Presonus Eris SUB 8

he PreSonus Eris Sub8 is a compact, powered studio subwoofer designed to work with any set of studio monitors, especially the PreSonus Eris E3.5 or E4.5 full-range studio monitors.

A 100W Class-AB amplifier powers the front-firing 8" paper-composite woofer, which offers a frequency response of 200 Hz down to 30 Hz with a respectable 113 dB peak SPL. The rear panel features a pair of 1/4" and RCA inputs as well as 1/4" and RCA thru/outputs. A variable input gain knob (-30 to +6 dB) and a continuously variable lowpass filter (50 to 130 Hz) helps you dial in the volume and low-frequency sweet spot. Additionally, a defeatable highpass filter removes frequency content below 80 Hz from the full-range signal sent from the Eris Sub8 output to the main speakers.

Other notable features include a polarity-invert switch and protection circuits for RF interference, output-current limiting, over-temperature, turn on/off transient, subsonic filter, and an external mains fuse. The Eris Sub8 ships with a power cord.

8" front-firing, paper-composite, low-frequency transducer with high-elasticity rubber surround

Class-AB amplifier: 100W peak (50W RMS) power

Input gain control (-30 dB to +6 dB, continuously variable)

Continuously variable lowpass filter (50 to 130 Hz)

Defeatable highpass filter removes frequency content below 80 Hz from the full-range signal sent from the Eris Sub8 outputs to the main speakers

Left and right balanced 1/4" TRS and unbalanced RCA main inputs

Left and right balanced 1/4" TRS and unbalanced RCA pass-through outputs for connecting satellite speakers

Polarity invert switch

Protection: RF interference, output-current limiting, over-temperature, turn on/off transient, subsonic filter, external mains fuse