PreSonus Eris E4.5

Powered 25W Studio Monitors with 4.5" Kevlar Woofer, 1" Silk-dome Tweeter, and Acoustic Tuning Controls (pair)
PreSonus Eris E4.5 image 1
PreSonus Eris E4.5 image 1
$199.95 (pair)
Sweetwater Savings: $50.00 MSRP: $249.95
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PreSonus Eris E4.5
In Stock!
$199.95 (pair)

Small, Accurate, Affordable Monitors

The PreSonus Eris E4.5 2-way active studio monitors give you a high-quality, high-value alternative to "computer" speakers. Eris employs a Kevlar woofer, a low-mass silk-dome tweeter, Class AB amplification, and professional acoustic-adjustment controls to deliver true studio-monitor accuracy, at a price point that's flooded with ho-hum "multimedia" speakers. And unlike comparably priced studio monitors, Eris gives you controls for flattening frequency response to facilitate accurate mixing. Need accurate monitors but don't want to break the bank? You should give the PreSonus Eris E4.5 a serious audition.

PreSonus: gear designed by musicians, for musicians

The brainchild of current Chief Strategy Officer Jim Odom - a musician, producer, and LSU graduate in electrical engineering, and co-founder Brian Smith (VP of Engineering), a fellow LSU engineering graduate, PreSonus was launched in 1995 with the mission of building affordable, professional music-production tools for musicians and audio engineers. Based in Baton Rouge, Louisiana, PreSonus in 2014 moved into its new digs, complete with a professional recording studio and live-sound venue designed by the world-famous Walters-Storyk Design Group.

PreSonus Eris E4.5 Active Studio Monitors (pr) Features at a Glance:
  • Outstanding performance and value
  • 4.5" Kevlar woofer, 1" ultra-low-mass silk-dome tweeter
  • 25W Class AB amplification per speaker
  • Balanced 1/4" TRS, unbalanced 1/8" TS, RCA, and bare-wire inputs
  • 1/8" stereo headphone output
  • Acoustic Space settings let you properly integrate your Eris monitors into your room
  • Acoustic Tuning controls let you flatten response for mixing accuracy
The PreSonus Eris E4.5: studio-monitor mojo at a "multimedia" price!

Additional Media

Studio Monitor Buying Guide

Tech Specs

Powered Yes
Power Configuration Single Amp
LF Driver Size 4.5"
LF Driver Type Cone
LF Driver Material Kevlar
HF Driver Size 1"
HF Driver Type Dome
HF Driver Material Silk
Total Power 25W
Frequency Range 70Hz-22kHz
Crossover Frequency 2.8kHz
Maximum Peak SPL 100 dB
Input Types 1 x 1/4" (TRS), 1 x 1/8" (TS), 2 x RCA
Output Types 1 x 1/8" (Headphones)
Enclosure Type Ported
Height 9.45"
Width 6.42"
Depth 7.09"
Weight 13 lbs.
Manufacturer Part Number E4.5

Customer Reviews

Based on 21 reviews
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These sound as good as my 12 inch powered monitors. Even at low volume I get pure sound. No hum no distortion.
Music background: Studio musician

Eris 4.5 unbelivable imaging

Nice size, small and portable. Great imaging when placed at arms length and about a 45 degree angle off of center, louder that you would thing, makes for a great in the box editing monitors Wish I had gotten more than two pairs, could make an interesting surround set. Wish they had a carrying bag beat lugging around a pair of 8s
Music background: Recording and Reinforcement Engineering


Okay I've setup my Presonus Eris 4.5 Studio Monitors and have ran them for a couple of days and I just have to say AWESOME! These speakers have more than the power I need, are state of the art, AND I can hear all the low end I need CLEARLY and with plenty of headroom/power/volume. Affordable and perfect for my home studio setup, the perfect match for my Audiobox and Studio 1 Professional!
Music background: Pop-Rock/Electronic Indie Recording Artist


Awesome monitors, I have run them almost all day at times, creating music, no problems and no complaints.
Music background: Dj, pianist, guitarist

Dope! Very Pleased.

The product was exactly what I had imagined it would be like given the description. A lotta bang for a good price and the reviews on your website really helped me narrow my choices down accurately. 100% pleased.
Music background: Hip Hop Producer - Hobbyist
See also: Powered Monitors, PreSonus, PreSonus Active Monitors