Presonus Eris Studio 4

Designed for superior performance in both home studios and small professional mix rooms, the Eris Studio 4 combines flexible connectivity with sonic accuracy that puts it a class all its own.

The custom-designed EBM (Elliptical Boundary Modeled) waveguide provides superior high-frequency response that allows you to hear the finest details in your mix, while a wide 120-degree horizontal dispersion creates a broad sweet spot with lifelike stereo imaging. Narrow vertical dispersion reduces reflections from your desk, and a silk-dome tweeter ensures snappy, accurate transient reproduction.

The 4.5-inch, woven-composite, low-frequency driver produces tight, clear bass with plenty of punch that defies the Eris Studio 4's space-saving size. The ported enclosure and 50W of biamped power combine to maximize bass response and allow the Eris Studio 4 to reach down to an astonishing 55 Hz - without a subwoofer!

Flexible input options let you connect almost any line-level source, from mixers to audio interfaces and more. You'll have no problem hooking Eris speakers up to virtually anything.

• 4.5-inch, woven-composite, low-frequency transducer
• 1-inch (25 mm), ultra-low-mass, silk-dome, high-frequency transducer
• 120˚(H) x 60˚(V) EBM waveguide for wide sweet spot
• Front-firing acoustic port for superior bass-frequency reproduction and optimized, resonance-suppressing internal bracing
• 50W, Class AB biamplification
• 55 Hz to 20 kHz frequency response
• 100 dB SPL (Peak, @ 1 meter)
• Acoustic Tuning controls: HF (±6 dB, continuously variable); Midrange (±6 dB, continuously variable), and Acoustic Space (flat, -2, -4 dB), plus highpass filter (Off, 80 Hz, 100 Hz)
• RF interference, output-current limiting, over-temperature, transient, subsonic protection and amplifier "soft start" feature (eliminates popping on power-up)
• Internal power supply with IEC connector and power switch with on/off LED