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h
t
ome
heater
It had long been the practice of stereo buffs to connect their televi-
sion to a 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 lim-
ited by the broadcast signal.
In the late 1970's and early 1980'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 qual-
ity audio/video sources. In fact, the sonic performance of some
video formats exceeded audio-only formats. Now, with theater-
quality sound available at home, the only element missing was the
"surround sound" presentation found in movie houses.
Fortunately, Dolby and DTS encoded DVD's emerged with the
same surround sound information encoded on home releases as
the theatrical release. Additionally, new high-resolution home-
viewing formats such as Blu-ray as well as high-definition content
provided via cable or satellite have evolved which include multi-
channel encoded audio that is virtually master tape quality. All
that is required to retrieve this information is a decoder and addi-
tional speakers and amps to reproduce it.
Home theater is a complex purchase and we recommend that you
consult your local MartinLogan dealer, as they are well versed in
this subject.
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. The following list and descriptions will
give you only a brief outline of the responsibilities and demands
placed on each speaker.
Front Left and Front Right
If these speakers will be the same two used for your stereo play-
back, they should be of very high quality and able to play loudly
(over 102 dB) and reproduce bass below 80 Hz.
Center Channel
This is the most important speaker in a home theater system, as
almost all of the dialogue and a large portion of the front speaker
information is reproduced by the center channel. It is important
that the center speaker be extremely accurate and mate well with
the front speaker, and that it is recommended for use as a center
speaker. This is not the place to cut corners.
Surround Speakers
We recommend (along with the film industry) that the surround
speakers play down to at least 80 Hz. Surround speakers contain
10
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 small, inexpensive speakers. If you choose to do so,
be prepared to upgrade in the future as discrete multi-channel digi-
tal encoding is proliferating rapidly and the demands on surround
speakers have increased.
Subwoofer
With any good surround system you will need one or more high-
quality subwoofers (the .1 in a 5.1, 6.1, or 7.1 channel surround
system). Most movie soundtracks contain large amounts of bass
information as part of the special effects. Good subwoofers will
provide a foundation for the rest of the system.
Figure 7. D
subwoofers as the LFE (effects) channels, MartinLogan
ynamo
speakers as front, center, and surround (effects) channels.
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