Presonus Eris E4.5 BT

Designed by a proven leader in studio reference monitors, Eris E4.5 BT bluetooth speakers deliver studio-quality sound with the convenience of Bluetooth® wireless technology. In addition to Bluetooth wireless connectivity, you get the flexibility of rear-panel, ¼-inch TRS and RCA inputs; a front-panel 1/8-inch stereo line input for use with mobile audio devices; a handy front-panel volume control; and an integrated headphone amplifier. 

The Eris E4.5 BT speakers’ elegantly compact form is well-suited for any home environment, yet they’re compact enough to fit almost anywhere. making them a great choice for music lovers, content creators, and gamers. 

Components and construction

• 4.5-inch (E 4.5) / 5.25-inch (E5) / 8-inch (E8) Kevlar® low-frequency transducer
• 1-inch (25 mm), ultra-low-mass, silk-dome, high-frequency transducer
• Front-firing acoustic port for superior bass-frequency reproduction
• Optimized, resonance-suppressing internal bracing
• 100 dB (E4.5) / 102 dB (E5) /105 dB (E8) maximum continuous SPL

​User controls

• HF Driver Adjust (±6 dB, continuously variable)
• Midrange Driver Adjust (±6 dB, continuously variable)
• Acoustic Space settings (flat, -2, -4 dB) for accurate mixing contour
• Highpass filter (Off, 80 Hz, 100 Hz)

Power and safety

• 50 (E4.5) / 70 (E5) /130 watt (E8), Class AB biamplification
• 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

• Balanced XLR/¼-inch and unbalanced RCA inputs (E5/E8)
• Balanced ¼-inch TRS and unbalanced 1/8-inch TS, RCA inputs (E4.5)
• 1/8-inch stereo headphone output (E4.5)