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The WLA-218BA is an active line array subwoofer built around two 18" drivers with 4" voice coils in a birch plywood enclosure. It is rated for 148 dB maximum SPL at 1 m in half space, with a ±3 dB response from 30 to 100 Hz. Class D amplification, 8 FIR presets in DSP, and USB and RS485 connections are built in, and four handles help with moving its 86.8 kg net weight.
| Active or Passive | Active |
|---|---|
| System Type | Subwoofer |
| Configuration | Bass-reflex |
| System Continuous Power | 2000 W |
| System Peak Power | 4000 W |
| Max SPL @ 1m | 148 dB (Half Space) |
| Freq Response (+/-3 dB) | 30 Hz-100 Hz |
| Freq Range (-10 dB) | 25 Hz - 150 Hz |
| Bi-amp Mode Switch | No |
| Bluetooth | No |
| IP Certification | None |
| Driver Brand | Wharfedale Pro |
| LF Driver Size | 2 x 18" |
| LF Magnet Material | Ferrite |
| LF Frame Material | Aluminium |
| LF Voice Coil Size | 4″ |
| Preset Library | No |
| Input Connector | Balanced Socket XLR |
| Enclosure Material | Birch Plywood |
| Grille Material and Finish | Steel |
| Finish | Black Tough-Tone |
| Handles | 4 |
| Deployment | Ground |
| Pole Mount | None |
| Brackets Included | Yes |
| Rigging | No |
| Sensitivity 2.83 V / 1 m | 109 dB |
| Crossover Frequency | Preset Dependent |
| Amplifier design | Class D |
| Driver Protection | RMS, Peak Limiters and DC |
| Thermal Protection | Amplifier Shut Down. Auto Reset |
| DC and Short Protection | Yes |
| Signal Processing | DSP Based, 8 FIR Presets |
| Power On Protection | Power switch on/off mute |
| Low Line Voltage Shut Down | 60% Nominal Line Voltage |
| Limiter Indicator | Red LED |
| Signal Indicator | Green LED |
| Power/Active Indicator | White LED |
| Find Function Indicator | Blue LED |
| Active loudspeaker Input Impedance | Balanced: 10 KΩ |
| Link Connector | Balanced Pin XLR |
| Input sensitivity | +4 dBu |
| Max input level | +18 dBu |
| Update | USB Type B |
| Network (RS485) | RJ45 |
| AC Input Connector | powerCON |
| AC Loop Through Connector | powerCON |
| Main Power | AC 100-120 V~ and 220-240 V~, 50/60 Hz Automatic |
| Power Supply | High Efficiency Switching Mode Power Supply |
| Included Accessory | User Manual |
| Unpacked - Front Height (mm) | 560 |
|---|---|
| Unpacked - Rear Height (mm) | 560 |
| Unpacked - Width Front (mm) | 1065 |
| Unpacked - Width Rear (mm) | 1065 |
| Unpacked - Depth (mm) | 756 |
| Packed - Height (mm) | 655 |
| Packed - Width Front (mm) | 840 |
| Packed - Width Rear (mm) | 840 |
| Packed - Depth (mm) | 1150 |
| Weight - Nett (kg) | 86.8 |
| Weight - Gross (kg) | 87.7 |
No. Rigging is listed as no and deployment as ground. Use the ground-stack accessories listed in the documents.
USB Type B for updates and RS485 over RJ45 for network control.
86.8 kg net, 87.7 kg gross.
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