Maybe it’s simply because the D’Appolito format is visually so easy to identify? StudioLive Series III Ecosystem Learn how the PreSonus StudioLive Series III Mixers can help you build a system that is tailored to your needs today but readily expandable as your needs evolve over time. The amplifier technology appears to be conventional Class A/B, with traditional linear power supplies. PreSonus Eris E4.5 Pair High-Definition 2-Way 4.5" Active Home/Studio Monitor Set w/Stereo and TRS Male/Male Instrument Cable Kit. The new Electro Harmonix ‘ 80s Attack Decay is a bit of a cult classic and so collectors go squirrely for them. The E44 was definitely at its best on simple material with relatively limited low-frequency energy, although even then, I was slightly disappointed by the stereo imaging. Slight tonal coloration and a degree of low-frequency congestion. PreSonus produces three different mid/nearfield monitor ranges incorporating various interesting features like co-axial drivers (Sceptre) and ribbon tweeters (R-Series), but its most traditional design, Eris, is actually its most successful, and sports a slotted front port, woven woofer and silk dome tweeter. It seems that from a practical way of looking at dual monitors, that it should have twice the bass response as a single woofer design..? Now the New York pedal company has bought it back, updated for 20 And then if you factor in a modest musical dynamic range of, say, 60dB (which in ratio terms is 1000:1), it’s pretty obvious that the enclosure walls don’t have to move much to make a significant contribution to the sound of a speaker. One of those niches is nearfield monitoring, where PreSonus have a range of active speakers that covers all the entry-level to lower mid-range price points; the latest entries in the range are the Eris E44 and E66 reviewed here. First impressions were positive. The LF cutoff options can be used to enable the E44 and E66 either to integrate with a subwoofer or, at a stretch, to mimic smaller monitors with more restricted low-frequency bandwidth — although the result of adding the 12dB/octave slope of the filters to the 24dB/octave slope inherent in the reflex-loaded E44 and E66 will result in a compound system characteristic that won’t really bear much resemblance to many small monitors.Diagram 1. The significance of enclosure panel resonance can be appreciated simply by comparing the radiating area of, say, a 180mm bass/mid driver with the potential radiating area of the cabinet walls enclosing it. SOT....I've always wondered about monitors with dual woofers. www.meridian-audio.info/public/m2%5B1166%5D.pdf, https://musicandmiscellany.com/2016/06/21/have-we-forgotten-the-enclosure/, Win! So, used in landscape mode, the E44 will generate a strong reflection from the desk because its vertical dispersion is wide. Eris Series E44 and E66 Owner’s Manual 1 Overview 1.1 Introduction Thank you for purchasing the PreSonus Eris E44/E66 studio monitors. The Eris® E5 XT 2-way studio monitors offer signature Eris acoustic tuning, diverse connectivity options, and stellar audio quality—adding an EBM waveguide for wider high-frequency dispersion and a larger, ported enclosure for deeper lows. Im worried about amount of e66 bass ... how is e66's bass comparing to hs8 or rokits, or eris 8 or jbl lsr 308, or focal alpha ? 1x PreSonus Eris E66 Active MTM Near Field Monitor Ultra-wide Stereo Soundstage 5 out of 5 stars (4) 4 product ratings - 1x PreSonus Eris E66 Active MTM Near Field Monitor Ultra-wide Stereo Soundstage Hey there, and thanks so much for checking out our Presonus Eris E44 MTM Studio Monitors review. Whether you use Mac®, Windows®, or iOS®, we have an interface that fits your application and budget. The E44 and E66 active monitors feature a nested MTM (midwoofer-tweeter-midwoofer) design that delivers accurate response, expanded frequency range, and the widest stereo field available in their class. Like the E44, the E66 also displays a sensibly neutral tonal balance that on a basic level enables reasonable confidence about the chances of a mix transferring. The E66 is by no means unusual at its price point in this respect, but simply reflects that being price-competitive means compromises are made. But again, the vast majority of monitors around the E66 price point display their own foibles and character, so perhaps a little enclosure coloration isn’t a deal-breaker in the grand scheme of things. Back when the company announced them in October 2015, the press release highlighted the Eris E44’s extremely compact size and smooth, extra-wide sweet spot. Intro to the MTM design and how its used in the iLoud and PreSonus models. We’ll see how that plays out in a paragraph or two. There is a Holiday sale going on for the PreSonus Eris E44 and E66 more details on the PreSonus web site. The PreSonus Eris series are all designed to be professional near-field monitors used for making critical mixes for audio or film/video production, and in that intended usage the Eris 3.5's shine. PreSonus Eris E66 Dual 6.5 inch Powered Studio Monitor 140W 2-way Powered Studio Monitor, with Dual 6.5" LF/MF Drivers and 1.25" HF Driver (each) $309.95each. I’ll return to the implications of the D’Appolito format a little later. I can think of quite a few engineers who’d be perhaps more deserving of having a speaker technique named after them, but I fear they are likely to remain obscure (so no ‘Harwood enclosure’, or ‘Walker electrostatic’ then). 