| Specification | Value |
|---|---|
| Active or Passive | Active |
| System Type | Subwoofer |
| Configuration | Bass-reflex |
| System Continuous Power | 2200 W |
| System Peak Power | 4400 W |
| Max SPL @ 1m | 136 dB (Half Space) |
| Freq Response (+/-3 dB) | 25 Hz – 100 Hz |
| Freq Range (-10 dB) | 18 Hz – 125 Hz |
| Bi-amp Mode Switch | No |
| Bluetooth | No |
| IP Certification | None |
| Driver Brand | Beyma |
| LF Driver Size | 21" |
| LF Magnet Material | Ferrite |
| LF Frame Material | Aluminium |
| LF Voice Coil Size | 4" |
| Preset Library | No |
| Input Connector | Balanced Socket XLR |
| Cabinet Type | Rectangle |
| Enclosure Material | Birch Plywood |
| Grille Material and Finish | Powder Coated Perforated Steel |
| Finish | Black Tough-Tone |
| Handles | 2 side (4 pcs) + 2 (top/bottom) |
| Deployment | Flying, Ground |
| Pole Mount | M20 |
| Rigging | Yes |
| Integral Rigging | 3 Points |
| Sensitivity 2.83 V / 1 m | 103 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 |
| Clip Limiter | Yes |
| Signal Processing | DSP Based, 8 FIR Presets |
| 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 Socket XLR |
| Input sensitivity | +4 dBu |
| Max input level | +18 dBu |
| Update | USB Type B |
| Network (RS485) | RJ45 |
| Main Power | AC 100-120 V~ and 220-240 V~, 50/60 Hz Automatic |
| Power Supply | High Efficiency Dual Switching Mode Power Supply |
| Included Accessory | User Manual, WLA-RH1 Rain hood, WLA-121SUB ARM |
| Unpacked - Front Height (mm) | 820 |
| Unpacked - Rear Height (mm) | 820 |
| Unpacked - Width Front (mm) | 566 |
| Unpacked - Width Rear (mm) | 566 |
| Unpacked - Depth (mm) | 760 |
| Packed - Height (mm) | 850 |
| Packed - Width Front (mm) | 656 |
| Packed - Width Rear (mm) | 656 |
| Packed - Depth (mm) | 895 |
| Weight - Nett (kg) | 74 |
| Weight - Gross (kg) | 80 |
WLA-121SUBA
21" active flyable subwoofer
WLA-121SUBA
21" active flyable subwoofer
WLA-121SUBA is a 21″ active subwoofer from our WLA-1A System, built to deliver extreme low-frequency power with precision and control for large-scale touring and installation environments.
Powered by internal Class-D amplification and DSP, and, at its core, a 21″ Beyma driver with a 4.0″ Quattro voice coil delivers immense output with exceptional stability and efficiency.
Handling 2200 W continuous (up to 4400 W peak) and delivering a maximum SPL of 136 dB @ 1 m, WLA-121SUBA produces tight, controlled low-end that stays articulate even at the highest levels. Designed for flexibility, it can be flown or ground-stacked alongside WLA-1A full-range elements — forming the foundation of a truly commanding system.
OVERVIEW
| Specification | WLA-112A | WLA-115A | WLA-118SUBA | WLA-121SUBA |
|---|---|---|---|---|
| Catch Line | 12" active coaxial hybrid curvature array element | 15" active coaxial hybrid curvature array element | 18" active flyable subwoofer | 21" active flyable subwoofer |
| Active or Passive | Active | Active | Active | Active |
| System Type | Array Element | Array Element | Subwoofer | Subwoofer |
| Configuration | Coaxial 2-way | Coaxial 2-way | Bass-reflex | Bass-reflex |
| System Continuous Power | 680 W | 830 W | 2200 W | 2200 W |
| System Peak Power | 1360 W | 1660 W | 4400 W | 4400 W |
| Max SPL @ 1m | 133 dB | 135 dB | 136 dB | 136 dB |
| Freq Response (+/-3 dB) | 55 Hz – 20 KHz | 42 Hz – 20 KHz | 35 Hz – 125 Hz | 25 Hz – 100 Hz |
| Freq Range (-10 dB) | 35 Hz – 25 KHz | 25 Hz – 25 KHz | 28 Hz – 160 Hz | 18 Hz – 125 Hz |
| Driver Brand | Beyma | Beyma | Beyma | Beyma |
| LF Driver Size | 12" | 15" | 18" | 21" |
| LF Magnet Material | Ferrite | Ferrite | Ferrite | Ferrite |
| LF Frame Material | Aluminium | Aluminium | Aluminium | Aluminium |
| LF Voice Coil Size | 4" | 4" | 4" | 4" |
| HF Driver Type | Compression Driver | Compression Driver | ||
| HF Voice Coil Size | 2.87" | 2.87" | ||
