The Depth series is the culmination of MartinLogansdecades of experience in designing high performancesubwoofers. Depth subwoofers are meticulouslyengineered to deliver powerful bass as cleanly aspossible, making them an ideal choice for both dedicated2 channel systems, home theater, or anything in between.Depth Series subwoofers are designed to blend uncompromising low frequency performancewith timeless, luxury design. Starting with a massively overbuilt cabinet, expertly sculpted toachieve a sleek and elegant look, every aspect of the Depth Series has been carefully craftedinto a perfect fusion of both form and function.The force-canceling dual woofer layout all but eliminates performance-robbing cabinetresonances, allowing the custom 12″ (Depth 212) or 15″ (Depth 215) Carbon Aerocore woofersto deliver pure bass energy without coloration. The system is backed by high power, ultraprecise amplification controlled by a class leading 64-bit Vojtko DSP engine. All of this helpsDepth achieve massive dynamic output, low distortion, and exceptional musicality.Its not only about what you can see and hear though, its also about what you cant. Take theamplifier for example, which is completely concealed within the sleek back of the cabinet. Notonly does it look clean, but it also allowed our engineers to design a convection cooling systemto help keep the amplifier running at optimal levels. The aluminum trim pieces on the back edgeof the sub not only add a touch of design flair, but they are both functional heatsinks and airintakes for the cooling system. Depth subwoofers prove that high performance and high styledo not have to be mutually exclusive.
Balanced Force Woofer System
Because of the high levels of force necessary to produce bass frequencies, the subwoofer cabinet itself canvibrate or resonate, which can blur or color the sound. This is why speaker cabinets must be strong and rigid tocounteract these forces for the best sound quality. Depth subwoofers take this concept to the next level by featuringour signature distortion-reducing BalancedForce woofer topology. The dual active 12″ woofers on Depth 212 anddual active 15″ woofers on Depth 215 are arranged so they operate in exact opposition from one another. Theequal and opposite forces of the woofers effectively cancel out the energy that would typically be transferred intothe cabinet. This design cuts out the blur, smearing, and distortion caused by cabinet resonance, leaving only pure,
articulate bass energy. Not only does this sound noticeably better, but the lower distortion means Depth subwoofersare easier to listen to at all volumes. With such low distortion, Depth subwoofers are an ideal choice to pair withreference grade loudspeakers for the ultimate audio experience.
Carbon Aerocore Woofers
To achieve such detailed and articulate bass, our engineers designed a very special cone material. To preventunwanted cone resonances and ringing, the tri-layer Carbon Aerocore woofers on Depth series uses layers ofdissimilar materials to dampen and strengthen the cone for maximum fidelity. The outer layer is made of ultra-rigidcarbon fiber, known for its extreme strength and light weight. The middle layer is a PMI foam core, an extremely
lightweight cross-linked rigid structural foam material chosen for its impressive strength and incredible light weight.The back layer is composed of fiberglass, further dampening the cone without adding appreciable weight. Theresult is a cone that is both incredibly strong and stable, yet extremely lightweight and articulate. Able to play themost nuanced passages with precision and authority. Afterall, what good is power without control? (Note – orpower without control is meaningless.) To further enhance both performance and reliability, Depths CarbonAerocore woofers are triple vented with under spider frame venting, vented voice coils, and vented pole pieces.These high performance woofers also use dual copper shorting rings for vanishingly low distortion.
Up To 4,400W Of Reference Grade Amplification
Depth 212 features a 2,200W Dynamic Peak (1,100W RMS) Class-D amplifier while Depth 215 features dualamplifiers for a staggering total of 4,400W Dynamic Peak (2,200W RMS) power. Dont make assumptionsbased on power, Depth subwoofers are not only about playing loud. These massive power reserves not onlyallow Depth subwoofers to achieve high output capability with low distortion, but also the precise delivery ofbass, exactly when you need it, regardless of the volume level. Power and precision delivered with elegance,this is the MartinLogan way.
Convection Cooled Concealed Amplifier Design
The back of a subwoofer is rarely seen, and for good reason, its typically the least attractive side since theamplifier and connections are usually located here. With Depth we wanted every side to be the good sideand chased the wild notion of treating the back of the sub as an opportunity to improve both performanceand aesthetics. Our team came up with an elegant solution, a completely concealed amplifier design thatuses convection cooling to keep things running optimally. The decorative trim pieces on the back edges of thecabinet are actually extruded aluminum heatsinks. These intake cool air from the room while exhausting the hotair generated by the amplifier, keeping the amp operating at optimal levels even during the most demandingcontent. At this point you may be wondering where you plug in your subwoofer if there are no connectionson the back? In another fusion of form and function, the inputs are located on the rear bottom edge of the
subwoofer, tucked away inside an extruded aluminum trim piece. This helps keep your cable management niceand neat by placing the cables closer to the floor for a tidy look. We made sure to provide ample clearance toaccommodate a variety of power and signal cable options.
Concealed Touch Control Interface
While the MartinLogan Control app offers the most convenient way to adjust your subwoofer, Depth subwoofersalso feature a concealed Touch Control Interface (TCI). When not in use, the TCI acts as the backlight for thesignature MartinLogan zig on the front control cover. The backlit logo can be set to a variety of user selectablecolors or disabled entirely for a more stealth look. If you wish to access the subwoofer settings without using theapp, simply press underneath the zig and the front cover is easily removed to reveal the TCI. The TCI displaysall the available settings and options on its LED screen, and uses 6 contextually backlit touch points to interactwith the available on-screen options
Unconditional Satisfaction Guarantee
