MartinLogan Center Channel Speaker Logos User Manual Download Page 15

Page 15

Logos User's Manual

Surround Speaker

(dipole design)

Surround Speaker

(dipole design)

Front Speaker

Center Speaker

Subwoofer

Front Speaker

Subwoofer

Rear Projection
Television

It has 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 home movie
formats became widely available to the public; VCR and
laser disc.

By 1985, both formats had developed into very high
quality audio/video sources. In fact, the sonic perfor-
mance of some video formats exceeded audio-only
formats. Now, with theatre quality sound available at
home, the only element missing was the "surround
sound" presentation found in movie houses.

Fortunately,  "Dolby" encoded movies (which includes
almost all movies) have the same surround sound
information encoded on home releases as the theatre
films. All that is required to retrieve this information is a
decoder and additional speakers to reproduce it.

Home theatre is a complex purchase and we recommend
that you consult your local Martin-Logan dealer as he is
well versed in home theatre. The following list and
descriptions will only give you a brief outline as to the
responsibilities and demands placed on each speaker.

Front Left and Right. 

Front Left and Right. 

Front Left and Right. 

Front Left and Right. 

Front Left and Right. These speakers are the same two

used for audio only and should be of very good
quality. The front speakers need to be able to play
loud (over 102 dB) and reproduce bass below 80 Hz.

Center Channel.

Center Channel.

Center Channel.

Center Channel.

Center Channel. This is the most important speaker in a

video system as almost all of the dialogue is repro-
duced through it. Also, a large portion of the informa-
tion that is reproduced by the front channel speakers
is reinforced by the center speaker. It is important
that the center speaker be designed by the same
manufacturer as the front speakers and is recom-
mended for use as a center speaker. This is not the
place to cut corners.

Surround Speakers.

Surround Speakers.

Surround Speakers.

Surround Speakers.

Surround Speakers. We recommend that the surround

speakers play down to 80 Hz or below. The surround
speakers contain the information that makes it
appear that planes are flying over your head. Some
may suggest that this is the place to save money and
purchase a small inexpensive speaker. If you choose
to do so, be prepared to upgrade in the future as
discrete six channel digital encoding becomes
available and the demands on the surround speakers
increase.

Subwoofer.

Subwoofer.

Subwoofer.

Subwoofer.

Subwoofer. Most movie soundtracks contain large

amounts of bass information as part of the special
effects. A good subwoofer will provide a foundation
for the rest of the system. Good subwoofers are very
complex and expensive to manufacture. We recom-
mend a subwoofer with a built in amplifier.

Each piece of a surround system can be purchased
separately. Take your time and buy quality. No one has
ever complained that the movie was too real.

Home Theatre

Summary of Contents for Center Channel Speaker Logos

Page 1: ...The Logos Center Channel User s Manual...

Page 2: ...nty claims unless we have a completed Warranty Registration card on file Registration card on file Registration card on file Registration card on file Registration card on file Should you be using you...

Page 3: ...or structural integrity and is finished with a durable and attractive matte surface finish Through rigorous testing the curvilinear electrostatic panel has proven itself to be one of the most durable...

Page 4: ...air a corona discharge plasma speaker and an electrostatic speaker After a short time Rice and Kellogg had narrowed the field of contestants down to the cone and the electrostat The outcome would dic...

Page 5: ...accuracy How ever in actual use the Quad had a few problems It could not play very loud it had poor bass performance it presented a difficult load that some amplifiers did not like its dispersion was...

Page 6: ...ransducer An Electrostatic Transducer An Electrostatic Transducer An Electrostatic Transducer An Electrostatic Transducer Stator Spacer Diaphragm nique is known as push pull operation and is a major c...

Page 7: ...nical Acoustical Mechanical Acoustical Tone Shaping Tone Shaping Tone Shaping Tone Shaping Tone Shaping The clear Lexan panels on the back of the Logos stator are the key elements of an innovative pre...

Page 8: ...ing without locating a stud In the Wall In the Wall In the Wall In the Wall In the Wall Having only a forward firing sound wave launch allows the Logos to be mounted in a wall or cabinet A kit is not...

Page 9: ...his cord should be firmly inserted into any convenient AC wall outlet The Logos has been designed to remain on continuously and should remain connected to a continuous AC power source As mentioned ear...

Page 10: ...ld it in place The mounting holes on the bracket are set for standard 16 in stud spacing Use a stud finder to locate the wall studs nearest to the mounting holes you want to hit Figure 2 shows the bra...

Page 11: ...the register marks you made previously Unscrew the lag bolt and remove the bracket Drill the remaining pilot holes for the other lag screws Have your assistant hold the bracket to the wall while you d...

Page 12: ...ure 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 this wave experience like a 3...

Page 13: ...ront or back wall of your listening room is soft it may benefit you to have a hard or reflective wall in opposition As well the ceiling and floor should follow the same basic guideline However the sid...

Page 14: ...on Controlled Vertical Dispersion Controlled Vertical Dispersion Controlled Vertical Dispersion Controlled Vertical Dispersion As you can see from the illustrations your Logos speaker projects a contr...

Page 15: ...and Right These speakers are the same two used for audio only and should be of very good quality The front speakers need to be able to play loud over 102 dB and reproduce bass below 80 Hz Center Chan...

Page 16: ...times 10 times less less less less less than the static electricity that builds up on the surface of your television screen Questions If my child punctured the diaphragm with a pencil If my child punc...

Page 17: ...Sounds Funny Noises Popping and Ticking Sounds Funny Noises Popping and Ticking Sounds Funny Noises Popping and Ticking Sounds Funny Noises Popping and Ticking Sounds Funny Noises These occasional no...

Page 18: ...nterference such as a cabinet edge grill frame or other similar object Diaphragm Diaphragm Diaphragm Diaphragm Diaphragm A thin flexible membrane or cone that vibrates in response to electrical signal...

Page 19: ...resistance Resonance Resonance Resonance Resonance Resonance The effect produced when the natural vibration frequency of a body is greatly amplified by reinforcing vibrations at the same or nearly th...

Page 20: ...ofer Woofer Woofer Woofer Woofer 6 5 16 5 cm magnetically shielded in a sealed cabinet Midrange Midrange Midrange Midrange Midrange Two 17 x 9 25 43 2 cm x 23 5 cm curved electrostatic panels vapor de...

Page 21: ...Page 21 Logos User s Manual Notes...

Page 22: ...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 lt...

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