PreSonus Eris E4.5

Pair of High-Definition 2-Way 4.50" Near Field Studio Monitors


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PreSonus Model ERIS 4.5

When you’re ready to get serious about recording, it’s time to step up to PreSonus Eris-series studio monitors. Cheap computer speakers and home-stereo speakers won’t reveal the truth about your mix. They aren’t designed for that.

In contrast, Eris speakers are real studio monitors, delivering a very accurate response with a tight bass and very clear upper end. That’s what you need in a home studio. Eris-series speakers deliver a lot more than you would expect from a budget-priced studio monitors. As you expect from PreSonus, Eris speakers use quality components, are well constructed, and deliver professional audio quality. They’re lightweight and compact and look as professional as they sound. But what really sets them apart from comparably priced systems are pro features such as user controls that allow you to tailor the speakers’ response to your needs.

General Features:

  • Pair Of High-Definition 2-Way 5.25" Near Field Studio Monitors
  • Lightweight and compact design
  • Accurate response with tight bass
  • 4.50" Kevlar® low-frequency transducer
  • 1" ultra-low-mass, silk-dome high-frequency transducer
  • 50W class AB biamplification
  • Protection from RF interference, output current limiting, over-heating, transient, and subsonic
  • Vinyl-laminated, medium-density fiberboard
  • Optimized, resonance-suppressing internal bracing
  • Accurate Mixing Settings For:
    • Midrange (±6 dB, continuously variable)
    • HF (±6 dB, continuously variable)
    • High-Pass (off, 80 Hz, 100 Hz)
    • Acoustic Space (flat, -2, -4 dB)
  • 1/8" stereo headphone output
  • Inputs:
    • Balanced 1/4" TRS
    • Unbalanced 1/8" TS
    • RCA
  • Sensitivity: 100 dB
  • Impedance: 10 Ohms
  • Frequency Response: 70-20,000 Hz
  • Crossover Frequency: 280 Hz
  • Color: Black
  • Dimensions: 6.42"W x 7.09"D x 9.45"H
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

General Features

Monitor Type
Studio monitors can be passive or active. Passive monitors require an outside amplification of the audio signal. Active monitors have a built-in amplifier to provide proper output to the speakers.
Near-Field Active
Continuous Power
This is the continuous power rating of the studio monitors. For passive monitors, this is the amount of wattage that the monitor needs to function properly. For active monitors, this is the amount of wattage that the built-in amplifier sends to each driver.
25 watts
Frequency Response
The range of frequencies the speaker will reproduce (lowest frequency to the highest). Bigger is better, meaning the wider the range, the better. The optimal range is 20 - 20,000 Hz (which is the range of human hearing).
70 - 20,000 Hz
Maximum Sound Pressure Level (SPL)
This is the maximum Sound Pressure Level (SPL) of the studio monitor. The higher the SPL rating, the louder the monitors are able to go.
100 dB
Crossover Frequency
This is the frequency that the studio monitor is able to separate the audio frequencies that are being sent to the LF driver and the HF driver.
2.8 Hz
These are the analog inputs for the studio monitor.
1/4" TRS
1/8" (3.5mm) Stereo Mini-Jack
RCA Composite
These are all of the different controls and adjustments that can be made on the monitor.
Power On/Off
Volume Knob
High Frequency Filter
Low Frequency Filter

High Frequency Driver

Speaker Size
This is the size of the High Frequency (HF) driver inside the studio monitor.
Speaker Design
This is the design of the High Frequency (HF) driver in the studio monitor.
Driver Material
This is the main material that the High Frequency (HF) driver is made out of.

Low Frequency Driver

Speaker Size
This is the size of the Low Frequency (LF) driver inside the studio monitor.
Speaker Design
This is the design of the Low Frequency (LF) driver in the studio monitor.
Driver Material
This is the main material that the Low Frequency (LF) driver is made out of.
Woven Kevlar

Studio Monitor Features

Enclosure Type
This is the type of enclosure of the studio monitor.
The height of the item, measured from top to bottom, in inches.
The width of the item from left to right (side-to-side) measured in inches.
The front-to-rear depth of the item, in inches. If the item is angled or slanted, this value is the bottom measurement.
Weight (Pounds)
This is the weight of the item in pounds (lbs).
13.2 lbs

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating


Rohnert Park, CA

Great Sound

September 6, 2014

The PreSonus Eris E4.5 speakers are my first pair of active monitors and I couldn't be happier. Previously, I only had a basic Logitech desktop speakers, so I wanted something a bit better to match my pro headphones. For their price, the E4.5s are perfect. Very clear and accurate from low to high. My only complaint (which is to be expected with smaller drivers) is the lack of hard hitting bass. The drop off on these is a little higher than I'd like. I mostly listen to rock and metal though, so it's never really an issue.

In terms of build quality and features, very solid. No complaints. They have all the inputs, outputs, and adjustments you'd expect on active monitors.

Overall, I highly recommend these monitors.

17 of 19 found this helpful

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Syracuse, NY

Solid Studio Monitors

August 6, 2014

This is the first set of studio monitors I've gotten. From what I can tell, they are excellent. The settings on the back of the monitor for adjusting your listening space were really helpful. I don't think I've ever had a better listening experience, especially for the money.

12 of 15 found this helpful

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Product Summary


Model Number

Eris E4.5





Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: PreSonus Eris E4.5

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PreSonus Eris E4.5

Pair of High-Definition 2-Way 4.50" Near Field Studio Monitors


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