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PreSonus Eris E4.5 Studio Monitor (Pair)


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PreSonus Eris E4.5 Studio Monitor (Pair)

The PreSonus Eris E4.5 are a great affordable choice as a High Definition Active Studio Monitor

Cheap computer speakers and home-stereo speakers are designed to make music sound good and hide the flaws, while most low-cost studio monitors are hyped to sound good in the store showroom. If you mix on those speakers, you won’t hear problems that can show up in your final production.

Not so with PreSonus Eris-series active studio monitors. Thanks to well-designed Kevlar® low frequency transducers, low-mass silk-dome tweeters, responsive Class AB amplification, and professional acoustic-adjustment controls, Eris delivers the goods.

As you expect from PreSonus, they 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.

Yet Eris-series speakers are ultra-affordable, making them a terrific value. And with three models, you can easily find the Eris monitor that best suits your studio needs.

Today’s music producers deal with a wide variety of musical genres and often work in more than one location. That’s why Eris-series studio monitors offer extensive user controls not usually found in their price class.

The most basic control is the Input Gain, which determines the signal level before it reaches the power amp. This is part of gain-staging your overall system—that is, setting the levels for every part of the recording chain in order to get the optimal level of clean audio all the way through. Once you’ve gain-staged your system, you can leave this control alone.

The Acoustic Space Control

All Eris speakers provide three EQ controls in their Acoustic Tuning section: High, Mid, and Low Cutoff. These controls enable you to fine-tune the monitors and even to broadly approximate the sounds of different types of speakers so you can hear what your mix might sound like, for instance, on a car stereo or portable radio. The Low control also is useful when using the Eris with a subwoofer.



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1- Stereo 1/8" 1- Balanced XLR 1- Balanced XLR
2- Balanced ¼” TRS 1- Balanced ¼” TRS 1- Balanced ¼” TRS
2- Unbalanced RCA 1- Unbalanced RCA 1- Unbalanced RCA


Frequency Response 70 Hz - 20 kHz 53 Hz - 22 kHz 35 Hz - 22 kHz
Crossover Frequency 2.8 kHz 3 kHz 2.2 kHz
LF Amplifier Power 25W/speaker 45W 75W
HF Amplifier Power (not biamped) 35W 65W
Peak SPL (@ 1 meter) 100 dB 102 dB 105 dB
LF Driver 4.5" Kevlar® 5.25” Kevlar® 8” Kevlar®
HF Driver 1” silk dome 1” silk dome 1.25” silk dome
Input Impedance 10 kΩ 10 kΩ 10 kΩ

User Controls

Volume Range A-type taper A-type taper A-type taper
MF Control Variable (-6 to +6 dB) -6, 0, +6 dB -6, 0, +6 dB
HF Control Variable (-6 to +6 dB) -6, 0, +6 dB -6, 0, +6 dB
Low Cut Flat, 80 Hz, 100 Hz Flat, 80 Hz, 100 Hz Flat, 80 Hz, 100 Hz
Acoustic Space Flat, -2 dB, -4 dB Flat, -2 dB, -4 dB Flat, -2 dB, -4 dB


RF interference RF interference RF interference
Output-current limiting Output-current limiting Output-current limiting
Over-temperature Over-temperature Over-temperature
Turn-on/off transient Turn-on/off transient Turn-on/off transient
Subsonic filter Subsonic filter Subsonic filter
External mains fuse External mains fuse External mains fuse


100-120V ~50/60 Hz or 220-240V ~50/60 Hz 100-120V ~50/60 Hz or 220-240V ~50/60 Hz 100-120V ~50/60 Hz or 220-240V ~50/60 Hz


Vinyl-laminated, medium-density fiberboard Vinyl-laminated, medium-density fiberboard Vinyl-laminated, medium-density fiberboard


Width 6.42" (163 mm) 7” (178 mm) 9.84” (250 mm)
Depth 7.09" (180 mm) 7.68” (195 mm) 11.77” (299 mm)
Height 9.45" (241 mm) 10.24” (260 mm) 15.12” (384 mm)
Weight 13 lb. (5.9 kg) 10.2 lbs (4.63 kg) 22.2 lbs (10.07 kg)

​NOTE: As a commitment to constant improvement, PreSonus Audio Electronics, Inc., reserves the right to change any specification stated herein at any time, without notification.