The PreSonus Eris Pro 8 is an 8″ 2-way active studio monitor built for serious mixing, music production and professional monitoring.

Its coaxial, single-point-source design (woofer + tweeter on same acoustic axis) ensures excellent phase coherence, accurate stereo imaging and a wide sweet spot — delivering a natural, three-dimensional soundstage with tight, controlled bass and detailed highs. 

The ported cabinet and robust 140 W amplification let the monitor reach deep down to ~ 35 Hz, giving you a full-range response that remains clear and dynamic even at higher volumes.

With flexible input options and acoustic tuning controls, the Eris Pro 8 adapts well to different rooms, interfaces, and listening environments — whether you’re working on music, mixing video, or monitoring audio for film or multimedia.

Features & Specifications

• 8″ woven-composite low-frequency driver
• 1.25″ ultra-low-mass silk-dome high-frequency driver (coaxial design)
• 140 W Class-AB bi-amplification (75 W for woofer + 65 W for tweeter)
• Frequency response: 35 Hz – 20 kHz
• Maximum peak SPL: ~ 108 dB @ 1 m
• Crossover frequency: ~ 3.2 kHz
• Acoustic tuning controls: Mid (± 6 dB at ~1 kHz), High (± 6 dB, ~10 kHz), plus “Acoustic Space” adjustment (flat, –2 dB, –4 dB) to compensate for placement (walls, corners)
• Switchable Low-Cut filter (useful when pairing with subwoofer) — selectable 80 Hz or 100 Hz
• Balanced inputs: XLR and ¼″ TRS jack; Unbalanced input: RCA (cinch)
• Front-ported enclosure (bass reflex) for controlled low-frequency output
• Auto-standby (power-saving, switchable)
• Durable vinyl-laminated MDF cabinet
• Suitable for stereo mixes, small to medium studios, and immersive setups (e.g. Dolby Atmos)