Presonus Eris E44 Active MTM Nearfield Monitor (Single)

Main Features

• Nested MTM design with dual Kevlar® drivers provides smooth on- and off-axis response with more dynamic output than conventional two-way studio monitor configurations
• MTM design minimises phase displacement and leads to improved spatial resolution and a much wider sweet spot
• Dual 4.5-inch, custom-woven Kevlar LF/midrange drivers produce dynamic, size-defying bass output
• 1.25-inch, silk-dome HF driver ensures smooth high-frequency performance that is never fatiguing to the ears
• 90W Class A/B bi-amplification for an open, clear sound, and less fatiguing listening experience
• Acoustic tuning controls help to compensate for room anomalies, providing a consistent frequency response customised for your mix environment
• Balanced XLR, balanced 1/4 inch TRS, and unbalanced RCA inputs provide flexibility for seamless integration into any environment

The Presonus Eris E44 active MTM near-field studio monitors deliver accurate response, expanded frequency range, and the widest stereo field available in their class.


Smooth and Wide
The Eris E44 delivers an expanded and highly accurate frequency response and the widest stereo field available in their class. Their nested Midwoofer-Tweeter-Midwoofer (MTM, also known as 'D'Appolito') configuration offers improved off-axis response and spatial resolution. The result is a more consistent listening experience, smoother frequency response, and an ultra-wide, detailed stereo soundstage.

Stereophonic
Conventional 2-way designs can cause significant early reflections from their surrounding environment. The E44 overcomes this by positioning a 1.25-inch, silk dome high-frequency driver between two 4.5-inch midrange drivers. The two smaller woofers work in parallel to partially contain the dispersion of the tweeter, minimising phase displacement. The result is incredibly detailed stereo imaging.

Seeing Double
The E44 features two midrange drivers that cover the same frequency range. The drivers are placed so that their acoustic centres 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. This makes the comparatively small midrange drivers in the E44 behave like a single, larger driver. This mutual coupling provides a highly dynamic output in a compact footprint.

Consistent Listening
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 minimised. This affords listeners an ultra-wide sweet spot and a more consistent listening experience on- and off-axis.

Transparent and Cohesive Sound
The E44 utilises custom-woven Kevlar® low-frequency drivers. This provides 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—It's Up to You
Many MTM configurations must be arrayed vertically, rather than horizontally, 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 E44 is able to perform optimally in both orientations. So, like all Eris speakers, the lets you position your speaker the way that works best for you.

You're in Control
Today's music producers deal with a wide variety of musical genres and often work in more than one location. 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 subwoofer into your monitor setup.

Making Connections
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 E44 provides balanced XLR, balanced 1/4 inch 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.

Accuracy Defined
Like all PreSonus studio monitors, the Eris E44 offers consistent, accurate listening. The ultra-wide stereo image afforded by their MTM design, makes them an ideal solution for any one who requires best-in-class spatial resolution.


Eris E44 Specifications (Per speaker)

Inputs
1- Balanced XLR
1- Balanced 1/4 TRS
1- 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 inch Kevlar®
HF Driver: 1.25 inch silk dome
Input Impedance: 10 k ohms

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

Cabinet
Vinyl-laminated, medium-density fiberboard
Width: 14.3 inch (365 mm)
Depth: 7 inch (180 mm)
Height: 7 inch (180 mm)
Weight: 11.9 lbs (5.4 kg)