PreSonus Eris E3.5 BT Active Media Reference Monitors with Bluetooth (Pair)


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PreSonus® Eris-series studio monitors are used worldwide by audio engineers who need to hear every detail of their recordings. Ideal for gaming and home video production, the Eris E3.5 BT employs the same technology as the larger Eris models to deliver studio-quality sound, with a smooth and accurate frequency response. Yet they’re compact enough to fit almost anywhere.


Components and construction
• 3.5-inch (89 mm) woven composite low-frequency transducer
• 1-inch (25 mm), ultra-low-mass, silk-dome, high-frequency transducer
• Rear-firing acoustic port for superior bass-frequency reproduction
• Optimized, resonance-suppressing internal bracing

User controls
• High- and low-frequency tuning controls
• Front-panel Volume control for speakers and headphone amplifier
• Bluetooth pairing button

Power and safety
• 50 watt (25W/side), Class AB bi-amplification
• RF interference, output current limiting, over-temperature, transient, and subsonic protection
• Amplifier “soft start” feature eliminates popping on power-up
• Internal power supply with IEC connector
• Power switch with on/off LED

Inputs and outputs
• Stereo Bluetooth 5.0 wireless input
• Balanced 1/4-inch TRS, unbalanced 1/8-inch stereo, and RCA inputs
• Integrated stereo headphone amplifier with front-panel 1/8-inch output

Technical Specifications

• Bluetooth 5.0
• 1x Stereo 1/8″
• 2x Balanced 1/4″ TRS
• 2x Unbalanced RCA

• Frequency Response: 80 Hz – 20 kHz
• Crossover Frequency: 2.8 kHz
• Amplifier Power: 25W/speaker
• LF Driver: 3.5″
• HF Driver: 1″ silk dome
• Peak SPL (@ 1 meter): 100 dB
• Input Impedance: 10 kΩ

User Controls
• Volume Range: A-type taper
• MF Control: Variable (-6 to +6 dB, center 100 Hz)
• HF Control: Variable (-6 to +6 dB, center 10 kHz)

• RF interference
• Output-current limiting
• Over-temperature
• Turn-on/off transient
• Subsonic filter
• External mains fuse

• 100-120V ~50/60 Hz or 220-240V ~50/60 Hz

• Vinyl-laminated, medium-density fiberboard

• Dimensions (W x D x H): 5.6″ x 6.4″ x 8.3″ (141 mm x 162 mm x 210 mm)
• Weight (per pair): 6.4 lb. (2.9 kg)



PreSonus is an American manufacturer of professional audio equipment and software, used to create, record, mix, and master music and other audio. This includes their line of digital audio workstation (DAW) software, Studio One.


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