Bose 901 IV Series

If you decide to hang your speakers, place the Part il speaker
on the left side of the room and the Part I speaker on the riphl
side of the room,* Turn the speakers upside down and place
them on a covered surface or rug.
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THRE&CHAIN OR POUR-CHAIN MOUNTING
Three-chain mounting utilizes the holes (6) near me front of
the cabinet, and a third pilot hole located near the "V" of the
cabinet.
When suspending the speaker with four chains, use the lour
predrilled holes (C) located near the corners of the speaker.
Insert four Vi •inch eyehooks in place. The speaker system
weighs 35 pounds and care should be iakar> to ensure that
the speaker Is safely supported from the cefling. A supporting
chain should be attached to a structural support, such as e
beam or joist.
If you have placed the speakers quite high in ypur listening
room, the sound can be directed downward by angling the
rear of the speaker down. The sound will be directed
downward after it Is reflected off the rear wall. This is done by
Increasing the length of the rear chajn(s) holding the speaker
system In place.
INSTALLING THE RUBBER FEET
The speaker is supplied with four rubber feel and four screws
These feet should be used to prevent possible damage to sur¬
faces such as shelves or tables. Insert the feet with the
screws in the four holes (C) located near the corner of the
cabinet.
16
0. ROOM ACOUSTICS
The acoustical properties Of the room (such as the size,
shape, constructs, and furnishings) play an important pan In
the quality of sound produced by your high-fidelity system.
A lack of bass response frequently may be attributed to walls
of thin panel construction, large openings (e g., doorway), or
excessive window glass, whtch alh^ low frequencies to pass
through rather than reHeclIng them into the listening room.
The overly prighi sound of acoustically ’ live" rooms (e g.,
those with uncovered floors or settler rugs, small amounts of
furniture, hard walls) can be Improved by the addition of rugs
and heavy drapery, which also serve to eliminate echoes and
standirtg waves For acoustically "dead" rooms (e g., rooms
with wall-to-wall carpeting, heavily upholstered furniture and
draperies.) furnishings should be rearranged or removed.
The unique controls on your 901 IV Equalizer are especially
heipfuf In compensating for the characteristics of different
rooms.
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