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PreSonus Eris E4.5

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PreSonus Eris E4.5

2-Way 4.5" Active Monitor Pair

Brand New


Regular Price: $199.95

Special Price: $129.99

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Product Description for the PreSonus Eris E4.5

Sound you can trust.

When you’re serious about creating music, you need studio monitors that will speak nothing but the truth. Eris E4.5 studio monitors deliver a smooth and accurate frequency response so they reveal what’s really in your tracks and mixes. They also offer a suite of acoustic tuning controls to let you adjust their response for the acoustics of your room. The result: Eris monitors ensure you hear everything accurately so you can produce your best work.

Kevlar woofers deliver a cleaner overall sound.

Every Eris-series studio monitor utilizes a custom-woven Kevlar low-frequency driver. The weave and nature of the Eris E4.5’s 4.5-inch Kevlar woofer result in a more constant dispersion pattern throughout the frequency range, resulting in less time-smeared audio and cleaner overall sound.

Smooth high end and wide sweet spot.

Each Eris monitor is equipped with a silk dome tweeter that produces a smooth and refined sound, accurately reproducing transients and high frequencies. The tweeter is designed to radiate sound with a fairly wide dispersion pattern, creating a large optimal listening area or “sweet spot” so you can move around and still hear everything accurately.

Monitors you can customize.

Today’s music producers deal with a wide variety of musical genres and often work in challenging mixing environments. That’s why Eris-series studio monitors offer extensive acoustic tuning controls. The three-position Acoustic Space switch helps to compensate for the boundary bass boost that can occur when a monitor is placed in a corner or near a wall. High and Mid controls help to further mitigate room anomalies. A Low Cutoff filter makes it easy to integrate a Temblor T8 subwoofer into your monitor setup, allowing you to adjust the upper end of the Temblor’s range to match the lower end of your full-range speakers.

Speaker placement, room size, and other environmental factors can create sonic anomalies that interfere with a studio monitor’s ability to perform at its best. Eris E4.5 studio monitors provide all the controls necessary to mitigate these problems, allowing you to create the most accurate monitoring setup for your listening environment.

For example, when a monitor is placed close to a wall or in a corner, low frequencies tend to be emphasized more than if the same monitor is far away from any room boundary. This effect is called “boundary bass boost.” And if your room adds artificial bass response to your mix, your mix will be lacking in bass everywhere but in your studio. To mitigate this issue, Eris E4.5 monitors are equipped with an Acoustic Space control that lets you adjust the bass response relative your monitor speakers’ proximity to a wall.

High- and mid-frequency controls are provided to help diminish the effects of other room anomalies that can impact monitoring accuracy. These controls can also be used to simulate different types of speakers or listening environments, allowing you to test your mix without leaving your studio.

Connect to virtually any line-level source.

With three different types of audio inputs, it’s easy to feed audio to your Eris monitors from a mixer, an interface, a media player, or almost any other line-level source. The Eris E4.5 is equipped with stereo ¼”, 1/8”, and RCA inputs. With this selection, you’ll have no problem hooking your Eris speakers up with virtually any line-level source, including your smartphone. The Eris E4.5s are also equipped with a headphone amplifier so you can check your mix on your favorite headphones or quickly cut an overdub without repatching cables.

Accuracy defined.

Like all PreSonus studio monitors, the Eris E4.5 offers consistent, accurate listening. Their compact and powerful design makes them an ideal solution for home and professional studios alike. Their smooth and even frequency response have made Eris monitors one of the fastest growing studio monitor lines in the world. Hear them at your favorite PreSonus dealer.


Components and construction

  • 4.5-inch Kevlar low-frequency transducer
  • 1-inch (25 mm), ultra-low-mass, silk-dome, high-frequency transducer
  • Front-firing acoustic port for superior bass-frequency reproduction
  • Optimized, resonance-suppressing internal bracing
  • 100 dB maximum continuous SPL

User controls

  • HF Driver Adjust (±6 dB, continuously variable)
  • Midrange Driver Adjust (±6 dB, continuously variable)
  • Acoustic Space settings (flat, -2, -4 dB) for accurate mixing contour
  • Highpass filter (Off, 80 Hz, 100 Hz)

Power and safety

  • 50 watt, Class AB biamplification
  • RF interference, output current limiting, over-temperature, transient, and subsonic protection
  • Amplifier “soft start” feature eliminates popping on power-up
  • Internal power supply with IEC connector
  • Power switch with on/off LED

Inputs and outputs

  • Balanced ¼-inch TRS
  • Unbalanced 1/8-inch TS
  • RCA inputs
  • 1/8-inch stereo headphone output


  • Stereo 1/8"
  • Balanced ¼” TRS
  • Unbalanced RCA 


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


  • Frequency Response : 70 Hz - 20 kHz
  • Crossover Frequency : 2.8 kHz
  • LF Amplifier Power : 25W/speaker
  • HF Amplifier Power : (not biamped)
  • Peak SPL (@ 1 meter) : 100 dB
  • LF Driver : 4.5" Kevlar®
  • HF Driver : 1” silk dome
  • Input Impedance : 10 kΩ


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

User Controls

  • Volume Range : A-type taper
  • MF Control : Variable (-6 to +6 dB)
  • HF Control : Variable (-6 to +6 dB)
  • Low Cut : Flat, 80 Hz, 100 Hz
  • Acoustic Space : Flat, -2 dB, -4 dB
Brand Presonus
Weight 13.0000
Dimensions (WxHxD) No


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