The new Wilson Lōkē subwoofer (9000$) uses an off the shelf Dayton Audio plate amplifier (300$) : r/audiophile
Best Subwoofer Plate Amplifiers [2022]: CLASS D Models
Bash 300-750 Digital Subwoofer Plate Amplifier | Compra online en eBay
Order the Dayton Audio SPA250DSP plate amplifier - SoundImports
Módulo amplificador de Subwoofer de 2000W, placa de altavoz profesional, amplificador clase D con procesador de Audio DSP|subwoofer amplifier|amplifier moduleplate amplifier - AliExpress
Plate Amplifiers
AMPLIFICADOR DE PLACA DE Subwoofer Digital, placa amplificadora de 800W, RMS, Clase D, 1 entrada, 1 salida|amplifier board|digital subwooferamplifier class - AliExpress
Dsa Series Amplifier 350w 500w Class D Subwoofer Plate Amplifier Module For Subwoofer Speaker - Buy Subwoofer Plate Amplifier,Plate Amplifier,Amplifier Module Product on Alibaba.com
Dayton Audio - SPA250DSP 250W Subwoofer Plate Amplifier with DSP
Yung SD300 300W clase D amplificador de Subwoofer módulo no Boost | eBay
Final s110 Subwoofer + diy plate amp. 45€ total : r/BudgetAudiophile
Rythmik Audio • Subwoofer plate amplifiers
Plate Amplifiers for PA Speakers and Subwoofers | Seismic Audio
Subwoofer Plate Amplifiers
2 Channel GETSHOW 6000W Subwoofer Amplifier Module Professional Speaker Plate Amplifier Class D with DSP Audio Processor