Martin logan motion fx review12/17/2023 The sub’s tiny (1 cubic foot) cabinet is nicely finished in matte black. A grille is included to cover the 10” driver. The 700w normally fires downward, but if you need to put it in a cabinet, the flick of a screwdriver converts it to a front-firer. It’s not only compatible with a wireless system, the transmitter is included at no cost. The Motion SLM has a claimed sensitivity of 94dB/W/m, which should make it easy to drive to loud levels, and especially for modestly powered home-theater receivers.Īs with the Motion SLM, MartinLogan has thought of everything for setting up the Dynamo 700w subwoofer ($695). The tweeter is crossed over to the woofers at 2600Hz. To extend the speaker’s bass response, the modest 4” midrange-woofers use the air trapped in the enclosure as a spring to push the 4” passive radiators, effectively doubling the surface area devoted to reproducing the bass frequencies. The cabinet of the Motion SLM is sealed - no ports. Another advantage is that it minimizes the off-axis sound, which is particularly useful for speakers mounted on walls, where wall bounce is a concern. The advantage of this is that the SLM should sound the same whether placed horizontally or vertically - which is beneficial for the timbral matching of all speakers in a surround-sound array. Much like MartinLogan’s electrostatic speakers, the FMT is said to have lightning-fast transient response superior to dome tweeters.Īnother interesting aspect of the FMT is its controlled dispersion through horizontal and vertical ranges of 80 degrees. According to MartinLogan, if this ribbon were unfolded and laid out flat, it would be seen to have eight times the radiating area of a conventional 1” dome tweeter. The tweeter works by squeezing air between its folds to create soundwaves. The FMT is a ribbon of thin film, folded accordion-style to fit into a 1” x 1.4” space. Remove this to see, at the center, the Folded Motion Tweeter above and below this are a 4” paper-cone midrange-woofer and a passive 4” paper-cone radiator. On the rear is a single pair of spring-push terminals on the front, the grille is held in place magnetically. It has a high-gloss black cabinet with plastic back and sides and aluminum front. Outwardly, the Motion SLM looks similar to Definitive Technology’s superslim Mythos XTR-50, which I reviewed a while back. All three methods were easy to implement - it took just minutes to set up all five speakers. I used all three mounting methods in my home theater: front left and right speakers on the wall, brackets for the center-channel, and stands for the left and right surrounds. These have leveling bolts that allow you to aim the SLM up or down, depending on where it’s placed. For horizontal use of the SLM as a center-channel speaker, two brackets attach to the back. Or the SLM can be supported by a short stand, which also attaches to the back of the speaker. For wall mounting, a thin bracket is provided with two mounting points that fit the keyholes on the speaker’s rear panel. There’s a reason for the big box, though - MartinLogan includes everything you need to mount the SLM (pronounced slim) any way you choose, including screws and drywall anchors. The boxes for the five speakers took up a lot of space in my storage room. For this review, MartinLogan sent me a 5.1-channel system based on the Motion SLM, a thin-profile on-wall speaker.Īlthough the Motion SLM ($499.95 USD each) measures 25.3”L x 6.4”W by only 1.83” deep, the box it comes in is quite a bit bigger: 37”L x 12”W x 8”D. What sets the Motions apart from most entry-level speakers is their tweeter, MartinLogan’s Folded Motion Tweeter (FMT), said to sound similar to electrostatic drivers. MartinLogan recently introduced its Motion line of entry-level models, with traditional cabinets and conventional cone midrange-woofers. However, they’re expensive to make - it’ll cost you about $2000 USD to take home a pair of the cheapest ESLs made by MartinLogan. To the non-audiophile, electrostatic speakers simply look cool. Although the design staff is still based in Lawrence, much of the manufacturing has been moved to Paradigm’s facility in Mississauga, Ontario, Canada.Įlectrostatic (ESL) speakers are renowned for the lightning-fast transients that audiophiles crave. In 2005, ShoreView Industries, a private-equity firm that also owns a stake in Paradigm, bought MartinLogan. Founded by Gayle Martin Sanders and Ron Logan Sutherland, the company is best known for their extensive line of electrostatic speakers. MartinLogan is a loudspeaker manufacturer based in Lawrence, Kansas.
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