Bose 501 Series IV Loud Owner's guide - Page 4

A717MAE

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o • Note on Wire Sizes: As the gauge number of a wire gets smaller, the wire itself gets larger. For instance when a minimum gauge of 18 is suggested. an acceptable substitute is 16 gauge, not 20 gauge. RECOMMENDED WIRE SIZES' Maximum Length Wire Gauge 30 feet (9 m) 18(.75 mini) 45 feet (14 m) 16(1 5 mm) 70 feet (21 rn) 14 (2.0 nun-) 'Bad en arn,uumum frequency refipcme cevofion O.5 cis 5. Phasing Test If you are not certain that the speakers are connected to your amplifier "in phase" (i.e., positive to positive. negative to negative), perform this simple lest 1. Set your sound system for MONO (monophonic) reproduction. Be sure the balance control is centered or set to normal. 2. Temporarily place the speakers so that they are facing each other closely. 3. Play music containing deep bass notes through the system. If the speakers are phased correctly, the sound will appear to come from a point between the speakers with full, natural bass response. 4. If the music seems to be lacking in deep bass, reverse the wire connections to one speaker. and repeat the test Use the connection that produces the most powerful bass. 6. Fusing Any speaker can be damaged if the amplifier driving it should fail. Damage may also occur by playing the music so loudly that it sounds distorted. This can happen even with a low-powered amplifier or receiver. Your 501" speakers incorporate Automatic System Protection circuitry which guards against certain types of electrical stress. Fusing will provide additional protection, and is recommended. To properly install optional fuses (not provided). fuseholders should be inserted into the + (POS) wire connecting each speaker to your amplifier or receiver (see FIGURE 2). Use 2-ampere, last-blow Buss AGC Series or equivalent fuses. A fuse kit containing fuses and holder is available for 57.50 from Bose Service. 78 Turnpike Road, Westborough, MA 01581. Ask for 501 Fuse Kit, Part Number 108938-2. 7. Maintenance The wxxxi-grain vinyl cabinetry of your 501 Series IV speakers can be cleaned by wiping with a soft. damp cloth and a mild detergent. The grille panels require no special care, but may be carefully vacuumed if necessary. 8. In Case of Difficulty If you suspect a problem with your Bose 501 Series IV system, use the following checklist to determine if the difficulty is actually in the speaker system. or in some other component of your music system: if one speaker sounds defective, do not switch the speaker cables. as this could damage a speaker. Disconnect the defective speaker at the amplifier output terminals. and reconnect it to the amplifier channel that is operating correctly. If the speaker that sounded defective now plays properly, the problem is not in the speaker or the wiring. If trouble appears in both speakers, connect them to another amplifier that is known to be working properly. If the speakers now operate correctly, the problem is not in the speakers. If trouble persists in one or both speakers, contact your authorized Bose dealer. He will verify any defects and arrange for service by an authorized service agency or by the Bose factory Bose Corporation will make every effort to remedy any problem within the terms of the warranty at minimum inconvenience to you. 9. Technical Information Features Direct/Reflecting' system Free Space array Dual Frequency" crossover network Automatic System Protection circuitry Synoxe II computer testing Fieyear, transferable warranty Driver complement: One (1) 10-inch (25.4 cm) longexcursan woofer, Iwo(2)3-inch (Z6cm)tweeters,mounted in a Free Space array. Nominal impedance: 8 ohms Power rating: 115 watts IEC, compatible with receSrs or amplifiers rated from 20 to 230 watts per channel Cabinet: Wood-grain vinyl veneer, 16"W x 14"D x 25"H 401 x 35.6 x 63.2 cm) Shipping weight: 40 lb (18.1kg)rspeaker Cupyrrihr -rya acc+ccuxision. ThipilcuifirjnF(E:ringharn. Alaol7ot.smms 0SA Is/2)879.733DMX(50e)872.659r moduC., c VOL:1W Yxylchvdo C76,0ay reBrtI OCSE8L.e0r-pftrcsiorq Prodva feeItte and •atirear."E rtt.birx:t vi repsrateo itavre•vk,Irtiaanndo5t0tk1earEt)LDXr.,R:d.0r0eOelCzittSe3x5:F3Cing'FFar:GsSu"n-EirCkE;oCfeIe3lods9o/nrCtnale Ccrtiorrbon Prirm in uSA .A717MAE' Better sound throughresearch PN 12:351gAN I

