JBL JRX212D ตู้ลำโพง 12 inch, 2 way speaker system

 

• JBL 12 in low frequency driver with a 64 mm (2.5 in) diameter edgewound ribbon voice coil which provides more cross-sectional wire area in the voice coil gap than round wire designs, for greater efficiency and power handling.

• JBL 2414H-C 25 mm (1 in) polymer diaphragm compression driver improves high frequency performance as well as system reliability.

• The advanced network topology crossover design shapes frequency response and delivers "coherent summation" in the crossover region.

• High-voltage capacitors and inductors with massive cores and heavy gauge wire enable the crossover network to handle high power without saturating.

• Progressive Transition™ high frequency waveguide provides superior coverage control, reduced distortion, and smoother frequency response.

• The rugged, acoustically superior enclosure is constructed from 19 mm (.75 in) MDF (Medium Density Fiberboard) using advanced adhesives and mechanical fastener technology for extreme durability and improved low-frequency performance.

• SonicGuard™ protects the high frequency driver from excess power without interrupting the performance.

• Non-resonant, all-steel handles are used.

• Attractive 18-gauge hexagon perforated, steel grille protects components from damage.

• Dual-angle pole-mount socket allows the speaker to tilt 10°for more uniform audience coverage.

SPECIFICATIONS

 

Power Rating250 W / 1000 W

 Frequency Range (-10 dB)60 Hz - 20 kHz

 Frequency Response (±3 dB)80 Hz - 18 kHz

 Sensitivity (@1m)98 dB SPL (1w/1m)

 Nominal Impedance8 ohms

 Recommended Amplifier Power250 W to 500 W into 8 ohms

 Maximum SPL128 dB

 Nominal Dispersion90º x 50º

 Crossover Frequency2.1 kHz

 Dimensions 
(H x W x D)584 mm x 399 mm x 325 mm
(23 in x 15.7 in x 12.8 in)

 Weight19.5 kg (43 lb)

 High Frequency DriverJBL 2414H-C , 1" exit compression driver mounted on Progressive Transition™ Waveguide

 Low Frequency DriverJBL M112-8

 Input ConnectorsNeutrik® Speakon® NL-4 (x1); .25 in
TS phone jack (x1); parallel