Specifications
Introduction
Congratulations! You have invested in a new
world of high-performance audio!
The MartinLogan Preface represents the extension of an
intensive, dedicated group research program directed
toward establishing a world class reference monitor utilizing
leading-edge technology, without compromising durability,
reliability, craftsmanship or aesthetic design.
The result of cumulative technology gleaned from previous
research and development projects, the Preface represents
the latest developments in advanced thin film and hybrid
loudspeaker technology.
The materials in your new Preface speaker are of the high-
est
quality and will provide years of enduring enjoyment
and
deepening respect. Preface's state-of-the-art Vojtko™
crossover is designed and manufactured with the same
meticulous attention, care and precision as those found in
MartinLogan's ultimate loudspeaker products.
This User’s Manual will explain in detail the operation of
your Preface speaker and the philosophy applied to their
design. A clear understanding of your speakers will insure
that you obtain maximum performance and pleasure from
this most exacting transducer. It has been designed and con-
structed to give you years of trouble-free listening enjoyment.
WARNING!
• Refer servicing to a qualified technician.
• To prevent fire or shock hazard, do not
expose this module to moisture.
• Turn amplifier off should any abnormal
conditions occur.
• Do not drive speaker beyond its rated
power.
Installation In Brief
We know you are eager to hear your Preface speakers,
so this section is provided to allow fast and easy set up.
Once you have them 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
possible performance from this most exacting transducer.
If you should experience any difficulties in the setup or
operation of your Preface speakers, please refer to the Room
Acoustics, Placement or Operation sections of this manual.
Should you encounter a persistent problem that cannot be
resolved, please contact your authorized MartinLogan dealer.
They will provide you with the appropriate technical analysis
to alleviate the situation.
Step 1: Unpacking
Remove your new Preface speakers from their packaging.
Step 2: Placement
Place each Preface at least two feet from the back wall
and angle them slightly toward your listening area. This is
a good place to start. Please see the Placement section
(pages 6–8) of this manual for more details.
Step 3: Signal Connection
Use the best speaker cables you can. Higher quality cables,
available from your specialty dealer, are recommended
and will give you superior performance. Spade connectors
are suggested for optimum contact and ease of installation.
Attach your speaker cables to the signal input section on the
rear panel. Be consistent when connecting speaker leads to
the terminals on the back of the Preface. Take great care to
assign the same color to the (+) terminal on both the left and
right channels. If bass is nonexistent and you cannot discern
a tight, coherent image, you may need to reverse the (+) and
(–) leads on one side to bring the system into proper polarity.
For detailed setup instructions, please turn to the Connections
section (page 5) of this manual for more details.
Step 4: Listen and Enjoy
Now, you may turn on your system and enjoy!
4 Introduction & Installation in Brief
IntroductIon & InstallatIon In BrIef