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MartinLogan Depth subwoofer manual

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Table of contents for the manual

  • Page 1

    D EPTH TM user ’s manual c l s e l e c t r o s t a t i c M ART I N L OGA N[...]

  • Page 2

    2 Contents C ONTENTS Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 Installation in Brief . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Introduction and Assembly . . . . . . . . . . . . . . . . . . . . . .4 Introduction T rim Removal and Installation About the Controls . . . . . . . . . . . . . . [...]

  • Page 3

    3 Installation in Brief 3 I NST ALLA TION IN B RIEF W e know that you are eager to hear your new Depth sub- woofer , so this section is provided to allow fast and easy set up. Once you have it operational, please take the time to read, in depth, the rest of the information in this manual. It will give you perspective on how to attain the greatest p[...]

  • Page 4

    4 Introduction and Assembly I NTRODUCTION AND A S SEMBL Y Congratulations! Y ou have invested in one of the world's premier subwoofers. The MartinLogan Depth represents the culmination of an intensive, dedicated team research program directed toward establishing a world class reference subwoofer using leading- edge technology , without comprom[...]

  • Page 5

    Level Knob Setting the level too high will cause the bass to seem bloated and is the single most common cause of bad sounding subwoofers. A rule of thumb is that the subwoofer should not draw attention to itself , but should simply make the systems low end seem more extended and accurate. Low P ass F ilter Knob When the Depth is connected in multi-[...]

  • Page 6

    C ONNECTIONS AND C ONTROL S ET TINGS MartinLogan engineers designed the Depth for easy setup and system integration. Before beginning to connect your Depth, please review the controls discussed in the last sec- tion. An understanding of these will help speed you along as you connect your Depth with your system. All signal con- nections are done at [...]

  • Page 7

    Connections and Control Settings 7 Multi-Channel Mode This setup is recommended if your Depth will be used in a dedicated home theater or multi-channel system. When a signal is connected to the Depth ’s LFE input, Depth ’s internal low pass filter is not active. By following this setup, you will allow your processor to handle most of the bass m[...]

  • Page 8

    8 Connections and Control Settings Using an A/V processor and the Depth ’s low pass filters. This setup is recommended if your Depth will be used in both 2-channel mode and as a LFE (0.1) channel in a multi- channel mode. By following this setup, you will allow your processor to handle most of the bass management while run- ning in multichannel m[...]

  • Page 9

    Connections and Control Settings 9 This setup is recommended if your Depth will be used in a 2-channel only system. When a signal is connected to the Depth ’s Left/Right Inputs, the Depth ’s internal low pass filter is active. Signal Connection (see figure 8): 1 Connect the left and right outputs of your amplifier to the left and right speaker [...]

  • Page 10

    10 Connections and Control Settings This setup is recommended if your Depth will be used in a 2-channel only system and you intend to use the Depth ’s High P ass F ilter Out. Signal Connection (see figure 10): 1 Connect the left and right outputs of your preamplifier to the left and right inputs of the Depth using quality RCA interconnects. 2 Con[...]

  • Page 11

    Using Sub Out offers an easy way to implement multiple Depth ’s in your audio/video system. Note: All additional Depth subwoofers must run as either dedicated 2-channel (stereo) or multi-channel (LFE) sub- woofers, but not both. Signal Connection: 1 Connect the first Depth to your system using one of the five modes previously described. 2 Connect[...]

  • Page 12

    12 Connections and Control Settings WARNING! The power cord should not be installed, removed, or left detached from the subwoofer while the other end is connected to an AC power source. The IEC power cord should be firmly inserted into the AC power receptacle on the rear connection panel of the Depth, then to any convenient AC wall outlet. The Dept[...]

  • Page 13

    P LACEMENT Placement 13 Generally , subwoofers have the most output when placed in the corner of a room. However , this can also exaggerate the subwoofers output making blending difficult. W e recom- mend starting by placing the Depth in a corner . It should be placed in such a way that there are 2 inches between the grill cloth and the wall. This [...]

  • Page 14

    T erminology 14 Room Acoustics This is an area that requires both a little background to understand and some time and experimentation to attain the best performance from your system. Y our room is actually a component and an important part of your system. This component is a large variable and can dramatically add to or subtract from a great sonic [...]

  • Page 15

    After living and experimenting with your Depth, you may want to use the ETC ™ (Energy T ransfer Coupler) Spikes (see figure 17), included with your Depth. With the use of these spikes, the Depth subwoofer will become more firmly planted on the floor and, consequently , bass will tighten. It is best not to implement the spikes, however , until you[...]

  • Page 16

    It had long been the practice of stereo buffs to connect their television to the stereo system. The advantage was the use of the larger speakers and more powerful amplifier of the stereo system. Even though the sound was greatly improved, it was still mono and limited by the broadcast signal. In the late 1970's and early ‘80's two new h[...]

  • Page 17

    Resulting from an equal and opposite reaction to the cone's movement, strong bass causes traditional subwoofer enclo- sures to generate acoustic vibrations. Y ou feel this by touching the cabinet. Although the "physics" of this phenomenon actually cause a subwoofer cabinet to resonate or even dance, most subwoofer designers apply wei[...]

  • Page 18

    18 Frequently Asked Questions & Troubleshooting F REQUENTL Y A SKED Q UESTIONS & T ROUBLESHOOTING How do I clean my subwoofer? Use a dust free cloth or a soft brush to clean your subwoofer . W e recommend a specialty cloth (available through the Xtatic shop at www .martinlogan.com) that cleans better than anything else we have tried. Is it [...]

  • Page 19

    19 The high-resolution, servo-controlled Depth subwoofer system consists of multiple woofers for high SPL output with minimal distortion. The woofers are arranged in a BalancedF orce array that dramatically lowers cabinet vibrations. This approach leads to tight, well-defined and deep bass output. The equalization used is specifically designed to c[...]

  • Page 20

    AC. Abbreviation for alternating current. Active crossover . Uses active devices (transistors, ICs, tubes) and some form of power supply to operate. Amplitude. The extreme range of a signal. Usually measured from the average to the extreme. Arc. The visible sparks generated by an electrical discharge. Bass. The lowest frequencies of sound. Bi-Ampli[...]

  • Page 21

    21 Inductor . A device designed primarily to introduce inductance into an electrical circuit. Sometimes called a choke or coil. Linearity . The extent to which any signal handling process is accomplished without amplitude distortion. LFE. The abbreviation for low frequency effects. Midrange. The middle frequencies where the ear is the most sensitiv[...]

  • Page 22

    N OTES 22 Notes[...]

  • Page 23

    Notes 23[...]

  • Page 24

    2101 Delaware Street, Lawrence, Kansas 66046, USA tel 785.749.0133 fax 785.749.5320 www.martinlogan.com c l s e l e c t r o s t a t i c M ART I N L OGA N ©2002 MartinLogan, All rights reserved Rev. #091602[...]