| Specification | Value |
|---|---|
| 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 |
| DC and Short Protection | Yes |
| 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 |
WLA-218BA
Dual 18″ active subwoofer with internal DSP and presets
WLA-218BA
Dual 18″ active subwoofer with internal DSP and presets
WLA-218BA is a dual 18″ active subwoofer built to deliver extreme low-frequency power for the WLA-210A active line array system. Designed for high-demand touring and fixed-install applications, it combines massive output with refined DSP control for tight, accurate, and consistent bass performance.
Delivering 2000 W continuous / 4000 W peak power, WLA-218BA uses two custom 18″ LF drivers with 4.0″ voice coils to produce deep, authoritative low end with exceptional headroom. Its rugged 18 mm birch plywood construction provides the rigidity required for high-SPL performance without unwanted resonance.
With a huge 148 dB max SPL @ 1 m, this subwoofer supplies the low-frequency impact needed for large-scale systems, perfectly matching the output capability of the WLA-210A array elements. Onboard DSP includes 8 selectable presets, offering quick access to tunings optimised for flown, ground-stacked, or mixed configurations.
WLA-218BA integrates seamlessly into WLA-210A system designs, delivering the power, precision, and reliability demanded in modern professional sound reinforcement.
OVERVIEW
| Specification | WLA-210A | WLA-210SUBA | WLA-218BA |
|---|---|---|---|
| Catch Line | Dual 10" active line array element with EVO-Fold | Dual 15″ active subwoofer with internal DSP and presets | Dual 18″ active subwoofer with internal DSP and presets |
| Active or Passive | Active | Active | Active |
| System Type | Array Element | Subwoofer | Subwoofer |
| Configuration | 2-way | Bass-reflex | Bass-reflex |
| System Continuous Power | LF: 700 W / HF: 100 W | 2000 W | 2000 W |
| System Peak Power | LF: 1400 W / HF: 200 W | 4000 W | 4000 W |
| Max SPL @ 1m | 133 dB | 145 dB | 148 dB |
| Freq Response (+/-3 dB) | 55 Hz – 20 KHz | 39 Hz-125 Hz | 30 Hz-100 Hz |
| Freq Range (-10 dB) | 50 Hz – 20 KHz | 35 Hz - 163 KHz | 25 Hz - 150 Hz |
| Driver Brand | Wharfedale Pro | Wharfedale Pro | Wharfedale Pro |
| LF Driver Size | 2 x 10" | 2 x 15" | 2 x 18" |
| LF Magnet Material | Ferrite | Ferrite | Ferrite |
| LF Frame Material | Aluminium | Aluminium | Aluminium |
| LF Voice Coil Size | 2.5” | 4″ | 4″ |
| HF Driver Type | Compression Driver | ||
| HF Voice Coil Size | 3” | ||
| HF Diaphragm Material | Titanium | ||
| HF Exit Size | 1.4″ | ||
| HF Power (RE:AES2-2012) | 90 W | ||
| HF Rated Impedance | 8 Ω | ||
| Input Connector | Balanced Socket XLR | Balanced Socket XLR | Balanced Socket XLR |
| Waveguide Type | EVO-Fold | ||
| Enclosure Material | Birch Plywood | Birch Plywood | Birch Plywood |
| Grille Material and Finish | Steel | Steel | Steel |
| Finish | Black Tough-Tone | Black Tough-Tone | Black Tough-Tone |
| Handles | 4 | 2 | 4 |
| Deployment | Flying, Ground | Flying, Ground | Ground |
| Brackets Included | Yes | Yes | Yes |
| Rigging | Yes | Yes | |
| Integral Rigging | 3 Points | ||
| Nominal Coverage (H x V) | 100° x System dependant | ||
| Amplifier design | Class D | Class D | Class D |
| Driver Protection | Independent LF/ HF RMS, Peak Limiters and DC | RMS, Peak Limiters and DC | RMS, Peak Limiters and DC |
| Thermal Protection | Amplifier Shut Down. Auto Reset | Amplifier Shut Down. Auto Reset | Amplifier Shut Down. Auto Reset |
| DC and Short Protection | Yes | Yes | Yes |
| Signal Processing | DSP Based, 8 FIR Presets | DSP Based, 8 FIR Presets | DSP Based, 8 FIR Presets |
| Power On Protection | Power switch on/off mute | Power switch on/off mute | Power switch on/off mute |
| Low Line Voltage Shut Down | 60% Nominal Line Voltage | 60% Nominal Line Voltage | 60% Nominal Line Voltage |
| Limiter Indicator | Red LED | Red LED | Red LED |
| Signal Indicator | Green LED | Green LED | Green LED |
| Power/Active Indicator | White LED | White LED | White LED |
| Find Function Indicator | Blue LED | Blue LED | Blue LED |
| Active loudspeaker Input Impedance | Balanced: 10 KΩ | Balanced: 10 KΩ | Balanced: 10 KΩ |
| Link Connector | Balanced Pin XLR | Balanced Pin XLR | Balanced Pin XLR |
| Input sensitivity | +4 dBu | +4 dBu | +4 dBu |
| Max Input Level | +18 dBu | +18 dBu | +18 dBu |
| Update | USB Type B | USB Type B | USB Type B |
| Network (RS485) | RJ45 | RJ45 | RJ45 |
| AC Input Connector | powerCON | powerCON | powerCON |
| AC Loop Through Connector | powerCON | powerCON | powerCON |
| Sensitivity 2.83 V / 1 m | 101 dB | 108 dB | 109 dB |
| Crossover Frequency | 1.5 KHz | Preset Dependent | Preset Dependent |
| Main Power | AC 100-120 V~ and 220-240 V~, 50/60 Hz Automatic | AC 100-120 V~ and 220-240 V~, 50/60 Hz Automatic | AC 100-120 V~ and 220-240 V~, 50/60 Hz Automatic |
| Power Supply | High Efficiency Switching Mode Power Supply | High Efficiency Switching Mode Power Supply | High Efficiency Switching Mode Power Supply |
| Included Accessory | User Manual, WLA-RH4 Rain hood | User Manual, WLA-RH2 Rain hood | User Manual |
| Unpacked - Front Height (mm) | 314 | 485 | 560 |
| Unpacked - Rear Height (mm) | 190 | 485 | 560 |
| Unpacked - Width Front (mm) | 760 | 760 | 1065 |
| Unpacked - Width Rear (mm) | 760 | 760 | 1065 |
| Unpacked - Depth (mm) | 503 | 775 | 756 |
| Packed - Height (mm) | 870 | 595 | 655 |
| Packed - Width Front (mm) | 410 | 855 | 840 |
| Packed - Width Rear (mm) | 410 | 855 | 840 |
| Packed - Depth (mm) | 600 | 870 | 1150 |
| Weight - Nett (kg) | 40.44 | 68.62 | 86.8 |
| Weight - Gross (kg) | 44.32 | 85.52 | 87.7 |
