PreSonus ERIS-E66

2-Way, 2x6" Active Monitor, 140W bi-amp


Write the First Review.
Sale Price: $234.46
List Price: $449.95
You save 48%!


Pro Buyer Card
$7/month for 36 months
0% Interest for 36 Months! Learn More
Available to Order! Item usually SHIPS in 6-10 business days
Need it sooner? Call us!
  • Components and construction:
  • Dual 6.5", custom-woven Kevlar® LF/midrange drivers produce dynamic, size-defying bass output
Print this page.

Related Products

The PreSonus Eris E66 is an active MTM (midwoofer-tweeter-midwoofer) nearfield monitor that offers improved on/off-axis response and spatial resolution, as well as expanded and highly accurate frequency response with the widest stereo field available in their class. The result is a more consistent listening experience, smoother frequency response, and an ultra-wide, detailed stereo soundstage.


Conventional 2-way designs can cause significant early reflections from their surrounding environment, and the E66 overcomes this by positioning a 1.25-inch, silk dome high-frequency driver between two 6.5-inch midrange drivers. The two smaller woofers work in parallel to partially contain the dispersion of the tweeter, minimizing phase displacement.

The E66’s two midrange drivers cover the same frequency range, and the drivers are placed so that their acoustic centers are less than one wavelength apart for any of the frequencies they reproduce. As a result, the combined signal of both drivers propagates forward like a single waveform and makes the comparatively small midrange drivers in the E66 behave like a single, larger driver. This mutual coupling provides a highly dynamic output in a compact footprint.

Sound waves radiating from the two components in a conventional speaker design can interfere with one another, creating peaks at some frequencies and dips at others, and these will vary depending on where the listener is relative to the speaker. In an MTM configuration, component interference and the sonic inconsistencies that go with it are minimized. This affords listeners an ultra-wide sweet spot and a more consistent listening experience on- and off-axis.

Transparent and Cohesive Sound

The E66 utilizes custom-woven Kevlar® low-frequency drivers to provide a more constant dispersion pattern throughout the frequency range, resulting in less time-smeared audio and cleaner overall sound. The weave and nature of the dual Kevlar woofers also helps break up reflected energy, so fewer delayed reflections reach the listener’s ear. In conjunction with the MTM configuration, this works to create a transparent, cohesive sound.

Horizontal or Vertical

Many MTM configurations must be arrayed vertically, because vertical placement provides a clear, interference-free midrange and treble reproduction to either side, expanding the sweet spot. By bringing the midrange drivers closer together and raising the high-frequency driver, the E66 is able to perform optimally in both orientations. So, the E66 lets you position your speaker the way that works best for you.

Making Connections

Eris-series studio monitors offer extensive acoustic tuning controls for producers that deal with a wide variety of genres or work in more than one location. 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 subwoofer into your monitor setup.

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 E66 provides balanced XLR, balanced ¼” TRS, and unbalanced RCA line-level inputs. With this selection, you’ll have no problem hooking your Eris speakers up with virtually any line-level source.

PreSonus Eris E66 Features:

  • Components and construction:
    • Dual 6.5", custom-woven Kevlar® LF/midrange drivers produce dynamic, size-defying bass output
    • 1.25", silk-dome HF driver ensures smooth high-frequency performance that never fatigues the ears
    • Balanced XLR, balanced ¼" TRS, and unbalanced RCA inputs provide flexibility for seamless integration into any environment
  • User controls:
    • Acoustic tuning controls help to compensate for room anomalies, providing a consistent frequency response customized for your mix environment
    • Continuously variable HF and MF controls (-6 to +6 dB)
    • Low-cut filter (flat, 80 Hz, 100 Hz)
    • Acoustic Space settings (Flat, -2 dB, -4 dB) compensates for room placement
  • Power and safety:
    • 90W/140W Class A/B bi-amplification for an open, clear sound
    • RF interference, output-current limiting, over-temperature, and subsonic filter protection
    • Amplifier “soft start” feature eliminates popping on power-up
    • Internal power supply with IEC connector

PreSonus Eris E66 Specifications:

  • Inputs:
    • 1 - Balanced XLR
    • 1 - Balanced 1/4" TRS
    • 1- Balanced Unbalanced RCA
  • Performance:
    • Frequency Response: 55 Hz - 22 kHz
    • Crossover Frequency: 2.9 kHz
    • LF Amplifier Power: 50W
    • HF Amplifier Power: 35W
    • Peak SPL (@ 1 meter): 103 dB
    • LF Driver: Dual 4.5" Kevlar®
    • HF Driver: 1.25" silk dome
    • Input Impedance: 10 kOhm
  • 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
  • Protection:
    • RF interference
    • Output-current limiting
    • Over-temperature
    • Turn-on/off transient
    • Subsonic filter
    • External mains fuse
  • Power:
    • 100-120V ~ 50/60 Hz
    • 220-240V ~ 50/60 Hz
  • Cabinet:
    • Vinyl-laminated, medium-density fiberboard
  • Physical:
    • Width: 14.3" (365 mm)
    • Depth: 7" (180 mm)
    • Height: 7" (180 mm)
    • Weight: 11.9 lbs. (5.4 kg)

WARNING: Cancer and Reproductive Harm -

To be the first to review this item, click here.

Add to Cart

We're sorry, only of this item available

Call a Sales Pro at 800-356-5844 for more information