Studio Active Monitors PreSonus Eris 3.5 BT 2nd Gen — 2×25W RMS, 80–20,000 Hz, Bluetooth 5.0, RCA/TRS inputs, 3.5 mm headphone

PreSonus Eris 3.5 BT 2nd Gen are compact active studio monitors designed for home and project studios. Each monitor is powered from AC and includes a dedicated 25 W RMS amplifier, delivering a combined output suited for nearfield monitoring and multimedia playback. The monitors feature an 88.9 mm woofer and a 25.4 mm tweeter, a frequency response of 80–20,000 Hz and a maximum SPL of 98 dB. Connectivity options include Bluetooth 5.0 for wireless audio, two RCA inputs, two balanced TRS 1/4" inputs and a 3.5 mm headphone output. Physical dimensions are 140.5 × 164 × 210 mm and the pair weight is 2 × 3.1 kg.

Advantages

Compact footprint and studio-oriented acoustic design provide accurate nearfield monitoring in small spaces. Dual wired and wireless connectivity (Bluetooth 5.0 plus RCA and TRS inputs) allows flexible connection to mixers, audio interfaces, computers and mobile devices. Built-in Class AB amplification offers 2 × 25 W RMS power for consistent output, while the rotary volume control and dedicated headphone output simplify level adjustments and private listening.

Suitable for

• Home recording and project studios
• Mixing and monitoring nearfield audio
• Multimedia playback and desktop setups

Key specifications

• Type: Active studio monitors (pair)
• Power supply: AC
• Rated power: 2 × 25 W RMS
• Frequency range: 80–20,000 Hz
• Maximum sound pressure level: 98 dB SPL
• Woofer diameter: 88.9 mm
• Tweeter diameter: 25.4 mm
• Volume control: Rotary
• Connectivity: Bluetooth 5.0, 2 × RCA inputs, 2 × TRS 1/4" inputs, 3.5 mm headphone output, AUX in
• Dimensions (W×D×H): 140.5 × 164 × 210 mm
• Weight: 2 × 3.1 kg
• Color: Black

How to use

Place the monitors at ear level in a nearfield configuration, angled toward the listening position for accurate stereo imaging. Connect the active monitor (powered unit) to AC power and link the passive or secondary monitor as specified by the manufacturer. Select a source via wired inputs (RCA or TRS) or pair a device using Bluetooth 5.0 for wireless playback. Adjust the rotary volume control to set listening level and use the headphone output for private monitoring.

Recommendations

For best monitoring results, allow a short warm-up period after powering on, position the monitors away from reflective surfaces and use them at moderate listening levels to avoid distortion near the low-frequency limit (below 80 Hz). Use balanced TRS connections where possible to reduce interference in studio environments.