If you go back to July 2, 2019, you will find that this writer favorably reviewed a pair of the MartinLogan Motion 4i, and small, compact bookshelf/desktop speaker. Martin Logan 60XTi measurements from NRC here Bowers 702 S2 measurements from Stereophile here Unfortunately two different measurement techniques, so it's not an exact apples-to-apples comparison. The Motion series is a departure from MartinLogan’s traditional offerings in that this line of speakers does not utilize electrostatic drivers. The current Motion Series of non-ESL (dynamic-driver) speakers from ML encompasses some thirteen models ranging from bookshelf to floorstander, with the 60XT the premium offering. Therefore, some portion of the tweeter’s passband has to be attenuated. I mean you have replaced a very short strap with a long piece of wire. Quick changes and A-B testing are useful but not definitive. Again, different brands of cables affect the speaker sound differently. Martin Logan Motion 40 Tower Speakers As I mentioned earlier, when you can look at speaker options between $500 and $1,000 it opens up the opportunity to explore different speaker designs. fraudulent), but I will say that it’s engineering provenance is “dubious” at best. This piece has a bass line that is truly spectacular. Each pair of the four connection are strapped together but are separable via metal straps for bi-amping, (or bi-wiring if one believes in such a thing). Astrud Gilberto’s vocal on The Girl From Ipanema from the “Getz/Gilberto” album on Verve (Catalog Number 80020749-02) has just the right balance with the guitar of her husband and Stan Getz’ tenor Saxophone has never sounded better. He is a great story teller and a generally nice gent. De MartinLogan Motion 40i is geen revolutie, maar een evolutie. So, if Mr. Vandersteen or anyone else hear’s an improvement, it’s because they like a certain portion of the high frequency spectrum being reduced in volume. The Motion 20’s top panel gently slopes down from front to rear. Get your old music out with these beauties because you will hear things you’ve never heard before. I had breakfast with him at AXPONA once. As length and frequency increase, wire characteristics become a larger and larger component of a system’s overall performance. Going up the spectrum the aluminum coned midrange is clean and well balanced. Same here...passed them on to a family member and he is absolutely thrilled with the Requests. If you like that better, well, that’s up to you. That might just cinch the deal. all cables are lossy, so in reality, all cables do something poorly if they change the sound. Still listening to my own recordings, made with a pair of Sony C37P FET microphones mounted on a stereo T-bar about 8 inches apart at a 45° angle to each other and about 10 feet over the conductor’s head and slightly behind him, the listener can close his eyes and point to every instrument in the ensemble. There may be some cheaper cable that I would like just as well, possibly even better, but I don't know where I would find these among the multitude of choices, because measurements unfortunately do not tell the whole story.Â, Like I said. And secondly, the fact that one cable is better at, say,  rejecting RF interference than the other is not part of the equation? As far as cable is concerned, it’s like upping the gauge to the wire, but if you are splitting the woofer and tweeter by removing the shorting straps at the speakers and connecting them back together at the amplifier, all you are really doing is moving the place where the woofer and tweeter are joined from the back of the speaker with just a very short, low-resistance strap to a long, higher resistance cable. phase effects:Â, http://www.empiricalaudio.com/computer-audio/audio-faqs/bi-wiring-speaker-cables, and IM effects: https://www.qacoustics.co.uk/blog/2016/06/08/bi-wiring-speakers-exploration-benefits/, Biwiring is in no way essential, but if I have speakers with dual terminals and biwire cables, I will definitely use them.Â. Both the 5.5” midrange and the two 6.5” woofers have an aluminum cone in a non-symmetrical chamber format and a cast polymer basket with a rigid, structured dust cap to reduce cone breakup and any modal resonances. There is a decorative strip between the lower part of the cabinet containing the two 6.5”(16.5cm) woofers and the upper part of the cabinet containing the single 5.5”(14cm) midrange unit and the 1.25 X 2.4”(3.2 X 6.1cm) AMT tweeter. 1 hour ago, The Computer Audiophile said: On 12/20/2019 at 8:02 PM, audiobomber said: On 12/30/2019 at 6:37 AM, audiobomber said: bi-wiring if one believes in such a thing", https://www.qacoustics.co.uk/blog/2016/06/08/bi-wiring-speakers-exploration-benefits/. It crosses over at a slightly lower frequency but the result is the same – effortless ESL-like upper midrange clarity and high frequency extension.