ตู้ลำโพง ยี่ห้อ JBL รุ่น VPX728S
VPX728S uses two 18” (457mm) JBL 2044H woofers in a front vented enclosure to reproduce low bands with extended frequency response and low distortion, and to stand continuous power up to 1000Watts. When placed in a standing position, a full range speaker can be stacked on its top without the need for an additional pole.
The subwoofer system offers compatibility with a variety of cabling schemes. A pair of Neutrik® Speakon® NL-4 connectors are provided and are shipped with pins +1/-1 connected to the woofer. To meet different cabling requirements, the woofer can also be re-configured to work through pins +2/-2.
VPX728S provides two handles for easy transit and set-up. Its enclosure is made from premium plywood, finished in rugged DuraFlex™ coating and braced to maximize low frequency performance. The CNC-machined 16-gauge steel grille is backed with acoustically transparent fabrics to provide additional driver protection and give a very professional appearance.”
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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