This is the official Electro-Voice F.01U.317.470 ZLX-15P PCBA Amplifier SMPS HV ZLX. AXM.
The Electro-Voice SPA PCBA Amplifier ELX200-12/18SP v2 is a replacement amplifier module for ELX200 series subwoofers. Suitable for the ELX200-12SP and the ELX200-18SP.