The PK115A combines the high level performance of the PK115 (passive) and the superb power and reliability of a highly efficient 800W Class D/AB amplifier with switching power. The PK115A one the more versatile portable pole mounted loudspeaker in the market for general purpose sound reinforcement, live sound, music playback and speech. The amplifier features an 8 Ohm Speakon Bi-amp parallel output connector that allows for the connection of an additional PK115 (passive) speaker. Additional features include, a built in EQ with Vocal, Flat and Contour (selectable), 75Hz high pass filter switch, Line/Mic switch and main volume control.