The Presonus Eris E3.5 employs the same technology as the larger models to deliver studio-quality sound, with a smooth and accurate frequency response. Yet they’re compact enough to fit almost anywhere. Every Eris -series studio monitor uses a woven composite, low-frequency driver. The weave and nature of the E-3.5's 3.5-inch woofer result in a more constant dispersion pattern throughout the frequency range, resulting in less time-smeared audio and cleaner overall sound. The Eris-3.5 Near field studio Monitor is equipped with a one-inch silk-dome tweeter that produces a smooth and refined sound, accurately reproducing transients and high frequencies.