Wharfedale Pro WLA-15B BK | 15in - 133dB | Flyable Passive Subwoofer

$1,189.00

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Passive Flyable Subwoofer

Wharfedale Pro WLA-15B BK is a compact 15-inch passive subwoofer designed for WLA-28X line array systems. With high power handling, integrated rigging hardware, and durable birch plywood construction, it delivers impactful low-frequency reinforcement for touring and installed sound applications.

Wharfedale Pro WLA-15B BK Competitive Differences

15-inch flyable passive subwoofer with 133 dB max SPL
700W AES continuous power handling with 2800W peak capacity
Integrated rigging system for flying or ground stack deployment
Birch plywood enclosure with Black Tough-Tone finish

Wharfedale Pro WLA-15B BK Description

The Wharfedale Pro WLA-15B BK is engineered to provide deep, controlled bass performance in compact WLA-28X system configurations. Its custom 15-inch low-frequency driver features a robust 4-inch voice coil and ferrite magnet structure, delivering powerful output and reliable operation in demanding live sound environments.

With 700W AES continuous power handling, 1400W programme power, and 2800W peak capability, the WLA-15B BK offers the output required for medium to large array systems. The subwoofer reaches a maximum SPL of 133 dB at 1 meter in half-space conditions while maintaining low-frequency extension down to 35 Hz.

The enclosure is constructed from durable 15 mm and 18 mm birch plywood with a black Tough-Tone finish and black steel grille for touring durability. Integrated 3-point rigging allows the subwoofer to be flown alongside WLA-28X elements or used as a ground stack foundation when paired with compatible fly frame hardware.

WLA-15B BK Features

15-inch passive flyable subwoofer
Bass-reflex enclosure configuration
700W AES continuous power handling
1400W programme power handling
2800W peak power handling
133 dB max SPL at 1 m half-space
15-inch LF driver with 4-inch voice coil
Ferrite LF magnet structure
Aluminium LF frame
35 Hz - 1.3 kHz frequency range
2 x 4-pole speaker connectors
Birch plywood enclosure construction
Black Tough-Tone finish
Black steel grille
Integrated 3-point rigging system
Suitable for flying or ground deployment
Includes mounting brackets
Integrated carry handles

WLA-15B BK Specifications

Active or Passive: Passive
System Type: Subwoofer
Configuration: Bass-reflex
System Continuous Power: 700 W
System Programme Power: 1400 W
System Peak Power: 2800 W
Max SPL at 1 m: 133 dB half-space
Frequency Response (+/-3 dB): 40 Hz - 1.5 kHz
Frequency Range (-10 dB): 35 Hz - 1.3 kHz
System Rated Impedance: 8 ohms
Sensitivity: 99 dB at 2.83 V / 1 m
LF Driver Size: 15 in.
LF Magnet Material: Ferrite
LF Frame Material: Aluminium
LF Voice Coil Size: 4 in.
LF Rated Impedance: 8 ohms
LF Power: 700 W RE:AES2-2012
Input Connector: 2 x 4-pole speaker connector
Enclosure Material: Birch plywood
Grille Material and Finish: Steel black
Finish: Black Tough-Tone
Handles: 2
Deployment: Flying, ground
Pole Mount: None
Brackets Included: Yes
Rigging: Yes
Integral Rigging: 3 points
Crossover Frequency: Preset dependent
Recommended HPF: 35 Hz BW 18 dB/oct.
Bluetooth: No
IP Certification: None
Transformer: No
Unpacked Dimensions: 485 x 760 x 440 mm / 19.1 x 29.9 x 17.3 in.
Packed Dimensions: 545 x 580 x 860 mm / 21.5 x 22.8 x 33.9 in.
Net Weight: 38.5 kg / 84.9 lb
Gross Weight: 46.5 kg / 102.5 lb

What's In The Box

WLA-15B BK subwoofer
User manual

Shipping

Orders ship from our northern NJ warehouse the same day if ordered by 3:30PM EST. Transit time ETA's are listed in the image below:

Return Policies

All orders come with our industry leading 90-Day return policy.

Cash Back or Store Credit available for returns within 30 days.
Store Credit available for returns within 31-90 days.

Restocking fees

Unopened Items: 5%
Opened but Mint Condition: 15%
Blemished, Missing/Damaged Packing or Accessories: 25%

Shipping Costs

Buyer is responsible for return shipping costs
If "Free" or discount shipping was provided with original order, our actual shipping cost will be deducted from the amount refunded/credited

Damages & Defects

We will swap any item reported as damaged or defective within 7 days of delivery for free. All transportation and replacement costs will be covered by us (within US48 states).