Get True And Uncompromising Sound That Is Both Smooth And Wide – The PreSonus Eris E44 High-Definition Active MTM Nearfield MonitorThe Eris E44 and E66 deliver 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.StereophonicConventional 2-way designs can cause significant early reflections from their surrounding environment. The E44 and E66 overcome this by positioning a 1.25-inch, silk dome high-frequency driver between two 4.5-inch (E44) or 6.5-inch (E66) midrange drivers. The two smaller woofers work in parallel to partially contain the dispersion of the tweeter, minimizing phase displacement. The result is incredibly detailed stereo imaging.Seeing DoubleBoth the E44 and the E66 feature two midrange drivers that cover the same frequency range. 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. This makes the comparatively small midrange drivers in the E44 and E66 behave like a single, larger driver. This mutual coupling provides a highly dynamic output in a compact footprint.Consistent ListeningSound 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 SoundThe E44 and E66 utilize 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 YouMany 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 and E66 are able to perform optimally in both orientations. So, like all Eris speakers, the E44 and E66 let you position your speaker the way that works best for you.You’re In ControlToday’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 ConnectionsWith 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 and E66 provide balanced XLR, balanced ” TRS, and unbalanced RCA.SPECIFICATIONSComponents And ConstructionDual 4.5-inch, custom-woven Kevlar LF/midrange drivers produce dynamic, size-defying bass output1.25-inch, silk-dome HF driver ensures smooth high-frequency performance that is never fatiguing to the earsBalanced XLR, balanced -inch TRS, and unbalanced RCA inputs provide flexibility for seamless integration into any environmentUser ControlsAcoustic tuning controls help to compensate for room anomalies, providing a consistent frequency response customized for your mix environmentContinuously 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 placementPower And Safety90W/140W Class A/B bi-amplification for an open, clear soundRF interference, output-current limiting, over-temperature, and subsonic filter protectionAmplifier soft start feature eliminates popping on power-upInternal power supply with IEC connectorInputs1- Balanced XLR1- Balanced TRS1- Unbalanced RCAPerformanceFrequency Response: 55 Hz 22 kHzCrossover Frequency: 2.9 kHzLF Amplifier Power: 50WHF Amplifier Power: 35WPeak SPL (@ 1 meter): 103 dBLF Driver: Dual 4.5 KevlarHF Driver: 1.25 silk domeInput Impedance: 10 kUser Controls Volume Range: A-type taperMF Control: Variable (-6 to +6 dB)HF Control: Variable (-6 to +6 dB)Low Cut Flat, 80 Hz, 100 HzAcoustic Space: Flat, -2 dB, -4 dBProtectionRF interferenceOutput-current limitingOver-temperatureTurn-on/off transientSubsonic filterExternal mains fusePower100-120V 50/60 HzCabinetVinyl-laminated, medium-density fiberboard Vinyl-laminated, medium-density fiberboardManufacturer:PreSonus AudioModel:ERIS E44SKU:I386850-N-0-WHXAUPC: 673454004087We are Chuck Levin’s Washington Music CenterSince 1958, Chuck Levins Washington Music Center has been the trusted destination for musicians and audio professionals across Maryland, Virginia, and Washington, D.C. Family-owned and operated, our legendary music store delivers Everything in Musicfrom instruments and recording gear to pro audio, rentals, and repair services.Our team of musicians and industry experts lives and breathes gear, helping you build the perfect setup for your next performance, studio session, or installation. As an authorized dealer for top brands, we also offer our award-winning CHUCKSCLUSIVE lineexclusive, limited-edition instruments and collaborations recognized with the NAMM Top 100 Dealer Innovation Award for redefining what a music retail experience can be.Chuck Levins isnt just a storeits a community built by players, engineers, and creators who share a lifelong passion for sound. Stop by our legendary Wheaton, MD showroom or contact us anytime for expert advice, product questions, or the best possible deal on your next piece of gear.