Wharfedale Pro WLA-1 WLA-121SUB 21-Inch Passive Bass-Reflex Subwoofer
Wharfedale Pro | SKU: WHRF-WDWLA121SUB
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Orders placed between Monday - Friday before
1:00 PM PST will most likely ship out the same day. We work hard to process and ship your items quickly so you can start enjoying them as soon as possible.
Found a lower price? Contact us and we'll see if we can match it! Price match will only be applied to products sold and shipped by authorized retailers of the brand.
No restocking fee will be charged when you opt for store credit. Exclusions apply.
Description
WLA-121SUB 21" Touring & Installation Subwoofer for Powerful Low-Frequency Output
The WLA-121SUB is a 21" passive subwoofer designed to deliver extreme low-frequency power with precise control for large-scale touring and installation environments. Built as part of the WLA-1 System, it provides tight, impactful bass that stays articulate even at high output levels.
At the core is a 21" Beyma low-frequency driver with a 4.0" Quattro LF voice coil, engineered for stability and thermal efficiency under demanding conditions. With up to 141 dB max SPL (half space) and deep extension down to 18 Hz (-10 dB), the WLA-121SUB is built to anchor a commanding full-range system in venues where low-end authority matters.
Key Features
- 21" Beyma Driver With 4.0" Voice Coil: Delivers immense output with stability and thermal efficiency for demanding touring and fixed-install use.
- High Power Handling: Rated at 1600 W continuous, 3200 W programme, and up to 6400 W peak for impactful low-frequency performance.
- Deep, Controlled Low End: Frequency range down to 18 Hz (-10 dB) with a focused response for tight, articulate bass.
- Flexible Deployment Options: Designed for flown configurations or ground-stacked setups alongside WLA-1 full-range elements.
- Tour-Ready Cabinet Construction: Birch plywood enclosure with a powder-coated perforated steel grille and black Tough-Tone finish.
- Rigging-Ready Design: Integral rigging with 3 points plus M20 pole mount support for adaptable system builds.
Technical Specifications
- Active or Passive: Passive
- System Type: Subwoofer
- Configuration: Bass-reflex
- System Continuous Power: 1600 W
- System Programme Power: 3200 W
- System Peak Power: 6400 W
- Max SPL @ 1 m: 141 dB (Half Space)
- Frequency Range (-10 dB): 18 Hz – 125 Hz
- Frequency Response (+/-3 dB): 25 Hz – 100 Hz
- Sensitivity (2.83 V / 1 m): 103 dB
- System Rated Impedance: 4 Ω
- Driver Brand: Beyma
- LF Driver Size: 21"
- LF Magnet Material: Ferrite
- LF Frame Material: Aluminium
- LF Voice Coil Size: 4"
- Preset: Yes
- Crossover Frequency: Preset Dependent
- Recommended HPF: 20 Hz (BW 18 dB/OCT.)
- Input Connector: 2 x 4 Pole Speaker Connector
- Cabinet Type: Rectangle
- Enclosure Material: Birch Plywood
- Grille Material & Finish: Powder Coated Perforated Steel
- Finish: Black Tough-Tone
- Handles: 2 side (4 pcs) + 2 (top/bottom)
- Deployment: Flying, Ground
- Rigging: Yes
- Integral Rigging: 3 Points
- Pole Mount: M20
- Unpacked Dimensions (H x W x D): 32.28 x 22.28 x 29.92 in
- Packed Dimensions (H x W x D): 35.24 x 25.83 x 33.46 in
- IP Certification: None
What's Included
- User Manual: Included accessory documentation for setup and operation