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o
•
Note
on
Wire
Sizes:
As
the
gauge
number
of
a
wire
gets
smaller,
the
wire
itself
gets
larger.
For
instance
when
a
minimum
gauge
of
18
is
suggested.
an
acceptable
substitute
is
16
gauge,
not
20
gauge.
RECOMMENDED
WIRE
SIZES'
Maximum
Length
Wire
Gauge
30
feet
(9
m)
18(.75
mini)
45
feet
(14
m)
16(1
5
mm)
70
feet
(21
rn)
14
(2.0
nun-)
'Bad
en
arn,uumum
frequency
refipcme
cevofion
O.
5
cis
5.
Phasing
Test
If
you
are
not
certain
that
the
speakers
are
connected
to
your
amplifier
"in
phase"
(i.e.,
positive
to
positive.
negative
to
negative),
perform
this
simple
lest
1.
Set
your
sound
system
for
MONO
(monophonic)
repro-
duction.
Be
sure
the
balance
control
is
centered
or
set
to
normal.
2.
Temporarily
place
the
speakers
so
that
they
are
facing
each
other
closely.
3.
Play
music
containing
deep
bass
notes
through
the
system.
If
the
speakers
are
phased
correctly,
the
sound
will
appear
to
come
from
a
point
between
the
speakers
with
full,
natural
bass
response.
4.
If
the
music
seems
to
be
lacking
in
deep
bass,
reverse
the
wire
connections
to
one
speaker.
and
repeat
the
test
Use
the
connection
that
produces
the
most
power-
ful
bass.
6.
Fusing
Any
speaker
can
be
damaged
if
the
amplifier
driving
it
should
fail.
Damage
may
also
occur
by
playing
the
music
so
loudly
that
it
sounds
distorted.
This
can
happen
even
with
a
low
-powered
amplifier
or
receiver.
Your
501"
speakers
incorporate
Automatic
System
Protection
circuitry
which
guards
against
certain
types
of
electrical
stress.
Fusing
will
provide
additional
protection,
and
is
recommended.
To
properly
install
optional
fuses
(not
provided).
fuse
-
holders
should
be
inserted
into
the
+
(POS)
wire
con-
necting
each
speaker
to
your
amplifier
or
receiver
(see
FIGURE
2).
Use
2
-ampere,
last
-blow
Buss
AGC
Series
or
equivalent
fuses.
A
fuse
kit
containing
fuses
and
holder
is
available
for
57.50
from
Bose
Service.
78
Turnpike
Road,
Westborough,
MA
01581.
Ask
for
501
Fuse
Kit,
Part
Number
108938-2.
7.
Maintenance
The
wxxxi-grain
vinyl
cabinetry
of
your
501
Series
IV
speakers
can
be
cleaned
by
wiping
with
a
soft.
damp
cloth
and
a
mild
detergent.
The
grille
panels
require
no
special
care,
but
may
be
carefully
vacuumed
if
necessary.
8.
In
Case
of
Difficulty
If
you
suspect
a
problem
with
your
Bose
501
Series
IV
system,
use
the
following
checklist
to
determine
if
the
diffi-
culty
is
actually
in
the
speaker
system.
or
in
some
other
component
of
your
music
system:
if
one
speaker
sounds
defective,
do
not
switch
the
speaker
cables.
as
this
could
damage
a
speaker.
Discon-
nect
the
defective
speaker
at
the
amplifier
output
terminals.
and
reconnect
it
to
the
amplifier
channel
that
is
operating
correctly.
If
the
speaker
that
sounded
defective
now
plays
properly,
the
problem
is
not
in
the
speaker
or
the
wiring.
If
trouble
appears
in
both
speakers,
connect
them
to
another
amplifier
that
is
known
to
be
working
properly.
If
the
speakers
now
operate
correctly,
the
problem
is
not
in
the
speakers.
If
trouble
persists
in
one
or
both
speakers,
contact
your
authorized
Bose
dealer.
He
will
verify
any
defects
and
arrange
for
service
by
an
authorized
service
agency
or
by
the
Bose
factory
Bose
Corporation
will
make
every
effort
to
remedy
any
problem
within
the
terms
of
the
warranty
at
minimum
inconvenience
to
you.
9.
Technical
Information
Features
Direct/Reflecting'
system
Free
Space
array
Dual
Frequency"
crossover
network
Automatic
System
Protection
circuitry
Synoxe
II
computer
testing
Fieyear,
transferable
warranty
Driver
complement:
One
(1)
10
-inch
(25.4
cm)
long-
excursan
woofer,
Iwo
(2)3
-inch
(Z6
cm)tweeters,
mounted
in
a
Free
Space
array.
Nominal
impedance:
8
ohms
Power
rating:
115
watts
IEC,
compatible
with
receSrs
or
amplifiers
rated
from
20
to
230
watts
per
channel
Cabinet:
Wood
-grain
vinyl
veneer,
16"W
x
14"D
x
25"H
401
x
35.6
x
63.2
cm)
Shipping
weight:
40
lb
(18.1kg)rspeaker
Cupyrrihr
-rya
acc+ccuxision.
ThipilcuifirjnF(E:ringharn.
Alaol7ot.smms
0SA
Is/2)879.733D
MX(50e)
872.659
r
moduC.,
c
VOL:1W
Yxylchvdo
C76
,
0ay
reBrt
I
OCSE8L.e0
r-pftrcsiorq
Prodva
feeItte
and
•atirear."E
rtt.birx:t
vi
v,
Irian
ottke
ELX.R.00OCtS353Cing
F
r
GS
"ECECeeld
9/nrCtn
ale
repsrateo
itavre•kt
and
501
art)
Dr,:d
reelzitex:F
'Fa:sun
-
irk;
of
I3oso
Ccrtiorrbon
Prirm
in
uSA
.A717MAE'
Better
sound
through
research
PN
12:351gAN
I