . . . . . 7/16 MAXIMUM EXCURSION: X MAX (MM) . . . . . . 11.50

Out-Of-Car

80 75 70 65 60 55

20 Hz

30

40

50

60

70

80 90 100

200

300

200

300

SEALED ENCLOSURE CONE EXCURSION @ 300 W 30m M 20m 10m 5m 2m 1m 500u 200u 100u 50u 20u 10u 5u

20 Hz

30

40

50

60

70

80 90 100

Harman Consumer Group • 250 Crossways Park Drive • Woodbury, NY 11797 • VOICE: 516-674-4463 • www.infinitysystems.com

Reference 1250w 12" Woofer – Technical Data CAR AU DI O

VENTED BOX VOLUME (INCLUDES DRIVER/PORT DISPLACEMENTS)

length = 12-1/4" 312mm

Reference 1250w

BANDPASS BOX VOLUME (INCLUDES DRIVER/PORT DISPLACEMENTS)

fB= 63 Hz

fB = 30.0 Hz

Reference 1250w

(side view)

VBOX =

2 ft 3

(side view)

(56.63 liters)

diam. = 4" 102mm diameter = 4" 102mm

BANDPASS ENCLOSURE FREQUENCY RESPONSE @ 2.83 V

dBSPL

105 dBSPL 100

100

In-Car 12 dB LP @ 80 Hz

95

95

In-Car 12 dB LP @ 80 Hz

90

90

85

85

Out-Of-Car 80

80

75

75

70

70

65

65

60

60

55

20 Hz

30

40

50

60

70

80 90 100

200

300

55

VENTED ENCLOSURE CONE EXCURSION @ 300 W

Out-Of-Car

20 Hz

30

40

50

60

70

80 90 100

200

300

200

300

BANDPASS ENCLOSURE CONE EXCURSION @ 300 W

30m M 20m

30m M 20m

10m

10m

5m

5m

2m

2m

1m

1m

500u

500u

200u

200u

100u

100u

50u

50u

20u

20u

10u 5u

VFRONT = 1.25 ft3 (35.40 liters)

VREAR = 1.25 ft 3 (35.40 liters)

VENTED ENCLOSURE FREQUENCY RESPONSE @ 2.83 V 105

length = 8" 204mm

2 Ports

Port

10u 20 Hz

30

40

50

60

70

80 90 100

200

300

5u

20 Hz

30

40

50

60

70

80 90 100

Harman Consumer Group • 250 Crossways Park Drive • Woodbury, NY 11797 • VOICE: 516-674-4463 • www.infinitysystems.com