PreSonus Expands Eris Active Studio Monitor Family with Eris E7 XT

Offering accurate frequency response and powerful amplification, the original Eris-series studio monitors have been a successful product for PreSonus. Now, a new intermediate model Eris E7 XT offers big, controlled bass in a compact form that will fit into a studio of nearly any size, featuring the same Elliptical Boundary Modeled (EBM) waveguide design by Hugh Sarvis of WorxAudio, and using silk-dome tweeters and 7-inch woofers in a ported enclosure, providing a wider 100-degree horizontal dispersion.

Suitable for both home recording studios and professional environments, PreSonus' Eris studio monitors are very affordable options with respectable specifications. Now, the company introduced two new Eris XT models with improved features, new drivers, a larger ported enclosure, and a new Elliptical Boundary Modeled (EBM) waveguide design, the work of Hugh Sarvis (WorxAudio). The Eris XT monitors are a substantial update, offering superior high-frequency response and wider 100-degree horizontal dispersion to create a broader sweet spot.

Mike Klasco explains the evolution of speaker cone materials, from paper to the first experiments in plastics and finally to Polypropylene (PP), which became the preferred resin sheet material for thermoformed speaker cones. The article also discusses recent trends in woven composite cone fabrication. This article was published in Voice Coil, February 2014.