90. You may login with either your assigned username or your e-mail address. StudioLive Series III Ecosystem Learn how the PreSonus StudioLive Series III Mixers can help you build a system that is tailored to your needs today but readily expandable as your needs evolve over time. Speakers get bigger fundamentally in order that they can reproduce audio down to a lower frequency at a higher volume level. (As a youthful hi-fi speaker engineer at Mordaunt-Short in the 1980s, I quickly discovered how difficult it was to make big, floor-standing speakers sound right, often for this very reason.) The blue curve in each case is the on-axis frequency response (on-axis means the speaker is pointing directly at the microphone). When you buy products through links across our site, we may earn an affiliate commission. In Europe's biggest music store you'll find a huge range of instruments as well as studio-, light-and sound technology.We have the most popular brands, low-priced alternatives, and many free extras for musicians. Both the E44 and E66 display competent-looking frequency responses that raise no obvious questions. Whether you use Mac®, Windows®, or iOS®, we have an interface that fits your application and budget. The workstation does, however, incorporate a reasonably large desk, and any reflection from that will be pretty strong and quite close in time to the direct sound. Is the frequency response of the Eris MTM monitors (e44 & e66) measured at -3dB or -10dB? PreSonus have grown from a start-up in 1995 to carving out a significant presence across multiple pro-audio niches. Eris® E44 Active MTM (D’Appolito) monitors deliver smooth on- and off-axis response with more dynamic output than conventional two-way studio monitor configurations, thanks to their MTM (midwoofer-tweeter-midwoofer) design, which features a 1.25-inch silk dome high-frequency driver nested between two 4.5-inch woven composite low-frequency drivers. For example (because there are probably others), the Meridian M2, a British hi-fi speaker designed by Bob Stuart (these days one of the brains behind the MQA audio codec — see last month’s issue), pre-dates the D’Appolito AES paper by three years but was undoubtedly a ‘D’Appolito format’ design. There are no faults as problems in design or similar, only that they are a Rokit sounding monitor (crappy monitors). Since 2001 Phil has worked as a freelance consultant and writer across both the pro and consumer audio sectors. The enclosures themselves are simple, vinyl -covered, unbraced MDF boxes, finished on the front by decorative plastic mouldings. The D’Appolito format is no different. Diagrams 3 and 4 each show three frequency response curves (from 300Hz to 20kHz). L'image stéréo ultra-large permise par sa conception MTM/d'Appolito en fait une solution idéale pour tous ceux qui ont besoin de la meilleure résolution spatiale de sa catégorie. asked Feb 26 in Sceptre, Eris, R-Series by lyndsaydaltoe ( 530 points) eris The MTM format also often goes by the name D’Appolito format, after Joseph D’Appolito who, back in 1983, presented a technical paper to an Audio Engineering Society Conference in New York describing and analysing the dispersion characteristics that result from the format. With a conventional two-way speaker, where an HF driver is adjacent to a single LF/MF driver with a crossover frequency between 2kHz and 3kHz, there will be an asymmetry in its vertical dispersion (or horizontal dispersion if the monitor is oriented in landscape mode). Driver's License or state ID. This is that their HF drivers are not located on the centre line between the twin LF/MF drivers but displaced laterally (well, laterally in portrait orientation). All contents copyright © SOS Publications Group and/or its licensors, 1985-2021. Overview / Review / Demo: iLoud MTM and PreSonus Eris E66. 4.1 out of 5 stars 4. The ratio is typically at least 30:1 in favour of the cabinet walls. Active MTM Near Field Monitors Featuring a large silk-dome tweeter, centered between two smaller woofers covering the same frequency range, the Eris® E66 offers improved off-axis response and spatial resolution. I think this is quite a valuable characteristic for entry-level products such as the E44 and E66, which are most likely to be used in smaller spaces. The contents of this article are subject to worldwide copyright protection and reproduction in whole or part, whether mechanical or electronic, is expressly forbidden without the prior written consent of the Publishers. 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