Angstrom INDF 6.5W Manual

Congratulations! You have purchased a high quality stereo
loudspeaker. When matched to comparable electronic equipment,
expect years of quality high fidelity sound. Our belief is that music
matters and we are focused on delivering superlative music
reproduction everywhere in your home.
The following manual is designed to give you, the installer or owner,
basic information as to the speaker's installation and operation.
It is beyond the scope of this manual to go into all the details that
must be taken into consideration in a sophisticated high fidelity
system. When installing the wiring and speakers it is important to
adhere to all local codes and regulations. Consulting a professional
will help to maximize your system's performance.
If you have any questions that are not answered by this manual,
contact your local dealer for assistance. For the most current
information please visit: www.preference-audio.com.

SHIPPING DAMAGE

Each speaker is thoroughly tested before it leaves the factory.
However, in shipment, accidents may occur. Please inspect your
speakers carefully when you receive them to make sure there
is no damage. If there is, please notify your dealer, or supplier
immediately for assistance. If you received your speakers by public
transportation, report the damage at once to the shipping company.

AMPLIFIER OPERATION

These speakers will perform well with amplifiers from 5 to 125
Watts RMS. However, damage to the speakers can be done by
amplifiers of nearly any power rating if the amplifier is overdriven
into clipping. "Amplifier clipping" is a phrase used to describe
a condition when, because of the volume demand, an amplifier
is being asked for more power than it can give. Clipping causes
distortion of the audio signal. If you should hear an unusual
amount of distortion at high listening levels then consider reducing
the volume. DAMAGE DONE TO A SPEAKER BY CLIPPING IS NOT
COVERED UNDER THE WARRANTY.

HOw IS THIS SPEAkER DIFFERENT?

This speaker was designed and engineered to provide the finest
performance achievable in a compact package. The custom
waveguide is unique in the industry and provides cross-axis
performance that gives every listener in the room a sense of
envelopment unmatched by other speakers in this category.
By focusing the sound field across the listening space, the
listener experiences a more balanced and symmetric sound level,
especially when the main speakers are spaced more closely than is
ideal, (common in many of today's home theaters).
The waveguide also increases the efficiency of the tweeter,
allowing it to operate with far less input power and significantly
lowering the distortion. This same waveguide also allows the
Rev.A
Angstrom Loudspeakers MC
391 Marwood Drive, Unit 6, Oshawa, ON L1H 7P8
www.angstromloudspeakers.com
For: 6-1/2" In-Wall with Rotating Waveguide
tweeter to operate a full octave lower than conventional dome
tweeters, This allows the tweeter to cover more of the critical voice
range.
This same cross-axis tweeter design creates a much smoother
off-axis listening experience, eliminating the midrange-hole that
is commonly experienced with conventional designs. Additionally,
by controlling the directivity of the sound field, the early reflections
that occur from nearby walls and furniture are reduced so that
more of the direct sound from the speakers are heard, improving
the intelligibility and detail of the original sound source.
Finally, the inset tweeter produces a time aligned position and
excellent phase coherency with the woofer, improving the off-axis
performance, both in the vertical and horizontal directions.

SOME OF THE wAyS THIS SPEAkER CAN bE uSED

This speaker can be used for 2-channel High Resolution audio
or for nearly any speaker location within a home theater system.
The chart on the following page provides suggested tweeter
orientations for a number of common speaker locations within a
home theater. We encourage you to experiment with the tweeter
orientation to see what works best within your system, especially
with surround placements.
While it may seem unconventional to use this speaker in the
Landscape orientation for the center dialog speaker, it is actually
well suited because of the excellent phase coherency between the
tweeter and woofer. The speaker actually outperforms most of MTM
(Mid-Tweeter-Mid) designs that have become commonplace for the
center dialog channel.

ROTATING THE TwEETER

• The tweeter should be rotated into the desired position for optimal
performance.
• There are detents every 15 degrees. The tweeter will lock into
these detents when positioned over them.
• Press firmly at the edge of the tweeter waveguide using 4 fingers.
• A gap of about 2mm will appear at the edge when depressed.
• Rotate the tweeter into the desired position, releasing when you
feel a detent.
• NOTE: It may be necessary to moisten one's fingers to achieve
good traction on the waveguide.
• The detents will not be felt when the waveguide is fully depressed.
Decrease pressure to locate the detents.
O verall (W x H)
INDF 6.5W
9" x 15-3/4"
AEF 6.5W
9" x 15-3/4"
•
TEL: 416-988-8806
Frameless
Cut-Out (W x H x Depth)
7-15/16" x 14-7/16" x 3-1/8"
7-15/16" x 14-7/16" x 3-1/8"
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