PreSonus ERIS 4.5BT 4.5-inch Woven Woofer / 1-inch Silk-Dome Tweeter 50W Class AB / Bluetooth 5.0 / Headphone Amp (Pair)

Description

The Eris 4.5BT 2nd Gen are compact active media reference monitors designed to deliver accurate, balanced audio reproduction in small rooms and desktop setups. They combine a 4.5-inch woven-composite low-frequency driver and a 1-inch silk-dome tweeter to produce clear highs and tight, controlled bass. The speakers are voice-tuned to provide a smooth crossover transition and reduced listening fatigue over long sessions.

These monitors include 50 watts of Class AB amplification that provides consistent headroom and dynamic response. A front-panel master level knob also controls the integrated headphone amplifier, with a front 1/8-inch jack for private listening. High- and low-frequency acoustic tuning controls let you tailor the frequency response to room acoustics for a more precise monitoring environment.

Performance specifications include a frequency response from 70 Hz to 20 kHz and a peak SPL rating of 100 dB at 1 meter. The crossover frequency is 2.8 kHz and the monitors employ a 4.5-inch woven glass fiber composite LF driver and a 1-inch ultra-low-mass silk dome HF driver. Protection systems include RF interference suppression, output-current limiting, over-temperature protection, turn-on/off transient protection, and a subsonic filter.

Connectivity options cover balanced 1/4-inch TRS inputs, unbalanced RCA inputs, an unbalanced 1/8-inch stereo input, and reliable stereo Bluetooth 5.0 wireless input. These inputs provide compatibility with audio interfaces, mixers, mobile devices, and consumer playback devices. The integrated headphone amp and front-panel jack ensure quick transitions between monitoring and private listening.

The Eris 4.5BT suits bedroom studios, video editing desks, and compact gaming rigs where accurate nearfield monitoring and small footprint are required. Their neutral voicing helps reveal mix details and translation issues, while the adjustable HF and LF controls allow correction for common desk and wall boundary effects. Pairing an Eris Sub8 BT will expand low-frequency extension into a matched 2.1 system when more bass is needed.

Build quality uses a vinyl-laminated MDF cabinet and an elegant industrial design that blends into home and desktop setups. Setup is straightforward – connect sources via the preferred input, set the level control, and use the acoustic tuning to compensate for room anomalies. Power Saver mode reduces power draw after 40 minutes of inactivity to improve efficiency and longevity.