ตู้ลำโพง ยี่ห้อ JBL รุ่น VPX728S
Features:
- Dual 18” JBL 2044H woofer for extended low frequency output
- Large vent port for reduced distortion
- Enclosure constructed of premium plywood and finished in black DuraFlex™ coating
- Heavy-duty 16-gauge protective screen backed steel grille
- Vertical orientation for convenient ground stacking
Specifications
- Frequency Range (-10 dB) : 35 Hz – 250 Hz
- Frequency Response (±3 dB) : 40 Hz – 250 Hz
- Input Connection Modes : Internally configurable, +1/-1 or +2/-2
- Recommended Crossover : 80 Hz, 24 – 48 dB/octave
- Power Rating (Continuous/Program/Peak) : 1000 W/2000 W/4000 W, 2 hrs , 800 W/1600 W/3200 W, 100 hrs
- Maximum SPL : 133 dB continuous (139 dB peak)
- Sensitivity (1w@1m) : 97 dB SPL; 103 dB SPL
- LF Driver : 2 × 18” (457 mm) JBL 2044H woofer
- Nominal Impedance : 4 Ohms
- Mounting : Top mounted 35 mm socket for optional SS3-BK pole
- Enclosure : Rectangular, 18 mm, plywood
- Finish : Black DuraFlexTM finish
- Grille : Powder coated, black, 16-gauge perforated steel with acoustically transparent black screen backing
- Input Connectors : 2 × Neutrik® Speakon® NL-4
- Dimensions (H × W × D) : 1080 mm × 533 mm × 700 mm(42.5 in × 21.0 in × 27.6 in)
- Net Weigh : 54.16 Kg (119.4 lbs)



























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