Adding a subwoofer to full-range speakers enables you to hear the low-frequency foundation of your mix more accurately so you can make better-informed decisions and create more translatable mixes. The surprisingly loud 100 watt Eris Sub8 drops down to a molar-rattling 30 Hz, so you’ll hear the full sonic spectrum and produce better mixes. For EDM and hip-hop producers, in particular, a subwoofer is a must-have.
 
Although compatible with a variety of full-range studio monitors, the PreSonus® Eris® Sub8 compact studio subwoofer was designed to complement the voicing and frequency response of Eris-series studio monitors and media reference monitors. The Eris Sub8 lets you naturally extend the reach of your Eris E3.5, E4.5, E44, E5 and E5 XT monitors in a manner appropriate to smaller rooms—exactly where these monitors excel.
 
Flexible connectivity options and onboard controls let you effortlessly create a 2.1 monitoring system and tune it to your room. Set the input gain and even invert the polarity. 
 
A highpass filter and lowpass filter (crossover) control ensure your Eris Sub8 starts working at the precise frequency where your main monitors stop, avoiding the flabby, smudged, low-end mess that occurs without a crossover. 
 
So add a PreSonus Eris Sub8 subwoofer to your sound system and hear, with precision accuracy, the powerful low-frequency sound you’ve been missing.
 
Features
 
8-inch, front-firing, paper-composite low-frequency transducer with high-elastisity 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 Hz 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 ¼-inch TRS and unbalanced RCA main inputs
Left and right balanced ¼-inch 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