MartinLogan The Logos User Manual

MartinLogan The Logos User Manual

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Summary of Contents for MartinLogan The Logos

  • Page 1 User's Manual The Logos Center Channel...
  • Page 2: Table Of Contents

    Contact Martin-Logan for details. Troubleshooting If you did not receive a Certificate of Registration with your Logos speaker you cannot be assured of having received a new unit. If this is the case, please contact Glossary your Authorized Martin-Logan dealer.
  • Page 3: Introduction

    Ruggedly constructed and insulated, as much your hands around your mouth when speaking) produced as 200 watts of continuous power has driven the Logos by dynamic midrange drivers is absent and the natural energized diaphragm into massive excursions with no openness of the human voice comes through.
  • Page 4: History

    No discharge (plasma) speaker, and an electrostatic sooner had the cone become established than it was speaker. challenged by products developed during this new rebirth. Page 4 Logos User's Manual...
  • Page 5 Quad had a few problems. It could ever built. It's too bad Rice and Kellogg were never able not play very loud, it had poor bass performance, it to see just how far the technology would be taken. Page 5 Logos User's Manual...
  • Page 6: The Electrostatic Concept

    Figure 2. Cut away view of a typical moving coil driver. as accurately as a loud- moving it back and forth, Notice the complexity due to the high number of parts. speaker must (40,000 times producing music. This tech- per second!). Page 6 Logos User's Manual...
  • Page 7: Martin-Logan Exclusives

    3 times its actual needed mise in sound quality. working voltage and gives the Logos a wide margin of safe operation. In addition to the electrical After extensive research, Martin-Logan engineers...
  • Page 8: Installation Options

    On the Floor: On the Floor: allows the Logos to be mounted in a wall or cabinet. A kit is too low to blend properly with the front speakers and the use of not available for this type of installation, but we would be a stand that positions the Logos at the bottom of the screen happy to discuss the procedure with your dealer.
  • Page 9: Operation

    AC wall outlet. The Logos has been designed to remain on continuously and should remain connected to a continuous AC power source. As mentioned earlier, power consumption of the Logos is very small and the life expectancy of its components will not be reduced by continuous operation.
  • Page 10: Logos Bracket Assembly/Setup

    Step 1 . Position the Logos bracket on the wall in the desired position for the speaker, and have your assistant hold it in place. The mounting holes on the bracket are set for standard 16 in.
  • Page 11 Step 8 . To direct the speaker at the listening position slightly loosen each of the end bolts, tip the logos to it’s best Logos User’s Manual page 11...
  • Page 12: Room Acoustics

    Large objects in the room such as cabinetry or furniture can help to minimize this potential problem. Some serious “audiophiles” will literally build a special room with no parallel walls just to get away from this phenomenon. Page 12 Logos User's Manual...
  • Page 13 The point is that balance is the gliders are used, the bass can be ill defined and even boomy. The use of spikes is recommended to insure optimum environment. secured footing for your speakers. Page 13 Logos User's Manual...
  • Page 14: Dispersion Characteristics

    Controlled Vertical Dispersion Controlled Vertical Dispersion Your Logos launches a 30 degree dispersion pattern As you can see from the illustrations, your Logos speaker projects a controlled dispersion pattern. See Figure 2 . when viewed from above. This horizontal dispersion field...
  • Page 15: Home Theatre

    Take your time and buy quality. No one has mended for use as a center speaker. This is not the ever complained that the movie was too real. place to cut corners. Page 15 Logos User's Manual...
  • Page 16: Questions

    75% of the power available to the front speakers . As discrete digital Your Logos is equipped with a device we call the signal surround becomes available all five speakers should sensing circuit. Here's how it works. The signal automati- receive the same amount of power.
  • Page 17: Troubleshooting

    Low Frequency (60Hz) Hum Low Frequency (60Hz) Hum Low Frequency (60Hz) Hum If the Logos hum when the amplifier is turned on, but not playing music, the cause may be a ground loop. A ground loop is caused by a difference in the ground potential in the A.C.
  • Page 18: Glossary

    The flat-topped signal has high decibels/watt/meter (dB/w/m). distortion. levels of harmonic distortion which creates heat in a loud- ESL. Abbreviation for electrostatic speaker and is the major cause of loudspeaker. loudspeaker component failure. Page 18 Logos User's Manual...
  • Page 19 RMS value. system to another, sometimes Acoustic power is proportional to one that converts the energy in the square of the RMS sound form. Loudspeaker transducers pressure. convert electrical energy into mechanical motion. Page 19 Logos User's Manual...
  • Page 20: Logos Specifications

    To be matched with system; minimum 50 watts Weight Weight Weight Weight Weight 62 lbs (28.1 kg) Dimensions Dimensions Dimensions Dimensions Dimensions 40.6" W x 9.6"D x 11.8"H (103.1 cm x 24.4 cm x 30 cm) Page 20 Logos User's Manual...
  • Page 21 Notes Page 21 Logos User's Manual...
  • Page 22 $ 5.00 $ 5.00 $ 5.00 $ 5.00 $ 5.00 2001 delaware street, p.o. box 707, lawrence, kansas 66044 ph: (785)749-0133, fax: (785)749-5320 www.martinlogan.com © 1997 martin-logan ltd. martin-logan ltd. martin-logan ltd. martin-logan ltd. martin-logan ltd. all rights reserved...

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