A unique sub-woofer filter network extracts and combines low frequencies from the front, surround and center channels to drive the sub-woofer/vibrator speakers in each ear cup. This results in deep bass response from any type of input signal (music, games, movies, etc.) regardless of whether or not the source has a sub-woofer signal.
Since game audio does not have a pre-encoded subwoofer track, the bass from explosions, gunfire, etc.. is often played through the front, center, or surround speakers, instead of being directed to the subwoofer. The HPA2 “bass enhancement mixing system” overcomes this limitation by processing low frequency signals from all inputs rather than just the sub-woofer input, delivering explosive bass during dramatic episodes in the game. The depth of bass boost can be adjusted with the HPA2 amplifier’s sub-woofer volume control.