QSC's PLD 4.2 Power Amplifier is a portable and versatile solution to your PA needs. With QSC's remarkable Flexible Amplifier Summing Technology, you can distribute power to up to four speakers. The QSC PLD 4.2 Power Amplifier is made to achieve matchless audio quality with its Class D amplifier engine. Its Preset Wizard feature also allows you to dial in and recall presets seamlessly with the user-friendly interface. With a rack-friendly 2U 18.5-pound form, the QSC PLD 4.2 Power Amplifier is an essential companion for your live sound rig.