Depth i deploys the full array of MartinLogan's advanced subwoofer technologies to achieve deep, rich, satisfying bass while preserving electrostatic-like accuracy and detail. Its TriLinear BalancedForce alignment, advanced low-distortion switching amplifier, and sophisticated triple-servo control systems extract the very best possible performance from Depth i's high-resolution 8-inch aluminum-cone drivers. TriLinear BalancedForce places the subwoofer's three drivers precisely 120 degrees apart from each other in the cabinet. Their reaction force vectors meet at the center and exactly cancel, virtually eliminating cabinet resonance and vibration. Gone with them are the cabinet-radiation coloration and bass blur that afflict even the best conventional subwoofers. The triple-servo system, meanwhile, ensures that the output from the drivers themselves – the output we want – is always an absolutely faithful replica of the audio input signal. Depth i blends easily into any high-performance stereo music or multi-channel home theater system. In fact, with its easily accessible top-mounted controls and separately configurable LFE and two-channel inputs, Depth i's performance can be independently optimized for home-theater and stereo operation in the same system.
MartinLogan - The Great American Speaker Company
Since 1983 MartinLogan, the great American speaker company, has hand-crafted high performance electrostatic speakers. Their award-winning designs, advanced technologies, and outstanding customer service have long made MartinLogan's amazingly detailed speakers a must have for home theater and music lovers around the world.
Depth i in a home setting
Depth i Subwoofer: Deep, Powerful, and Detailed
Depth i deploys the full array of MartinLogan's advanced subwoofer technologies to achieve deep, rich, satisfying bass while preserving accuracy and detail. Its TriLinear™ BalancedForce™ alignment, advanced low-distortion amplifier, and sophisticated triple-servo control systems extract the very best possible performance from three high-resolution 8-inch aluminum-cone drivers.
TriLinear BalancedForce technology places the subwoofer's three drivers precisely 120 degrees apart from each other in the cabinet. Their force meets at the center and exactly cancel, virtually eliminating cabinet resonance and vibration that cause muddy sounding bass in even the best conventional subwoofers. The triple-servo system, meanwhile, ensures that the output from the drivers themselves is always an absolutely faithful replica of the audio input signal.
TriLinear™ BalancedForce™ Aluminum Cone Woofers
(shown here in Natural Cherry)
Under the Hood: Making Sense of Subwoofer Technology
Rigid, Low-Mass Aluminum-Cone Diaphragms
By eliminating cone flexure, extremely rigid low-mass aluminum cones help our advanced-technology bass drivers achieve the very low distortion necessary for a superbly realistic bass performance.
TriLinear™ Driver Array
By operating three drivers in parallel, Depth i benefits from the low distortion and optimal control of their 8-inch diaphragms while achieving the equivalent acoustical output of a single massive 15-inch woofer.
BalancedForce™ Driver Alignment
Conventional subwoofer cabinets vibrate in reaction to driver activity, creating a secondary and highly colored sound source (which causes muddy sounding bass). In extreme cases, the cabinet may even 'dance' around the floor. The typical solution of adding mass to a subwoofer cabinet can make the problem less obvious, but it doesn't really make it go away. MartinLogan's BalancedForce design places multiple identical drivers in exact opposition to one another, so that their forces on the cabinet almost perfectly cancel one another.
Employing a novel application of the BalancedForce principle, Depth i locates the three drivers of its TriLinear™ array precisely 120 degrees apart on the cabinet. Their reaction force exactly balance at the center point for near-total cancellation, reducing acoustically destructive spurious cabinet radiation by as much as 25 dB (a power factor of more than 300:1).
Triple-Servo Correction System
A highly sophisticated servo control system for each driver compares the original audio signal input to the amplified woofer output and corrects for any deviation. These advanced servos combine with the drivers' inherent low distortion and their BalancedForce™ reaction-canceling alignment to yield the cleanest, most accurate bass possible.
