Connecting The Speakers; Wire Selection; Phasing/Wiring - Bose Direct/Reflecting 901 III Series Owner's Manual

Installation
B. CONNECTING THE SPEAKERS
1. Wire Selection
II the wire used to connect the speakers to your power am¬
plifier has too much resistance, audible coloration of the
sound and loss ol power can result The table below summar¬
izes maximum wire lengths lor 18-. 16-. and 14-gauge, two-
conductor. stranded copper wire lor use with one or two
pairs ol BOSE 901 loudspeakers
TABLE 1
RECOMMENDED CONNECTION WIREf
Wire Length
One Pair
of 901s
Wire Length
Two Pairs
of 901s
Type of Speaker
Hook-Up Wire
27 feet
13 feet l&gaugezipcord
(or two-conductor wire)
42 feet
21
feet
1
6-gauge two-conductor
wire
67 feet
34 feet 14-gauge two-conductor
wire
In most instances, copper zip-cord, readily available at most
electrical and hardware stores, can be used lor speaker con¬
nection This wire usually has a ribbed line(s) along one
side of the insulation so that each wire can be identified lor
proper phasing of your speaker system.
|
I iMf
Wirt'
Ic'IKjlllS sllinvil III l.lllf I WCItM'alCtll.llciJtHI flic IVR*. ol J nkUilllUMl .nkMjIu
uikifulioMol -»0Silli I uilowiiiy IIHf (JimMinespiovnfc.d ihumust(IuchuhjfcJenur
will Iju WSiUb 1(1 (JuUX.1 .Illy uAMUbUn mlrnihicuO l»y llu Spc.ikur MU MlSt hslc-tx-rs
will not nuliui any dkx:l even ii wire lenylhs die increased l»y .is nuUi as Wtt.
2. Phasing/Wiring
It is important that the amplifier connections for both 901
speaker systems be identical (see Figure 3) so that both
speakers work together (in phase),
a Start with the speaker marked Part 1."
b Place it on the left side of your room facing the speaker
system
c Locate the "+" and "-** terminals on the bottom of the
speaker
d Using the speaker wire (which is marked to distinguish
one conductor from the other), connect the Part 1"
speaker terminal marked " to the terminal marked
' com." "negative." or "minus ' on the left channel ampli¬
fier output (When connecting the 901 Series III loud¬
speakers to your amplifier, if there is a choice of impe¬
dances on the amplifier output, use the terminal marked
"8 or "8 ohms " If two pairs of 901 Series III loudspeak¬
ers are being connected, the terminal marked "4" or "4
ohms" on the receiver or amplifier should be used )tt
t fNoto When of A.f.iiuk) your 90Is m sleruo. only one equalizer is requited II uddi
IhmioI pairs ol 90ls aic used. Ihuy can lx* pure! used wiilioul the equalizer I liese
si»\»kc*rsdiu sokias add on" pans and can be connected as extension speakers or
used Niaddilun lo II m fcrsl pa* ol speokors
Wiicn conncciuKj two pur sol 901 s|».ikers k) your eqmprneni wire IIto speakers in
ixwaflcl
mmsI
i evenly niaiiuUicUmxl receivers or ainpliliets wdl Ofiuralu Iwo pans ol
UOIsvntedm ll«» MVinner I Iwvti il your receiver or ampMxi is nm cafhiNu ol
4 iflHiiOfxi.ium
Mill
two I*.ms ul 90Is.
Wire
llu* speakers in series Conlacl your
<
fc.Mk.-r 4
.my fur II nr .issisl.it IUJ is req* w ed
8