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ลำโพงซับเบส JBL PRX 718XLF Active Subwoofer 18″
ตู้ลำโพงซับเบสกลางแจ้งแบบมีกำลังขยาย JBL PRX 718XLF/230 ขนาดดอกลำโพง 18″ 1500 watt Class-D amplifier internal DSP Controller
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฿93,200.00 ฿66,900.00
Description
JBL PRX 718XLF 18″ Self-Powered Extended Low Frequency Subwoofer System
ตู้ลำโพงซับเบสกลางแจ้งแบบมีกำลังขยาย JBL PRX 718XLF/230 ขนาดดอกลำโพง 18″ 1500 watt Class-D amplifier internal DSP Controller
The PRX718XLF, extended low frequency subwoofer was designed and engineered to provide sub bass frequencies with accuracy and power. Used as a single sub in a sub/sat system or in multiples as part of a scalable, large format sound reinforcement system, the PRX718XLF performs with extreme efficiency and control.
Features:
- 134 dB peak SPL
- 18″ Differential Drive® low-frequency driver for low-distortion and higher SPL
- Efficient Class-D amplifier technology
- DSP Input limiter circuit, crossover, dynamic limiting, component optimization, selectable system EQ
- Integrated stereo pass-thru, with selectable HP filter, and polarity reverse
- 2 x XLR-1/4″ combination inputs, with 2 x XLR loop-thru
- 20 mm threaded pole socket for solid, secure satellite speaker mounting.
- Multiple handles with comfort rubber grips for easy transport
- Lightweight poplar plywood cabinets made structurally sound with tongue and groove joints and protected by JBL’s tour proven DuraFlex™finish.
- Cloth backed, dent-resistant 16 gauge steel grilles
Specifications
| Power Rating | 1500 W |
| AC Power Input | 100V – 240V~ 50/60 Hz |
| Frequency Range (-10 dB) | 30 Hz – 103 Hz |
| Frequency Response (±3 dB) | 35 Hz – 87 Hz |
| Internal Crossover Frequency | 100 Hz DSP controlled 48 dB filter slope |
| Loop out Crossover Frequency | 120 Hz analog 24 dB filter slope |
| Maximum SPL | 134 dB peak |
| Signal indicators | Limit: Yellow LED indicates peak output has been reached and dsp limiter is acting Signal: Green LED indicates signal present Power/Standby: Blue indicates system has power and ready to pass audio, Red indicates system has power but is in a power saving mode and will not pass audio. |
| Dynamic Control (Input) | dbx Type IV™ limiter circuit |
| Input Impedance | 20K Ohms (balanced) |
| Polarity | normal or reverse polarity |
| LF Driver | 1 x JBL 2278H 460 mm (18 in) woofer |
| Enclosure | Rectangular, 18 mm, plywood |
| Suspension / Mounting | M20 threaded pole socket on top |
| Transport | 2 x injection molded handles with backing cup |
| Finish | Obsidian DuraFlex™ finish |
| Grille | Powder coated, Obsidian, 16 gauge perforated steel with acoustical transparent black cloth backing. |
| Input Connectors | Two Balanced female XLR/ 1/4″ combo connectors |
| Output Connectors | Two balanced male XLR connectors. |
| Dimensions (H x W x D) | 690.372 mm x 523.24 mm x 723.9 mm (27.18 in x 20.60 in x 28.50 in) |
| Net Weight | 36.8 kg (81 lb.) |
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