Advanced Proprietary Vojtko™ Switching Amplifier
Depth i's amplifier belongs to a recently developed class of switch-mode designs that incorporate a variety of innovative techniques to reduce noise, distortion, and heat to the lowest possible levels. In particular, the switching frequency is much higher than in typical subwoofer amplifiers of this type. It can produce a true 350 watts continuously and 900 watts peak.
Depth i top-mounted control panel
Depth i connections
Taking Control: Flexible Inputs and Controls Make All the Difference
Comprehensive Inputs with Simultaneous-Connection Option
Depth i provides a LFE input (that bypasses the subwoofers internal crossover) for connection to surround preamp/processors and receivers that already integrate a subwoofer crossover. In addition, Depth i allows line- and speaker-level stereo inputs that connect to the subwoofers internal crossover. Both type of inputs can be connected simultaneously with separate level and crossover settings for each, enabling precise optimization for home-theater and stereo music playback in the same system - the best of both worlds.
25Hz Level Control
At very low frequencies, all rooms exhibit a phenomenon known as room gain, which produces a mild bass boost. The smaller the room, the higher the frequency at which this starts. Depth i's 25-Hz level control enables you to compensate for excessive room gain by cutting output in the 20- to 30-Hz range or, if you prefer, to accentuate the feeling of deep-bass energy by augmenting those frequencies.
Extended-Range Master Level Control
Crave a little heavy-metal thunder from time to time? Ordinary level controls top out at '10'; Depth i's goes to '11'!
Full-Rotation Phase Switch
Depth i's phase control can be switched from 0 to 270 degrees in 90-degree increments, allowing precise adjustment for optimum blending with the main speakers.
It's a lot easier to dial in exactly the right settings when you don't have to get down on your hands and knees to reach the controls. Depth i's top-mounted controls, discreetly hidden beneath an aluminum cover inset into the cabinet, take the drudgery out of performance tweaking.
Energy Transfer Coupler Spikes
Depth i is supplied with sturdy, 3/8-16 thread ETC™ spikes, which can be used in place of the standard feet to enhance stability on thick carpets or to create tighter coupling between subwoofer and floor.
The Final Breakdown: Technical Specifications
|Frequency Response:||22-120 Hz ±3dB; Anechoic through LFE effects input|
|Low Pass Filter Frequencies:||30, 35, 45, 55, 65, 80Hz|
|High Pass Filter Frequencies:||70Hz|
|Phase:||0°, 90°, 180°, 270°|
|25Hz Level Control:||±10 dB|
|Woofer Type:||10" (25.4cm) high excursion, aluminum cone with extended throw drive assembly, sealed non-resonant asymmetrical chamber format|
|Amplifier:||300W, 900W (peak)|
|Inputs:||Left/Right RCA Line Level, RCA LFE, Speaker Level|
|Outputs:||RCA Sub Out (all inputs summed), RCA Right/Left (with High Pass Filter)|
|Input Impedance:||20,000 Ohms|
|Power Draw:||Max: 250 Watts|
Idle: 15 Watts
Standby: 10 Watts
|Weight:||51 lbs. each (23.2 kg)|
|Dimensions (HxWxD):||18.6" × 15.2" × 13.8" (47.3 × 38.6 × 35 cm)|
Complete Your Home Theater with MartinLogan Front Channels (sold seperately)
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Vantage Speaker - Based on the state-of-the-art Summit loudspeaker, Vantage offers unprecedented performance for its size and price. Key to this achievement is our PoweredForce active woofer technology, which generates deep, articulate, dynamic bass from an astonishingly compact cabinet. An XStat electrostatic panel handles the midrange up, delivering the smooth, pristinely detailed, and richly ambient sound that is the hallmark of MartinLogan speakers. No ordinary speaker comes close.
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Vista Speaker - Vista is MartinLogan's most affordable XStat equipped floorstanding speaker. Incorporating ultra-high-resolution XStat and AirFrame technologies originally developed for the cost-no-object Summit; Vista is capable of an exceptionally dynamic and realistic performance. A single aluminum cone woofer, compact cabinet, and bi-wire capable toolless binding posts further reinforce Vista's high-end pedigree. The result? A stellar performer at an exceptional price.
