PreSonus Eris-series studio monitors are used worldwide by audio engineers who need to hear every detail of their recordings. Ideal for gaming and home video production, the Eris E3.5 employs the same technology as the larger Eris models to deliver studio-quality sound, with a smooth and accurate frequency response. Yet they're compact enough to fit almost anywhere. Kevlar woofers deliver a cleaner overall sound. Every Eris-series studio monitor utilizes a custom-woven Kevlar low-frequency driver. The weave and nature of the Eris E3.5's 3.5-inch Kevlar woofer result in a more constant dispersion pattern throughout the frequency range, resulting in less time-smeared audio and cleaner overall sound. Smooth high end and wide sweet spot.