Presonus Eris E5 2-Way Active Studio Monitors: Accuracy DefinedYour ears will thank you. Whether you're upgrading your computer listening experience or getting ready to make some music of your very own, the Eris E5 studio monitors are designed to deliver a smooth and accurate frequency response. Equipped with 80W of powerful Class AB bi amplification, flexible connectivity, and a robust suite of acoustic tuning controls to mitigate room anomalies, Eris E5 speakers deliver superior sound in a stylish design. Size