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PreSonus Eris E4.5

Powered 2-way studio monitors

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  • PreSonus Eris E4.5

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Our take on the PreSonus Eris E4.5

by Eric Angevine
PreSonus

Hear what's happening in your music

These monitors have their own built-in amps for easy, foolproof setup. Having the amps matched perfectly to the drivers helps ensure flat, accurate response, so you can hear the details of your mixes. "Bi-amplified" or "tri-amplified" models use separate amplifiers for each driver for maximum fidelity. Tone-shaping controls are frequently built in to help you customize your monitors to suit your space.

The go-anywhere studio monitor

Ideally, you're sitting in the comfy chair in your own studio when you get ready to mix. If you instead find yourself on the go with a laptop and some basic gear, PreSonus E4.5 powered studio monitors provide accuracy and affordability in a portable package. With 4-1/2" Kevlar woofers encased in solid MDF cabinets, the E4.5 pair becomes a crucial part of a durable, reliable listening station you can use anywhere.

Flexible connection and control options

Each Eris E4.5 pair consists of one active speaker and one passive speaker. Primary connections are located on the back of the active speaker, which provides signal and power to the passive speaker through a regular speaker wire connection. One pair of balanced 1/4" TRS inputs and a pair of unbalanced RCA inputs give you flexibility for line-level input. A 1/8" jack on the front of the same speaker allows you to plug in an MP3 player to check how everything sounds on a mobile device.

When you're on the move, you don't always have control over the space you're working in, but the E4.5 has takent that into account. Output equalization is available via two variable tuning knobs, one for high frequencies, and another for mids. There's also a low cut switch offering flat response, or attenuation at 80 Hz or 100 Hz. If you can't quite manage ideal placement of the speakers in your workspace, the Acoustic Space switch helps you tune the action of the rear bass ports so the low frequencies are still hitting on all cylinders. If your work takes you overseas, the E4.5 also has an AC select switch so you can adapt to voltage requirements outside the U.S.

See more info on this item

Highlights:

  • 4-1/2" Kevlar woofer and 1" silk dome tweeter
  • Class A/B amplifier with 25 watts x 2
  • frequency response: 70-20,000 Hz
  • peak SPL: 100 dB
  • inputs:
    • balanced 1/4" TRS
    • unbalanced RCA
    • 1/8" stereo auxiliary
  • 1/8" headphone output
  • front-panel volume control
  • bass-reflex cabinet with rear port
  • variable high-frequency shelf EQ with ±6 dB boost/cut at 10 kHz
  • variable mid-frequency peak EQ with ±6 dB boost/cut at 1 kHz
  • low-frequency cutoff switch (flat, 80 Hz, 100 Hz) with -12 dB/octave slope
  • Acoustic Space switch (0, -2 dB or -4 dB) to adjust bass boost when placed near a wall
  • AC select switch allows Eris E4.5 to be used outside the U.S.
  • 6-7/16"W x 9-1/2"H x 7-1/8"D
  • weight: 13 lbs./pair
  • warranty: 1 year parts and labor
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
General
Woofer Size (inches)
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4.5
Tweeter Size (inches)
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1
Midrange Size (inches)
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N/A
Full range Driver size
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N/A
Enclosure type
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Bass reflex
Built in amplifier
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Y
RMS Power rating
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25
Peak Power rating
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N/A
Parts warranty
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1 Year
Labor warranty
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1 Year
Inputs
Width (inches)
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6-7/16
Height (inches)
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9-1/2
Depth (inches)
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7-1/8
Weight
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13 lbs
Frequency Response
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70Hz-20kHz
Maximum Peak SPL
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100
Product Research
What's in the box?

Download owner's manual

  • E4.5 active studio monitor
  • E4.5 passive studio monitor
  • 59" Audio cable (with 3.5mm TRS plug on one end and 2 RCA stereo plugs on the other end)
  • 59" Audio cable (with 3.5mm TRS plugs on each end)
  • 6.5' Speaker wire (bare wire ends)
  • Power cable
  • 8 Self-adhesive foam feet
  • Owner's Manual

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

Active Two-Way Speaker: The PreSonus Eris E4.5 powered studio monitor speaker sports a 4.5" Kevlar low-frequency driver and 1" silk-dome tweeter powered by a 25W Class-AB amplifier. It can crank out a clean 100 dB SPL, peak. Frequency response is rated at 70 Hz to 20 kHz

Bass Reflex Enclosure: The E4.5 powered studio monitor speaker has a rear-ported enclosure made of vinyl-laminated, medium-density fiberboard (MDF).

Signal Inputs: The E4.5 has balanced 1/4" TRS and unbalanced RCA inputs, as well as unbalanced 1/8" inputs for your smartphone or MP3 player, giving you all the flexibility you need for system hookup. Spring clips terminals are used to connect the E4.5 active and passive speaker together with the included 6.5' length of speaker wire.

Controls: A combination of controls lets you create a linear response for accurate monitoring and enables you to simulate different listening environments, so you don't have to listen to mixes on your car, consumer computer speakers, and home stereo to check how the music sounds with different systems. Instead, you can adjust the Eris E4.5 studio monitor response and test your mixes without leaving your studio.

  • Input Gain: The Input Gain sets the level of the speaker's input signal from your connected source before it is amplified.
  • Acoustic Tuning EQ: The Eris E4.5 provides three EQ controls in its 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.
    • High: boosts or cuts all frequencies above 10 kHz by ±6 dB
    • Mid: the Mid control is a peak EQ that lets you boost or cut a specified frequency band; in this case, a band about two octaves wide, centered at 1 kHz
    • Low: rolls off the level of all frequencies below the specified frequency (80 or 100 Hz) at a slope of -12 dB/octave
  • Acoustic Space Switch: In addition to the Acoustic Tuning controls, the Eris speaker offers a three-position Acoustic Space switch. This switch controls a second-order, low shelving filter that cuts the level of all frequencies below 800 Hz by a specified amount (-2 or -4 dB) to compensate for the boundary bass boost that occurs when the monitor is placed near a wall or corner. If you don't want to roll off those lows, set it to 0 dB.

Protection Circuitry: Any loudspeaker is subject to an assortment of environmental and performance problems, and the Eris monitor offers protection from the most common of these factors.

  • RF Shielding: RF shielding protects against radio frequencies that could be induced into the signal and become audible.
  • Thermal Protection: The Eris monitor also provides over-temperature protection to avoid heat-related issues.
  • Short Circuit: Current-output limiting prevents damage should there be a short circuit on the speaker terminals.
  • Subsonic Filter: Subsonic protection is used to filter out extremely low-frequency vibrations that could interfere with the woofer's performance.
  • Soft Start Up: The integrated power amplifiers have a "soft startup" so that you don't get damaging pops in the speakers when you power them up.

Placement: Ideally, near-field monitors should be placed so that the tweeters are at the same height as your ears when you are mixing. The Eris E4.5 speaker can be placed vertically or horizontally; when placed horizontally, two E4.5 speakers should form a mirror image pair, with the tweeters on the outside. The speakers should be separated so that the tweeters form an equilateral triangle with your head. The monitors should be "toed-in" or angled, so that they are pointed at you, not pointed straight ahead.

 
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For a more in-depth review and enhanced detailed information on the PreSonus Eris E4.5, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_861ERISE4/PreSonus-Eris-E4-5.html ).

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