Definitive Technology 350, 450 User Manual
StudioMonitor
350
Audio/Video Magnetically Shielded Loudspeakers
Owner's Manual
•
450
Congratulations
Congratulations on your purchase of a Definitive Technology
StudioMonitor Audio/Video Loudspeaker System. These superb
loudspeakers utilize state-of-the-art components (cast-basket
homopolymer-coned bass-midrange drivers, moving coil ferrofluid-cooled pure aluminum dome high frequency radiator,
long excursion pressure coupled subwoofer, uniphase crossover
networks, etc.), a non-resonant monocoque cabinet, low diffraction construction and complete magnetic shielding, in order to
achieve the most lifelike sound possible in your listening room
for many years to come.
The Definitive Technology StudioMonitors are compact high
definition loudspeaker systems designed for use in audio/video
systems of the highest quality. Because of their compact size,
wide range, high power handling and natural articulate clarity,
they are ideal for use as a left main, right main, and center speaker (which may be stand, shelf, wall or in-cabinet mounted) in
conjunction with all surround sound decoding systems, including
Dolby Pro Logic*, Dolby Digital AC-3*, DTS*, Dolby Digital
EX*, as well as all 6.1 and 7.1 systems. In addition, the
StudioMonitors are ideal for use as rear or side surround speakers
in all surround sound decoding systems or as audiophile quality
main speakers in a high quality stereo system.
*Registered Trademark
Unpacking Your StudioMonitors
Please Inspect For Shipping Damage
Each loudspeaker leaves our plant in perfect condition. Any visible or
concealed damage most likely occurred in handling after it left our plant
and should be reported at once to your Definitive dealer or the delivery
company that delivered your loudspeaker. Please unpack your system
carefully. Save all cartons and packing materials in case you move or
need to ship your system. Record the serial number found on the back of
the StudioMonitors in the appropriate place on your warranty card.
Positioning the StudioMonitors in Your Room
The StudioMonitors are very flexible in terms of their positioning and
placement requirements. They can be placed on a bookshelf, on or in an
entertainment cabinet (in the open or enclosed behind a grille or door
with appropriate opening to the room), on a stand, or mounted on the
wall. They can be positioned vertically or horizontally (just be sure that
if you position them horizontally that the side of the speaker where the
woofer is located under the grill cloth — you can tell by feeling the cloth
— faces up). The side of the speaker where the pressure coupled subwoofer is located should not be pressed right up against a wall or another
object but should have at least 1 to 2" of clearance (the subwoofer side of
the speaker can be very close to a side wall, just not pressed against it).
Please remember that although these recommendations are usually
valid, all rooms and listening set-ups are somewhat unique, so do not
be afraid to experiment with the speakers. Remember, whatever
sounds best to you is correct.
The speakers should usually be placed a minimum of 5 to 7 feet
apart and kept away from the side walls and corners if possible. A
good rule of thumb is to place the speakers separated by one half the
length of the wall they are positioned along, and each speaker one
quarter the length of the back wall away from the side wall.
Speakers may be angled in toward the listening position or left parallel with the rear wall. Angling the speakers in (pointed directly
at the listener) will result in a somewhat brighter, clearer sound with a
sharper focus and a more solid central image (generally, we recommend this), while leaving the speakers parallel with each other will
result in a less bright, more diffuse sound.
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The StudioMonitors are mirror imaged (serial numbers have either
an A or a B) with the side mounted, pressure coupled subwoofers
located so they may be set up with both woofers facing in (toward
each other) or both woofers facing out (away from each other). (Feel
the side of the speakers to determine which side the woofer is on.)
Facing the woofers in or out will vary the sound somewhat and which
way is best will vary with your room. Again, experiment to determine
the best location for the speakers. If you use a StudioMonitor for a
center speaker, you may use either a speaker A or speaker B, and it
may be positioned either vertically or horizontally. If it is used horizontally, make sure the subwoofer is facing up.
Speaker Break-In
Your StudioMonitors should sound good right out of the box; however, an extended break-in period of 20-40 hours or more of normal playing is required to reach full performance capability. Break-in allows the
suspensions to work in and results in fuller bass, a more open “blossoming” midrange and smoother high frequency reproduction.
Connecting Your Loudspeakers
Hooking Up Your StudioMonitors
Your StudioMonitors each have one pair of gold 5-way binding
posts. Normally, you will hook up the left main/front channel red(+)
terminal of your receiver or amplifier to the red(+) terminal of your
left StudioMonitor and the left main/front channel black(-) terminal of
your receiver or amplifier to the black(-) terminal of your left
StudioMonitor. Connect the right channel main/ front channel red(+)
terminal of your amplifier or receiver to the red(+) terminal of your
right StudioMonitor and the black(-) terminal of the right main/front
channel of your receiver or amplifier to the black(-) terminal of your
right StudioMonitor. If your receiver/decoder has a bass management
system and you are using a separate subwoofer, set bass management
to “Small
are not using a separate subwoofer, set bass management to “Lar
left and right main speakers and “No
” left and right main speakers and “Yes” subwoofer. If you
ge”
” subwoofer.
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