Â. The Motion 40i retails for US$1199.99 each. Remember, wire is a passive component. The ‘XT’ stands for ‘extreme’ and the 35XT lives up to that moniker with a bigger 16.5cm aluminium cone driver (up from 13cm in the 15 mo… Martin Logan, the company best known for it’s electrostatic speaker designs, is now a subsidiary of Paradigm. There is an exception to that. The diaphragm in the tweeter consists of a pleated Polyamide sheet arranged so that the pleated area is facing the listener. Instead, the Motion series is a cone-based speaker system that employs Oskar Heil’s “Air Motion Transformer” (AMT) technology for it’s high-frequency driver unit. I have 12ga zip wire, Linn K400 single and biwire runs and Cardas Neutral Reference bi-wires. They’re that pretty and surprisingly inconspicuous! I assume that you have not tried, and are therefore working with limited information. I listen for flaws. A metal grille attaches to the baffle with magnets, and has a set of indented perforations in … The major point of my review was the AMT tweeter used in this diminutive speaker. If you really want the sound of Martin Logan’s electrostats, but want something in a smaller form factor, then look no further, go out and buy a pair of these. Small but perfectly formed, it was the musical performance that really impressed: here was a hybrid AMT/dynamic speaker that really worked, a miniature that really delivered – a rare beast indeed. We ran them in over several nights, though we don’t think they were fresh from the box, given they immediately relished running at high levels, where beats punched out of the lower aluminium drivers with powerful punch and terrific tautness, kick drums having no smear, no un-natural overhang whatsoever. Dit zijn niet de befaamde elektrostaten van het Amerikaanse merk, maar wat meer traditionele speakers. Meanwhile, Martin Logan Motion 40 is a step higher than Martin Logan Motion 20, and is the middle model of the series. I was replacing my beloved MartinLogan Aeon-i electrostatic hybrid speakers with these and found them thin and forward in the midrange with a slightly nasal quality. A phone conversation with Devin Zell of MartinLogan assured me that whatever run-in these speakers received at the factory, they undoubtedly needed more. However, it's fairly safe to say that Klipsch RP-8000F are more popular speakers, based on their 100+ reviews. Yes, those are moving-coil woofers. De Amerikanen hebben met name het uiterlijk verbeterd, wat mijn bescheiden mening is overigens. Bi-amping with a low level adjustable crossover before the amplifiers, of course, is a different kettle of fish altogether.Â.   That means that the longish cable runs add significant resistance to the overall impedance characteristics of the amp/speaker interface. For this review, we are interested in the next to the largest floor stander, the Motion 40i.Â. This will affect the frequency response curve of the speaker by attenuating the signal less. Readers will remember that several months ago this reviewer wrote about the company’s bookshelf Motion™ 4i speakers. One advantage of Integrated amplifiers is no interconnects. It is commonly stated that long interconnects with short speaker cables is preferred over the opposite. Martin Logan speakers would definitely rate a look if I were shopping. For instance, if you prefer the bass of a solid-state amp, you might want to put that on the woofer, but if you prefer the sweet open high-end often attributed to tubes, then you might want to use a good-sounding tube amp on the tweeter (perhaps even a low wattage SET). The other characteristic they have is a deeper soundstage compared to the Linn K400 bi-wires and generic 12ga cables I own. The sound also changed when I single-wired with jumpers on the tweeters vs. jumpers on the woofers. My opinion is that using cables, either interconnects or speaker cables as a fixed “tone control” is wrong-headed.Â. As far as cable is concerned, it’s like upping the gauge to the wire, but if you are splitting the woofer and tweeter by removing the shorting straps at the speakers and connecting them back together at the amplifier, all you are really doing is moving the place where the woofer and tweeter are joined from the back of the speaker with just a very short, low-resistance strap to a long, higher resistance cable. On my own recording with the “San Jose California Symphony Orchestra” under Georg Cleve of Ravel’s Daphnis et Chloe ballet, the triangle floating over the left side of the orchestra has a clarity and an other-worldly etherial quality that I have rarely heard on a speaker. Back to Anne-Sophie Mutter’s violin on the Williams film soundtrack album, it is as sweet as a mother’s kiss with soaring highs and resinous bowing that sounds utterly realistic. 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