The Presonus Eris E4.5 Active Studio Monitors provide you with a high quality professional sounding set of monitors at a great price making them the perfect solution for any aspiring producer or established professionals looking for a quality upgrade. The front facing controls and headphone jack make these monitors an ideal upgrade for anyone looking for accessible and simple music listening. Plus unlike most other similarly priced monitors Eris E4.5 has controls for simulating different listening environments and flattening frequency response to enable more accurate mixing.