Wharfedale Pro WLA-28SUBA
(Wharfedale Pro WD-WLA-28SUBA)
Active Line Array Subwoofer
Wharfedale Pro WLA-28SUBA is a dual 15-inch active subwoofer designed to provide powerful low-frequency reinforcement for touring sound systems, installed venues, houses of worship, and event production. With internal Class D amplification, DSP-based processing, 8 FIR presets, and integrated rigging, it delivers high-output bass support for WLA-28A active line array deployments.
Wharfedale Pro WLA-28SUBA Competitive Differences
- Dual 15-inch active subwoofer with 2000W continuous and 4000W peak power
- 145dB max SPL in half space for high-impact low-frequency output
- DSP-based processing with 8 resident FIR presets for fast system optimization
- Ethernet control via RS485 with Pro=Link software for remote system management
- Birch plywood enclosure with integrated rigging for flown or ground-stacked deployment
Wharfedale Pro WLA-28SUBA Description
The Wharfedale Pro WLA-28SUBA is the dedicated low-frequency element for the WLA-28A active line array system. Its bass-reflex design uses two 15-inch Wharfedale Pro ferrite drivers with aluminum frames and 4-inch voice coils to deliver tight, extended bass for live music, DJs, production companies, and permanent sound installations.
Powered by a high-efficiency Class D amplifier, the WLA-28SUBA provides 2000W continuous power and 4000W peak power, giving the system the output and headroom needed for demanding venues and events. DSP-based processing with 8 FIR presets helps tailor performance to different configurations, while preset-dependent crossover control supports integration with other WLA-28A system elements.
The cabinet is built from 15 mm / 18 mm birch plywood with a black Tough-Tone finish and steel grille, making it suitable for rental, touring, and installed applications. The enclosure includes two handles and integral rigging, allowing the subwoofer to be flown or ground-stacked depending on the system design.
For control and connectivity, the Wharfedale Pro WLA-28SUBA includes an XLR 1/4-inch combo input, balanced XLR link output, USB Type B update port, RJ45 RS485 networking, powerCON AC input, and powerCON loop-through. RMS, peak limiter, DC, short-circuit, thermal, low-line voltage, and power-on mute protection help support reliable operation in professional environments.
WLA-28SUBA Features
- Dual 15-inch active subwoofer for the WLA-28A active line array system
- Bass-reflex enclosure design
- 2000W continuous power output
- 4000W peak power output
- 145dB max SPL measured in half space
- Internal Class D amplifier design
- DSP-based processing with 8 FIR presets resident in the input module
- Ethernet control via RS485 protocol
- Remote system control and tuning with Pro=Link software
- Dual 15-inch Wharfedale Pro ferrite LF drivers
- 4-inch LF voice coils
- Birch plywood enclosure with black Tough-Tone finish
- Steel grille for driver protection
- Integrated rigging for flown deployment
- Supports flying and ground deployment
- RMS, peak limiter, and DC driver protection
- Thermal shutdown protection with auto reset
- USB Type B update port
- RJ45 network connector for RS485 control
- powerCON AC input and loop-through connectors
WLA-28SUBA Specifications
- Active or Passive: Active
- System Type: Subwoofer
- Configuration: Bass-reflex
- System Continuous Power: 2000W
- System Peak Power: 4000W
- Max SPL: 145dB @ 1m, half space
- Frequency Response: 39Hz - 125Hz +/-3dB
- Frequency Range: 35Hz - 163kHz -10dB
- LF Driver Size: 2 x 15 in
- LF Magnet Material: Ferrite
- LF Frame Material: Aluminium
- LF Voice Coil Size: 4 in
- Input Connector: XLR 1/4 in Combo Jack
- Link Connector: Balanced XLR
- Input Sensitivity: +4dBu
- Max Input Level: +18dBu
- Active Loudspeaker Input Impedance: Balanced 10k ohms
- Sensitivity: 108dB, 2.83V / 1m
- Crossover Frequency: Preset dependent
- Amplifier Design: Class D
- Signal Processing: DSP based, 8 FIR presets resident in input module
- 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: 80% 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 100-240V, 50/60Hz
- Power Supply: High-efficiency switching mode power supply
- Enclosure Material: Birch plywood
- Grille Material and Finish: Steel
- Finish: Black Tough-Tone
- Handles: 2
- Deployment: Flying, ground
- Pole Mount: None
- Rigging: Yes
- Bluetooth: No
- IP Certification: None
- Unpacked Front Height: 19.09 in (485 mm)
- Unpacked Rear Height: 19.09 in (485 mm)
- Unpacked Width Front: 29.92 in (760 mm)
- Unpacked Width Rear: 29.92 in (760 mm)
- Unpacked Depth: 30.51 in (775 mm)
- Packed Height: 23.62 in (600 mm)
- Packed Width Front: 33.66 in (855 mm)
- Packed Width Rear: 33.66 in (855 mm)
- Packed Depth: 34.25 in (870 mm)
- Net Weight: 143.7 lb (65.2 kg)
- Gross Weight: 160.3 lb (72.7 kg)
What's In The Box
- Wharfedale Pro WLA-28SUBA active subwoofer
- User manual
- WLA-RH2 rain hood
