Eris E3.5 2-Way 3.5" Near Field Studio Monitor (Pair)

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Eris E3.5 Active Media Reference Monitors
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Eris E3.5
Mac & Win
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Woofers that deliver a cleaner overall sound.

Every Eris-series studio monitor utilizes a woven composite,low-frequency driver. The weave and nature of the Eris E3.5’s 3.5-inch wooferresult 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.

The Eris E3.5 is equipped with a one-inch silk-dome tweeter thatproduces a smooth and refined sound, accurately reproducing transients and highfrequencies. The tweeter is designed to radiate sound with a fairly widedispersion pattern, creating a large optimal listening area or “sweet spot” soyou can move around and still hear everything accurately.

Easy-to-use controls.

A speaker’s response is affected by where you place it andthe acoustics of your space. That’s why Eris E3.5 active media referencemonitors offer easy-to-adjust high- and low-frequency controls. A convenientfront-panel volume knob sets both the speaker level and the integratedheadphone amplifier level. Be careful with that volume knob, though: Eris E3.5sare driven by an onboard 25 watt/side power amplifier and can get a lot louderthan you may expect, while still delivering clear, accurate audio.

Connect to virtually any line-level source.

With three different types of audio inputs, it’s easy tofeed audio to your Eris monitors from a mixer, an interface, a media player, oralmost any other line-level source. The Eris E3.5 is equipped with rear-panel,¼-inch TRS and RCA inputs, as well as front-panel ⅛-inch stereo, unbalancedline inputs for use with mobile audio devices. With this selection, you’ll haveno problem hooking your Eris speakers up with virtually any line-level source,including your smartphone or tablet. The loud, clear, front-panel headphoneamplifier lets you work and play in stealth mode, without disturbing yourhousemates.

Accuracy defined.

Like all PreSonus monitor speakers, the Eris E3.5 offersconsistent, accurate listening, with the smooth and even frequency responsethat has made Eris monitors popular around the world. Their compact andpowerful design makes them an ideal solution for any small space.


Want extra-deep low end? Pair compact Eris E3.5s withPreSonus’ powerful Temblor® T8 active subwoofer for a truly full-range soundsystem that fits almost anywhere.



Components and construction

3.5-inch (89 mm) woven composite low-frequency transducer

1-inch (25 mm), ultra-low-mass, silk-dome, high-frequencytransducer

Rear-firing acoustic port for superior bass-frequencyreproduction

Optimized, resonance-suppressing internal bracing

User controls

High- and low-frequency tuning controls

Front-panel Volume control for speakers and headphoneamplifier

Power and safety

50 watt (25W/side), Class AB biamplification

RF interference, output current limiting, over-temperature,transient, and subsonic protection

Amplifier “soft start” feature eliminates popping onpower-up

Internal power supply with IEC connector

Power switch with on/off LED

Inputs and outputs

Balanced ¼-inch TRS, unbalanced 1/8-inch stereo, and RCAinputs

Integrated stereo headphone amplifier with front-panel1/8-inch output

Technical Specifications


 1- Stereo 1/8"
 2- Balanced TRS
 2- Unbalanced RCA


Frequency Response80 Hz - 20 kHz
Crossover Frequency2.8 kHz
Amplifier Power25W/speaker
LF Driver3.5"
HF Driver1 silk dome
Peak SPL (@ 1 meter)100 dB
Input Impedance10 k

User Controls

Volume RangeA-type taper
MF ControlVariable (-6 to +6 dB, center 100 Hz)
HF ControlVariable (-6 to +6 dB, center 10 kHz)


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


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


 Vinyl-laminated, medium-density fiberboard


Width5.6" (141 mm)
Depth6.4" (162 mm)
Height8.3" (210 mm)
Weight (per pair)6.4 lb. (2.9 kg)
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