| HF Diaphragm Material | Composite Titanium / Polyester | Composite Titanium / Polyester | ||
| HF Exit Size | 1.5″ | 1.5″ | ||
| HF Power (RE:AES2-2012) | 80 W | 80 W | ||
| HF Rated Impedance | 16 Ω | 16 Ω | ||
| Vertical Splay Angle Range | 0°- 5° – 10° – 15° | 0°- 5° – 10° – 15° | ||
| Horizontal Splay Angle | 15° | 15° | ||
| Input Connector | Balanced Socket XLR | Balanced Socket XLR | Balanced Socket XLR | Balanced Socket XLR |
| Waveguide Type | EVO-Fold | EVO-Fold | ||
| Cabinet Type | Trapezoid | Trapezoid | Rectangle | Rectangle |
| Enclosure Material | Birch Plywood | Birch Plywood | Birch Plywood | Birch Plywood |
| Grille Material and Finish | Powder Coated Perforated Steel | Powder Coated Perforated Steel | Powder Coated Perforated Steel | Powder Coated Perforated Steel |
| Finish | Black Tough-Tone | Black Tough-Tone | Black Tough-Tone | Black Tough-Tone |
| Handles | 2 side / 2 back | 2 side / 2 back | 1 side（2 pcs) | 2 side (4 pcs) + 2 (top/bottom) |
| Deployment | Flying, Ground, Pole | Flying, Ground, Pole | Flying, Ground | Flying, Ground |
| Pole Mount | 35 mm Dual Angle -2.5° / +7.5° | 35 mm Dual Angle -2.5° / +7.5° | M20 | M20 |
| Brackets Included | Yes | Yes | ||
| Rigging | Yes | Yes | Yes | Yes |
| Integral Rigging | 3 Points | 3 Points | 3 Points | 3 Points |
| Nominal Coverage (H x V) | 100° x System dependant | 100° x System dependant | ||
| Amplifier design | Class D | Class D | Class D | Class D |
| Driver Protection | Independent LF/ HF RMS and Peak Limiters | Independent LF/ HF RMS and Peak Limiters | 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 | Amplifier Shut Down. Auto Reset |
| DC and Short Protection | Yes | Yes | Yes | Yes |
| Clip Limiter | Yes | Yes | Yes | Yes |
| Signal Processing | DSP Based, 8 FIR Presets | DSP Based, 8 FIR Presets | DSP Based, 8 FIR Presets | DSP Based, 8 FIR Presets |
| Low Line Voltage Shut Down | 60% Nominal Line Voltage | 60% Nominal Line Voltage | 60% Nominal Line Voltage | 60% Nominal Line Voltage |
| Limiter Indicator | Red LED | Red LED | Red LED | Red LED |
| Signal Indicator | Green LED | Green LED | Green LED | Green LED |
| Power/Active Indicator | White LED | White LED | White LED | White LED |
| Find Function Indicator | Blue LED | Blue LED | Blue LED | Blue LED |
| Active loudspeaker Input Impedance | Balanced: 10 KΩ | Balanced: 10 KΩ | Balanced: 10 KΩ | Balanced: 10 KΩ |
| Link Connector | Balanced Socket XLR | Balanced Socket XLR | Balanced Socket XLR | Balanced Socket XLR |
| Input sensitivity | +4 dBu | +4 dBu | +4 dBu | +4 dBu |
| Max Input Level | +18 dBu | +18 dBu | +18 dBu | +18 dBu |
| Update | USB Type B | USB Type B | USB Type B | USB Type B |
| Network (RS485) | RJ45 | RJ45 | RJ45 | RJ45 |
| Sensitivity 2.83 V / 1 m | 101 dB | 102 dB | 103 dB | 103 dB |
| Crossover Frequency | 1.2 kHz | 1.2 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 | AC 100-120 V~ and 220-240 V~, 50/60 Hz Automatic |
| Power Supply | High Efficiency Dual Switching Mode Power Supply | High Efficiency Dual Switching Mode Power Supply | High Efficiency Dual Switching Mode Power Supply | High Efficiency Dual Switching Mode Power Supply |
| Included Accessory | User Manual, WLA-RH3 Rain hood | User Manual, WLA-RH3 Rain hood | User Manual, WLA-RH5 Rain hood | User Manual, WLA-RH1 Rain hood, WLA-121SUB ARM |
| Unpacked - Front Height (mm) | 332 | 408 | 535 | 820 |
| Unpacked - Rear Height (mm) | 246 | 302 | 535 | 820 |
| Unpacked - Width Front (mm) | 566 | 566 | 566 | 566 |
| Unpacked - Width Rear (mm) | 566 | 566 | 566 | 566 |
| Unpacked - Depth (mm) | 465 | 543 | 760 | 760 |
| Packed - Height (mm) | 410 | 490 | 850 | 850 |
| Packed - Width Front (mm) | 550 | 630 | 656 | 656 |
| Packed - Width Rear (mm) | 550 | 630 | 656 | 656 |
| Packed - Depth (mm) | 661 | 661 | 630 | 895 |
| Weight - Nett (kg) | 30.4 | 35.5 | 59.8 | 74 |
| Weight - Gross (kg) | 32.8 | 38.5 | 68 | 80 |
