Martin Logan Motion 15i Bookshelf Speakers & Dynamo 400 Subwoofer

Mint condition Must sell Serious inquiries only Cash only local only A top-notch bookshelf speaker The MartinLogan Motion 15i takes up relatively little space, and delivers a disproportionately large sound. This upgraded successor to the popular Motion 15 adds a drive-stabilizing inverted dust cap and stiffened motor suspension for the woofer. Because details matter. A solid mid- and low-frequency foundation MartinLogan uses aluminum cones for their unique blend of lightness and rigidity. This speaker's 5-1/4" woofer blends warm and neutral midrange frequencies with surprisingly solid low end. The rear-firing bass port helps efficiently enhance bass response without adding distortion. Detail and precision from the Folded Motion™ tweeter Perched above the Motion 15i's woofer is the source of this speaker's impressive high-frequency performance — MartinLogan's acclaimed Folded Motion tweeter. Its pleated diaphragm works similarly to an accordion by "squeezing" air to create sound. Because it requires almost 90% less excursion than the typical 1" dome tweeter, response time and distortion are drastically reduced. The diaphragm's increased surface area also provides wide, yet controlled sound dispersion to create a realistic and highly accurate soundstage. Unique crossover network Motion Series speakers feature proprietary Vojtko™ crossovers, named after MartinLogan's chief audio technologist, Joe Vojtko. "A Vojtko crossover isn't so much a set of design requirements as it is a philosophy," the company explains. Each speaker's drivers are carefully selected or designed to operate within an intentional frequency range and specific performance parameters. That allows the crossover networks — built from high-quality capacitors and resistors — to be clean and uncomplicated. Part of a complete MartinLogan surround sound system The MartinLogan Motion Series features an array of speakers that are voice-matched for compatibility in an immersive surround sound system: floor-standing speakers for front left and right channels bookshelf speakers for front, rear, or surround channels center channel speakers for clear dialogue Dolby Atmos® toppers and surround speakers for effects channels Product highlights: 1" x 1.4" Folded Motion® tweeter for exceptional detail with low distortion 5-1/4" aluminum-cone woofer with cast basket bass-reflex (ported) cabinet with rear-firing port proprietary high-performance Vojtko™ crossover network frequency response: 60-25,000 Hz (±3dB) sensitivity: 92 dB nominal impedance: 5 ohms recommended amplifier power: 20-200 watts fabric-wrapped magnetic grille 5-way binding post speaker terminals Dimensions and warranty: 6-13/16"W x 11-7/16"H x 9-1/2"D weight: 12 lbs. Martin Logan Dynamo 400 A healthy dose of MartinLogan bass MartinLogan's Dynamo 400 features a high-excursion 8" woofer driven by a highly efficient built-in Class D amplifier. This is the entry-level sub in MartinLogan's 2018 Dynamo lineup, but it still delivers punchy bass down to 30 Hz — that's deep enough to lend serious kick to movie and TV show special effects. Product highlights: frequency response: 30-200 Hz (±3dB) built-in amplifier delivers 75 watts of continuous power (150 watts peak) 8" high-excursion polypropylene woofer with an inverted surround bass-reflex (ported) cabinet with down-firing woofer and slot port continuously variable low-pass 35-120 Hz crossover (back panel) level control (back panel) auto on/off switch (back panel) phase switch (back panel) RCA stereo/LFE line-level input speaker-level inputs satin black finish 13-5/16"W x 15-1/4"H x 13-3/4"D weight: 28.5 lbs.