The PreSonus Eris E3.5 is a pair of 3.5" 2-way 25W nearfield monitors designed to provide a compact sonic reference system for musicians, producers, and audio engineers in home setups, project studios, and commercial facilities. Each monitor produces a frequency response of 80 Hz to 20 kHz via a 3.5" Kevlar woofer and a 1" silk dome tweeter powered by a 25W class AB amplifier. The monitors can handle 100 dB maximum peak SPL. A rear bass-reflex port provides enhanced low-frequency range.

For inputs, the monitor system accepts balanced 1/4" TRS, unbalanced 3.5mm, and unbalanced RCA inputs. An integrated 2-band AEQ allows you to fine tune the monitors to your listening preference. The AEQ controls include ±6 dB gain at 100 Hz and ±6 dB at 10 kHz. A front-panel 3.5mm stereo mini-jack is provided for easy headphone monitoring.

50W (25W per side) 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 Specifications Speakers LF Driver 3.5" / 89 mm Kevlar speaker HF Driver 1" / 25 mm silk dome tweeter I/O Inputs 2 x balanced 1/4" TRS 2 x unbalanced RCA (L/R pair) 1 x 1/8" (3.5 mm) TRS stereo mini-jack Outputs 1 x 1/8" (3.5 mm) TRS stereo mini-jack Performance Frequency Response 80 Hz to 20 kHz Crossover Frequency 2.8 kHz Amplifier Power 25 W per speaker Maximum SPL At 1 m: 100 dB (peak) Input Impedance 10 kOhms User Controls Volume Management A-type taper Mid Frequency Driver Control: variable (-6 to +6 dB, centre @ 100 Hz) High Frequency Driver Control: variable (-6 to +6 dB, centre @ 10 kHz)