Active Subwoofer
Wharfedale Pro WLA-218BA-BK is a dual 18-inch active subwoofer designed to deliver high-output low-frequency reinforcement for WLA-210A active line array systems. With 2000W continuous Class D amplification, DSP-based processing, 8 FIR presets, and rugged birch plywood construction, it provides deep bass impact for touring, production, and fixed installation applications.
Wharfedale Pro WLA-218BA-BK Competitive Differences
- Dual 18-inch active bass-reflex subwoofer with 2000W continuous and 4000W peak power
- 148dB max SPL in half space for large-scale low-frequency reinforcement
- DSP-based processing with 8 FIR presets for optimized system tuning
- Designed to integrate with WLA-210A active line array systems
- 18 mm birch plywood enclosure with black Tough-Tone finish for demanding professional use
Wharfedale Pro WLA-218BA-BK Description
The Wharfedale Pro WLA-218BA-BK is built to provide the low-frequency foundation for high-output WLA-210A system designs. Its bass-reflex enclosure uses two custom 18-inch Wharfedale Pro ferrite LF drivers with aluminum frames and 4-inch voice coils, producing deep, authoritative bass with strong headroom and controlled response.
Internal Class D amplification delivers 2000W continuous power and 4000W peak power, giving the subwoofer the output needed for demanding live sound, DJ, touring, venue, and installation applications. With a maximum SPL of 148dB at 1 meter in half space, the WLA-218BA-BK is designed for large-scale systems that require substantial low-frequency impact.
Onboard DSP provides 8 FIR presets, allowing fast access to tunings for different system configurations. Preset-dependent crossover operation supports integration with WLA-210A array elements, helping system designers and engineers achieve consistent bass performance across ground-stacked and mixed deployments.
The enclosure is constructed from birch plywood and finished in black Tough-Tone for durability in professional environments. A steel grille protects the drivers, while four handles help with transport, positioning, and production use where rugged handling is required.
WLA-218BA-BK Features
- Dual 18-inch active subwoofer
- Bass-reflex enclosure configuration
- Designed for WLA-210A active line array system integration
- 2000W continuous power output
- 4000W peak power output
- 148dB max SPL measured in half space
- Internal Class D amplifier design
- DSP-based processing with 8 FIR presets
- Two Wharfedale Pro 18-inch ferrite LF drivers
- 4-inch LF voice coils
- Balanced XLR input connector
- Balanced XLR link connector
- RJ45 RS485 network connection
- USB Type B update port
- powerCON AC input and loop-through connectors
- Birch plywood enclosure construction
- Steel grille for driver protection
- Black Tough-Tone finish
- Four handles for transport and placement
- Ground deployment design
- RMS, peak limiter, and DC driver protection
- Thermal shutdown protection with auto reset
- Power switch on/off mute protection
WLA-218BA-BK Specifications
- Active or Passive: Active
- System Type: Subwoofer
- Configuration: Bass-reflex
- System Continuous Power: 2000W
- System Peak Power: 4000W
- Max SPL: 148dB @ 1m, half space
- Frequency Response: 30Hz - 100Hz +/-3dB
- Frequency Range: 25Hz - 150Hz -10dB
- LF Driver Size: 2 x 18 in
- LF Magnet Material: Ferrite
- LF Frame Material: Aluminium
- LF Voice Coil Size: 4 in
- Input Connector: Balanced XLR socket
- Link Connector: Balanced XLR
- Input Sensitivity: +4dBu
- Max Input Level: +18dBu
- Active Loudspeaker Input Impedance: Balanced 10k ohms
- Sensitivity: 109dB, 2.83V / 1m
- Crossover Frequency: Preset dependent
- Amplifier Design: Class D
- Signal Processing: DSP based, 8 FIR presets
- Driver Protection: RMS, peak limiters, and DC protection
- Thermal Protection: Amplifier shutdown with auto reset
- DC and Short Protection: Yes
- Power On Protection: Power switch on/off mute
- Low Line Voltage Shutdown: 60% nominal line voltage
- Limiter Indicator: Red LED
- Signal Indicator: Green LED
- Power/Active Indicator: White LED
- Find Function Indicator: Blue LED
- Update Connector: USB Type B
- Network Connector: RJ45, RS485
- AC Input Connector: powerCON
- AC Loop Through Connector: powerCON
- Main Power: AC 100-120V and 220-240V, 50/60Hz automatic
- Power Supply: High-efficiency switching mode power supply
- 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
- Bluetooth: No
- IP Certification: None
- Unpacked Front Height: 22.05 in (560 mm)
- Unpacked Rear Height: 22.05 in (560 mm)
- Unpacked Width Front: 41.93 in (1065 mm)
- Unpacked Width Rear: 41.93 in (1065 mm)
- Unpacked Depth: 29.76 in (756 mm)
- Packed Height: 25.79 in (655 mm)
- Packed Width Front: 33.07 in (840 mm)
- Packed Width Rear: 33.07 in (840 mm)
- Packed Depth: 45.28 in (1150 mm)
- Net Weight: 191.4 lb (86.8 kg)
- Gross Weight: 193.3 lb (87.7 kg)
What's In The Box
- Wharfedale Pro WLA-218BA-BK active subwoofer
- User manual
Wharfedale Pro WLA-218BA-BK
(Wharfedale Pro WD-WLA-218BA-BK)