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Fully Powered Purity Speaker - Purity is an internally powered hybrid design descended from Martinlogan's legendary, ultra performing enthusiast models. Purity represents a remarkable achievement in performance and 21st century connectivity at a really amazing price. Executing an exciting new direction, Purity is an elegant compact floor standing beauty that does it all. Combining the latest, friendliest version of MartinLogan's unique see-through electrostatic panel (world's most accurate method of sound reproduction) with 2 deep bass woofer cones in a clean lined cabinet, Purity mates ideally with any electronics for any audio use. Purity is at its best when directly connected with an RCA cable from any device with a volume control. Your computer, TV, i-pod, pre-amp, and A/V receiver will all love the marriage. Of course you may hook-up using conventional speaker wire if your system so requires.
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Source Speaker - Source is an elegant, compact floor standing beauty that does it all. Combining the latest version of MartinLogan's unique "see-through" electrostatic panel (the world's most accurate method of sound reproduction) with a deep bass woofer cone in a clean lined cabinet, Source mates ideally with nearly any of your electronics, for any use. Beyond delivering stunning, accurate play back of all types of stereo music, or incorporated as the star in your 5.1 or 7.1 home theater playing film soundtracks, Source will look great in your entertainment space and provide years of performance and pride because of its renowned MartinLogan design and construction. Best of all is the low cost - the Source allows you to get the superior build quality and truly exceptional sound of more expensive electrostats for a very affordable price.
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Preface Speaker - Compact and decor-friendly, the Preface is a perfect reflection of the passion and pride of MartinLogan products. Equipped with 3 6.5 inch woofers and an ATF high frequency driver, the Preface delivers a sound with unparalleled purity, precision and clarity. Frequency response ranges from 35-20,000 Hz.
Add A MartinLogan Center Channel or Surround (sold seperately)
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Motif Speaker - Motif is an amalgam of technologies carefully balanced to maximize performance and installation flexibility. A state-of-the-art XStat transducer, MicroPerf stators, ClearSpar spacers, and vacuum bonding combine with dual aluminum-cone woofers and a proprietary Vojtko crossover to provide maximize efficiency for an effortless, unlimited dynamic presentation. The result is rich, lifelike, stunningly detailed sound that blends seamlessly with our other electrostats and enhances any home theater.
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Fully Powered Feature Speaker - Internally powered with a high-resolution 150 watt switching amplifier the Feature allows an unprecedented level of system connection flexibility. A standard RCA line-level input minimizes wire clutter by connecting directly to on-wall televisions (and other devices) without the need for external amplifiers. Additionally, standard speaker-level connections allow the fully powered Feature to integrate with audio systems where RCA connection is not possible.
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Matinee Speaker - The MartinLogan Matinee electrostatic center channel speaker is highly compatible and complimentary with your home theater system. The MartinLogan Matinee is an evolved expression of the same ideas and engineering that spawned the Stage and Motif speakers. A state-of-the-art Generation 2 MicroPerf electrostatic panel, dual paper-cone woofers, and highly sophisticated Vojtko crossover technology deliver unrivaled precision and center-channel intelligibility. Carefully hand-built using only the finest components, Matinee's crossover preserves even the most subtle sonic nuances while handling the full dynamics of any source.
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Fresco i Speaker - The Fresco i is a compact on-wall or off-wall speaker that can be used as either center, front or surround channels. The Fresco i comes standard with a low-profile, single-pivot wall brack that allows verticle or horizontal mounting. Table and floor stands are optional. Fresco i has two 4 " woofers as well as a mid-range and high frequency driver and plays from 75 to 20,000 Hz.
