PreSonus Eris E5 5.25" Active Studio Monitor - PreSonus and CCI Solutions sell the Eris 5 as Singles

The Eris E5 Two-Way Active 5.25" Studio Monitor from PreSonus® delivers an accurate response with tight bass and a clear upper end. The Kevlar low frequency transducers, low-mass silk-dome tweeters and responsive Class AB amplification combine with acoustic-adjustment controls to create a versatile and adaptable listening system. The E5 begins with a front-ported enclosure made of vinyl-laminated MDF. It features a 5.25" Kevlar low-frequency driver mated with a 45W, Class AB amplifier. For the highs, Eris employs a 1" silk-dome tweeter powered by a 35W, Class AB amplifier. The E5 outputs a clean 102 dB peak SPL. Its frequency response is rated at 64Hz to 22kHz. Features Components and Construction: 4.5-inch (E 4.5) / 5.25-inch (E5) / 8-inch (E8) Kevlar® 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 (E4.5) / 102 dB (E5) /105 dB (E8) 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 (E4.5) / 70 (E5) /130 watt (E8), 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 XLR/¼-inch and unbalanced RCA inputs (E5/E8) Balanced ¼-inch TRS and unbalanced 1/8-inch TS, RCA inputs (E4.5) 1/8-inch stereo headphone output (E4.5)