Each full-range PreSonus® StudioLive™ AI-series loudspeaker employs the same biamped, CoActual™ speaker for high- and mid-frequency reproduction. However, each model handles the low-frequency reproduction differently:
The 312AI features a 12-inch ferrite woofer, powered by two 500W amplifiers bridged together.
The 315AI features a 15-inch ferrite woofer, powered by two bridged 500W amplifiers.
The 328AI features two 8-inch ferrite woofers, each powered by its own 500W amplifier.