Jl AUDIO 12TW1

Žemų dažnių garsiakalbis 30 cm. Galia: 300 W RMS. Varža: 4 Ω

SPECS:

SIZES 10″/12″
WEIGHT 10″: 10.5 lbs (4.8 kg)
12″: 16.5 lbs (7.5 kg)
CONTINUOUS POWER HANDLING (RMS) 300 W
SENSITIVITY (SPL @ 1 W/1 M) 10″ (2 Ω): 82.5 dB
10″ (4 Ω): 82.2 dB
12″ (2 Ω): 85.07 dB
12″ (4 Ω): 85.15 dB
NOMINAL IMPEDANCE 2 Ω or 4 Ω
RECOMMENDED AMPLIFIER POWER (RMS) 75-300 W
CONE MATERIAL Mineral-filled polypropylene
GRILLE(S) INCLUDED
WARRANTY 1 year
Connections
SPEAKER CONNECTIONS Spade connectors
Mounting Dimensions
FRAME OUTER DIAMETER 10″: 10.375″ (264 mm)
12″: 12.375″ (314 mm)
MOUNTING DEPTH CLEARANCE 10″: 4.36″ (111 mm)
12″: 4.62″ (117 mm)
FRONTAL GRILLE PROTRUSION 0.87″ (22 mm)
MOUNTING HOLE 10″: 9.0625″ (230 mm)
12″: 11.0625″ (281 mm)
BOLT HOLE CIRCLE 10″: 9.7″ (246 mm)
12″: 11.7″ (297 mm)
MOTOR OUTER DIAMETER 10″: 4.54″ (115 mm)
12″: 5.71″ (145 mm)
DRIVER DISPLACEMENT 10″: 0.047 cu ft (1.33 L)
12″: 0.072 cu ft (2.04 L)
Parameters
FREE AIR RESONANCE (FS) 10″ (2 Ω): 41.45 Hz
10″ (4 Ω): 38.09 Hz
12″ (2 Ω): 35.06 Hz
12″ (4 Ω): 32.35 Hz
ELECTRICAL “Q” (QES) 10″ (2 Ω): 0.696
10″ (4 Ω): 0.639
12″ (2 Ω): 0.61
12″ (4 Ω): 0.555
MECHANICAL “Q” (QMS) 10″ (2 Ω): 9.7
10″ (4 Ω): 10.07
12″ (2 Ω): 10.662
12″ (4 Ω): 11.066
TOTAL “Q” (QTS) 10″ (2 Ω): 0.649
10″ (4 Ω): 0.601
12″ (2 Ω): 0.577
12″ (4 Ω): 0.529
EQUIVALENT COMPLIANCE (VAS) 10″ (2 Ω): 0.364 cu ft (10.31 L)
10″ (4 Ω): 0.429 cu ft (12.15 L)
12″ (2 Ω): 1.008 cu ft (28.54 L)
12″ (4 Ω): 1.189 cu ft (33.67 L)
ONE-WAY LINEAR EXCURSION (XMAX; SPECS ARE DERIVED VIA ONE-WAY VOICE COIL OVERHANG METHOD WITH NO CORRECTION FACTORS APPLIED) 0.40″ (10 mm)
EFFECTIVE PISTON AREA (SD) 10″: 41.602 in² (0.0268 m²)
12″: 67.608 in² (0.0436 m²)
DC RESISTANCE (RE) 10″ (2 Ω): 2.428 Ω
10″ (4 Ω): 3.516 Ω
12″ (2 Ω): 2.430 Ω
12″ (4 Ω): 3.514 Ω
Sealed Enclosure Specifications
WALL THICKNESS 0.75″ (19 mm)
FRONT BAFFLE THICKNESS 0.75″ (19 mm)
VOLUME (NET INT.) 10″: 0.35 cu ft (9.91 L)
12″: 0.65 cu ft (18.41 L)
EXTERNAL WIDTH (W) 10″: 16.125″ (410 mm)
12″: 26.50″ (673 mm)
EXTERNAL HEIGHT (H) 14″ (356 mm)
EXTERNAL DEPTH (D) 10″: 5.25″ (133 mm)
12″: 5.50″ (140 mm)
-3 DB CUTOFF FREQUENCY (F3) 10″ (2 Ω): 48.31 Hz
10″ (4 Ω): 47.24 Hz
12″ (2 Ω): 45.83 Hz
12″ (4 Ω): 45.44 Hz
SYSTEM RESONANCE (FC) 10″ (2 Ω): 59.21 Hz
10″ (4 Ω): 56.83 Hz
12″ (2 Ω): 55.99 Hz
12″ (4 Ω): 54.41 Hz
SYSTEM Q AT RESONANCE (QTC) 10″ (2 Ω): 0.927
10″ (4 Ω): 0.897
12″ (2 Ω): 0.92
12″ (4 Ω): 0.89
Ported Enclosure Specifications
WALL THICKNESS 0.75″ (19 mm)
FRONT BAFFLE THICKNESS 0.75″ (19 mm)
VOLUME (NET INT.) 10″: 0.625 cu ft (17.7 L)
12″: 1.125 cu ft (31.86 L)
EXTERNAL WIDTH (W) 10″: 26.625″ (676 mm)
12″: 31.75″ (806 mm)
EXTERNAL HEIGHT (H) 16″ (406 mm)
EXTERNAL DEPTH (D) 10″: 5.25″ (133 mm)
12″: 7″ (178 mm)
INTERNAL SLOT PORT WIDTH 10″: 3.75″ (95 mm)
12″: 5.50″ (140 mm)
INTERNAL SLOT PORT HEIGHT 10″: 1.875″ (48 mm)
12″: 2.25″ (57 mm)
INTERNAL SLOT PORT LENGTH 10″: 22.50″ (572 mm)
12″: 22.625″ (575 mm)
PORT EXTENSION LENGTH 10″: 20.8125″ (529 mm)
12″: 20.75″ (527 mm)
TUNING FREQUENCY (FB) 10″: 35.0 Hz
12″: 34.0 Hz
-3 DB CUTOFF FREQUENCY (F3) 10″ (2 Ω): 0.927
10″ (4 Ω): 0.897
12″ (2 Ω): 0.92
12″ (4 Ω): 0.89