CALIFORNIA WARNING: This product can expose you to chemicals, including lead and DEHP, which are known to the State of California to cause cancer and birth defects, or other reproductive harm. For more information, go to https://www.p65warnings.ca.gov.
PINBLASTER for Stern SAM - Integrated Acoustic Amplifier Board
PINBLASTER embeds an entirely new hardware audio platform, directly connected to the Stern SAM CPU, running with a high-grade I/O circuit for outstanding sound quality from the original audio source.
The integrated equalizer for custom audio shaping will get you the best of your pinball audio system, with original stock speakers or upgraded ones.
The subwoofer daisy chain feature supports the connection of multiple PINBLASTER boards to a single external subwoofer.
Reference:
PSD-BLASTER-SAM