PreSonus Eris E4.5 (Pair)

  • 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
In stock
Get it between Feb 22 - Feb 29,2024

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.

Nothing But the Truth.
When you’re serious about creating music, you need monitor speakers that will reveal all of the flaws in your tracks and mixes. Eris professional studio monitors deliver the truth, thanks to very accurate response, tight bass, and clear upper end.

Making Connections.
Eris monitors give you three different types of inputs (RCA/TRS/XLR) so you can use them with a wide variety of audio sources.

Components and construction

  • 4.5-inch Kevlar® low-frequency transducer
  • 1-inch (25 mm), ultra-low-mass, silk-dome, high-frequency transducer
  • Rrear-firing (E4.5) acoustic port for superior bass-frequency reproduction
  • Optimized, resonance-suppressing internal bracing
  • 100 dB (E4.5) 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 (E4.5) 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 and unbalanced 1/8-inch TS, RCA inputs (E4.5)
  • 1/8-inch stereo headphone output (E4.5)



  • 1- Stereo 1/8″
  • 2 – Balanced 1/4″ TRS
  • 2 – UnBalanced RCA



  • 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


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



  • RF interference
  • Output-current limiting
  • Over-temperature
  • Turn-on/off transient
  • Subsonic filter
  • External mains fuse
  • Cabinet
  • Vinyl-laminated, medium-density fiberboard



  • Width 6.42″ (163 mm)
  • Depth 7.09″ (180 mm)
  • Height 9.45″ (241 mm)
  • Weight 13 lb. (5.9 kg)
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