PreSonus Eris Pro 4 – 4.5″ Active Coaxial Studio Monitor (Single)

The PreSonus Eris Pro 4 is a 4.5-inch 2-way biamped, active coaxial studio monitor designed for stereo mix environments and Dolby Atmos immersive rooms. Its single point-source coaxial design delivers superior phase alignment, a wide sweet spot, precise stereo imaging, and symmetrical dispersion patterns – unique advantages for multi-channel and immersive setups.

A 1″ ultra-low-mass silk-dome tweeter provides snappy, accurate transient reproduction, while the 4.5″ woven-composite woofer offers tight, clear bass with plenty of punch. Flexible balanced and unbalanced inputs let you connect almost any line-level source, and wall/ceiling mount provisions make integration easy.

Specifications

• Configuration: 2-way active coaxial, biamped
• LF driver: 4.5″ woven-composite woofer (45W)
• HF driver: 1″ silk-dome tweeter (35W)
• Total amplification: 80W Class AB
• Frequency response: 50 Hz – 20 kHz
• Peak SPL: 99 dB @ 1 m
• Crossover frequency: 3.4 kHz
• Inputs: Balanced XLR, balanced 1/4″ TRS, unbalanced RCA
• Acoustic tuning: HF and Acoustic Space controls
• Mounting: Provisions for wall and ceiling mounts
• Dimensions: 9″H x 7.5″W x 8.6″D
• Sold as a single speaker