When you’re serious about creating music, you need monitor speakers that will reveal all of the flaws in your tracks and mixes. Eris professional studio monitors deliver the truth, thanks to very accurate response, tight bass and clear upper end. Cheap computer speakers and home-stereo speakers are designed to make music sound good and hide the flaws, while most low-cost studio monitors are hyped to sound good in the store showroom. If you mix on those speakers, you won’t hear problems that can show up in your final production. Not so with PreSonus Eris-series active studio monitors. Thanks to well-designed Kevlar® low frequency transducers, low-mass silk-dome tweeters, responsive Class AB amplification and professional acoustic-adjustment controls, Eris delivers the goods. As you expect from PreSonus, they use quality components, are well constructed and deliver professional audio quality. They’re lightweight and compact and look as professional as they sound. But what really sets them apart from comparably priced systems are pro features such as user controls that allow you to tailor the speakers’ response to your needs. Yet Eris-series speakers are ultra-affordable, making them a terrific value. And with three models, you can easily find the Eris monitor that best suits your studio needs.  Features   Components and construction 4.5-inch woven composite low-frequency transducer 1-inch (25 mm), ultra-low-mass, silk-dome, high-frequency transducer Front-firing acoustic port for superior bass-frequency reproduction Optimized, resonance-suppressing internal bracing 100 dB maximum continuous SPL User controls HF Driver Adjust (±6 dB, continuously variable) Midrange Driver Adjust (±6 dB, continuously variable) Acoustic Space settings (flat, -2, -4 dB) for accurate mixing contour Highpass filter (Off, 80 Hz, 100 Hz) Power and safety 50 watt, Class AB biamplification RF interference, output current limiting, over-temperature, transient, and subsonic protection Amplifier “soft start” feature eliminates popping on power-up Internal power supply with IEC connector Power switch with on/off LED Inputs and outputs Balanced ¼-inch TRS Unbalanced 1/8-inch TS RCA inputs 1/8-inch stereo headphone output  Specifications   Inputs1- Stereo 1/82- Balanced ¼” TRS2- Unbalanced RCA PerformanceFrequency Response: 70 Hz - 20 kHzCrossover Frequency: 2.8 kHzLF Amplifier Power: 25W/speakerHF Amplifier Power: (not biamped)Peak SPL (@ 1 meter): 100 dBLF Driver: 4.5HF Driver: 1” silk domeInput Impedance: 10 kO User ControlsVolume Range: A-type taperMF Control: Variable (-6 to +6 dB)HF Control: Variable (-6 to +6 dB)Low Cut: Flat, 80 Hz, 100 HzAcoustic Space: Flat, -2 dB, -4 dB ProtectionRF interferenceOutput-current limitingOver-temperatureTurn-on/off transientSubsonic filterExternal mains fuse Power100-120V ~50/60 Hz or 220-240V ~50/60 Hz CabinetVinyl-laminated, medium-density fiberboard PhysicalWidth: 6.42 (163 mm)Depth: 7.09 (180 mm)Height: 9.45 (241 mm)Weight: 13 lb. (5.9 kg)