BAG END QUARTZ-I 超低音 18寸4支
http://img409.imageshack.us/img409/8565/quartzilg.jpg
The QUARTZ-I is a very high output concert INFRA™ subwoofer system designed to minimize the space required to obtain extremely high level and high fidelity Extended low frequency output. The QUARTZ-I provides perfectly flat response down to 8 Hertz when used in conjunction with the 8 Hertz Integrator or down to 18 Hertz when used with the INFRA-M Integrator.
SPECIFICATIONS:
SYSTEM COMPONENTS
ACOUSTIC AND ELECTRICAL PHYSICAL Enclosure:
18 mm 13-ply birch plywood
Low Frequency Transducers:
4 - 18" INFRA cone
3" Voice coil
120 oz. Magnet
Input Connectors:
2 - Connector plates with:
Dual Banana and Neutrik Speakon Custom connector configurations available
Grille:
14 Gauge black powder coated perforated steel in an extruded aluminum frame with weather seal
Standard Hardware:
16 - Machined aluminum speaker mounting clamps
Optional Hardware:
Rigging pointsSystem Type:
INFRA 4 - Sealed chambers
(3 cu. ft. each)
Impedance:
4 Ohms each input
Crossover Network:
Requires INFRA Integrator
Recommended Crossover
Frequency:
80 Hz
Frequency Response:
20 Hz to 65 Hz +/-2 dB
(2 pi Steradians, with
8 Hertz Integrator)
Sensitivity:
99 dB SPL @ 45 Hz (1W @ 1m) (for additional information, see INFRA
Speaker Sensitivity Technical Note)
Power Handling:
1600 W continuous programFinish:
Black textured paint
Dimensions:
40"h x 30"w x 31"d
102 cm x 76 cm x 79 cm
Trapezoidal, 60 degree taper per side
Weight:
224 lbs.
102 kg
Shipping Dimensions:
45" x 35" x 39"
115 cm x 89 cm x 99 cm
Shipping Weight:
276 lbs.
126 kg