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Vignette Speaker - The Vignette is an on-wall or off-wall speaker that can be used as either center, front or surround channels. The Vignette comes standard with both black and silver grill covers and a low-profile, single-pivot wall brack that allows verticle or horizontal mounting. Table and floor stands are optional. The Vignette has two 4 " woofers as well as a high frequency driver and plays from 78 to 20,000 Hz.
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Encore TF Speaker - Designed to serve as a high performance center channel in home theater environments, the Encore TF delivers exceptional performance at a very affordable price. Sophisticated technologies such as ATF™ (Advanced Thin Film) tweeters and quality parts give this speaker lifelike clarity and openness approaching that of our electrostatic designs.The Encore TF is a highly adaptable speaker working well mounted on or off the wall in any application. It also performs well in front channel and surround channel applications.
Other MartinLogan Custom Install Solutions (sold seperately)
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Voyage In-Wall Speaker - The MartinLogan Voyage in-wall speaker system is a ultimate-performance speaker for your home theater entertainment room.. It is the world's most sophisticated and elegant architectural loudspeaker, The Voyage in-wall speaker sounds so clean and dynamic, you'd think it were a superb standalone design. Not surprising, since it borrows so much from our own, including Advanced Thin Film drivers and high-resolution woofers. A rigid aluminum chassis and die-cast mounting locks enhance performance and ease installation, while an adjustable tweeter-alignment sphere, paintable end caps, and a selection of grille colors provide incredible adaptability.
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Passage In-Wall Speaker - A uniquely elegant and extremely accurate in-wall speaker, Passage is a remarkable performer delivering the sound quality you would expect to hear from one of MartinLogan's floorstanding loudspeakers. With twin high-resolution aluminum-cone woofers, a world class ATF (Advanced Thin Film) tweeter, an advanced-technology Vojtko crossover and a rigid aluminum chassis and 1" front baffle, Passage is quite simply an in-wall loudspeaker marvel. The result is a full, wonderfully smooth and engaging sound with clean and surprisingly deep bass foundation.
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Ticket In-Wall Speaker - The MartinLogan Ticket in-wall speaker is a compact, affordable in-wall speaker for every room in your home. While significantly smaller than Passage, the elegant, affordable Ticket in-wall speaker is nonetheless a very strong performer. Its dual long-throw, high-resolution woofers, integrated dome tweeter, and advanced Vojtko¿ crossover deliver rich, clear sound and superb stereo imaging. Ticket also features paintable end caps and a selection of grille colors for perfect matching with any decor. Its quick and easy, yet very secure, installation system is the same used in Voyage and Passage speakers from MartinLogan.
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Helos 100 In-Ceiling Speaker - Helos 100 is ideal for any room requiring ultimate in-ceiling audio performance such as a 2-channel system in a large living room or a multi-channel system in a discrete home theater. Helos 100's aimable assembly allows a large audience to experience the full potential of the Helos 100. Featuring a 1-inch neodymium soft dome tweeter, high-rigidity aluminum cone woofer, and proprietary Vojtko crossover topology, Helos 100 effortlessly provides solid imaging with extreme sonic accuracy. An acoustic contour switch tailors dispersion assuring a top-notch performance in any installation.
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Helos 20 In-Ceiling Speaker - A direct descendant from the Helos100, the Helos 20 continues with the MartinLogan tradition of exceptional sound. The Helos 20 has the ability compliment any decor with it's paintable grill and frame. Sonically, the Helos 20 boasts a dual voice coil system with two 0.75 inch soft dome tweeters with a pivoting stem and a single 6.5 inch woofer, creating crisp accurate sound. Frequency response ranges from 47-20,000 Hz.
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Helos 10 In-Ceiling Speaker - The Helos 10 delivers legendary MartinLogan quality and performance in a compact, high-resolution in-ceiling loudspeaker. Featuring a 1-inch neodymium soft dome tweeter mounted in an aimable stem, high-rigidity aluminum cone woofer, and proprietary Vojtko crossover topology, Helos 10 effortlessly provides extreme sonic accuracy.