Bose 901 Series III - Manual (Page 6)

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IV. Installation
Your 901 Series 111 speaker system consists of three parts; two
speakers (marked "Part 1" and "Part 2") and an electronic Active
Equalizer packed in the "Part 1" container. Installation consists of
three steps; 1) placing your speakers for best sound. 2) connecting
Ihe speaker to your amplifying equipment, and 3) connecting Uie
equalizer to your amplifying equipment.
A. PLACING THE SPEAKERS
Unlike conventional speakers. Ihe 901 Series III functions with
the acoustics of your listening room, simulating the spatial char­
acteristics of the larger environments associated with live per­
formances This important advantage allows considerable free­
dom of placement and produces an unusually large "best listen­
ing area.” Outstanding performance can be obtained under a
wide variety of placement positions. (See Figure 2 )
The following guidelines in placing the speaker cabinets will
help you obtain the best performance The basic idea is to pro­
vide space to allow the sound to develop around the speaker
system.
1 The angled grille panels found on the enclosure are the rear
face of the 901 speaker (see Figure 1) Point this portion of
Ihe speaker toward the reflecting wall (the wall behind the
speaker) The point of the "V" should be between 12" and 24"
from the reflecting wall. Best results will be obtained with
the speakers placed between 12" to 18" from the reflecting
wall
2. Speakers should be placed at least 18" above the floor or
below the ceiling (see Figure 1). Distances closer to the
coiling or floor restrict the reflected sound energy.
3 The speakers should be at least 18" from a side wall or open­
ing into an adjacent room (Suggested distances are 3' to 5'.)
Large objects (such as furniture) should be at least 24" away
from the side of the speaker.
4 Best results will be obtained with the speakers spaced apart
6' to 10'; however, separation as small as 3' or as great as 15'
will give excellent results in most rooms.
if you have not decided where to place your speakers and
would like more information. SECTION VI (LIVING WITH
YOUR BOSE 901 SPEAKERS) provides several additional sug­
gestions for speaker placement
« A
I
if’W
J.
REFLECTING
WALL
Figure 1