Audio engineers, producers, and musicians looking for a professional studio monitor with a wide stereo image and precision phase alignment will be impressed with the single PreSonus Eris Pro 4, an active 2-way studio monitor which employs a single point-source coaxial design for clear and accurate sound reproduction. This design provides superior phase alignment between components and delivers a wide sweet spot, precise stereo imaging, and symmetrical dispersion patterns. The Eris Pro 4 has unique advantages for Dolby Atmos immersive rooms as well as stereo mix environments. The built-in Class-AB amplifier provides 45W to the 4.5" woven composite woofer and 35W to the 1" silk-dome tweeter, which offers a snappy, accurate transient response. The monitor offers a frequency response from 20 kHz down to 50 Hz and plenty of volume for smaller studio spaces (99 dB peak SPL). The rear panel provides acoustic tuning controls, including an Acoustic Space switch that helps compensate for the boundary bass boost that can occur when a monitor is placed in a corner or near a wall. High and Low controls help to further mitigate room anomalies, while a low-cutoff filter makes it easy to integrate a subwoofer into your monitor setup. Lastly, provisions for wall and ceiling mounts make it easy to integrate Eris Pro 4 monitors into any stereo or multichannel system.