Page 1
T500 and T300 Tower Loudspeakers
with Internal Powered Subwoofer
User Manual
™
®
Page 2
2
The lightning flash with arrowhead,
within an equilateral triangle, is intended
to alert the user to the presence of
uninsulated “dangerous voltage” within
the product’s enclosure that may be of
sufficient magnitude to constitute risk
of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user
to the presence of important operating
and maintenance (servicing) instructions
in the literature accompanying this
product
WARNING
DO NOT OPEN
TO PREVENT THE RISK OF ELECTRIC
SHOCK, DO NOT REMOVE
SPEAKER’S COVER. NO USER-
SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL.
AVISIQUE
POUR EVITER TOUT RISQUE DE
CHOC ELECTRIQUE, NE PAS
DEMONTER LE COUVERCLE DU
HAUT PARLEUR. AUCUN ENTRETIEN DES PIECES INTERIEURES
N’EST REQUIS.TOUT SERVICE
D’ENTRETIEN NE DOIT ETRE
EFFECTUE QUE PAR DU PERSON-
NEL D’ENTRETIEN QUALIFIE.
READ AND HEED IMPORTANT SAFETY WARNING
ON BOTTOM OF SPEAKER ENCLOSURE
CAUTION:
TO PREVENT ELECTRIC SHOCK, MATCH WIDE
BLADE OF PLUG TO WIDE SLOT, INSERT FULLY.
ATTENTION:
POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE
DANS LA BORNE CORRESPONDANTE DE LA PRISE
ET POUSSER JUSQU’AU FOND.
IMPORTANT NOTICE:
THE SERIAL NUMBER FOR THE SPEAKER IS
LOCATED ON THE SPEAKER’S CONTROL PANEL.
PLEASE WRITE THIS NUMBER DOWN AND KEEP IT
IN A SECURE AREA. THIS IS FOR YOUR SECURITY.
Page 3
33
POWER-CORD PROTECTION – The AC power cords
should be routed so that they are not likely to be
walked on. No object should bring weight to bear on
to the AC power cords.
LIGHTNING – For added protection for the speaker
during a lightning storm, or when it is left unattended
and unused for long periods of time, unplug them from
the wall outlet. This will prevent damage to the speaker
due to lightning and power-line surges.
OVERLOADING – Do not overload wall outlets, extension cords, or integral convenience receptacles as this
can result in a risk of fire or electric shock.
OBJECT AND LIQUID ENTRY – Never use probes of
any kind to reach into the speaker as they may touch
dangerous voltage points or short parts that could
result in a fire or electric shock. Never spill liquid of
any kind on the speaker.
SERVICING – Do not attempt to service the speaker
yourself as opening or removing covers may expose
you to dangerous voltage or other hazards. Refer all
servicing to qualified service personnel.
DAMAGE REQUIRING SERVICE – Unplug the speaker from the wall outlet or other power source and refer
servicing to qualified service personnel under the following conditions:
a) When the power-cord or plug is damaged.
b) If liquid has been spilled, or objects have fallen into
the speaker.
c) If the speaker has been exposed to rain or water.
d) If the speaker does not operate normally by follow-
ing the operating instructions; or exhibits a distinct
change in performance.
e) If the speaker has been dropped or damaged in
any way.
REPLACEMENT PARTS – When replacement parts
are required, be sure the service technician uses
replacement parts specified by Cambridge
SoundWorks or have the same characteristics as the
original part. Substandard substitutions may result in
fire, electric shock, or other hazards.
SAFETY CHECK - Upon completion of any service or
repairs to the speaker, ask the service technician to
perform safety checks to determine that the speaker is
in proper operating condition.
READ INSTRUCTIONS – All safety and operating
instructions should be read before the speaker is
operated.
RETAIN INSTRUCTIONS – The safety and operating
instructions should be retained for future reference.
HEED WARNINGS – All warnings on the speaker and
in the operating instructions should be adhered to.
FOLLOW INSTRUCTIONS – All operating and use
instructions should be followed.
CLEANING – Unplug the speaker from the wall outlet
or other power source before cleaning. Use a damp
cloth for cleaning.
ATTACHMENTS – Do not use any adapters or attachments not recommended by Cambridge SoundWorks
as they may cause hazards.
WATER AND MOISTURE – Do not use the speaker
near water-for example, near a bath tub, wash bowl,
kitchen sink, or laundry tub; in a wet basement; or near
a swimming pool or other similar areas.
ACCESSORIES – Do not place the speaker on an
unstable cart, stand, tripod, bracket, or table. The
speaker may fall, causing serious injury to a child or
adult and serious damage to the product.
VENTILATION – Slots, openings and metal fins in the
cabinet are provided for ventilation, to ensure reliable
operation of the speaker and to prevent it from overheating. These areas must not be blocked or covered
such as by placing the product on a bed, sofa, very
deep pile rug, or other similar surface. The speaker
should not be placed in a built-in installation such as a
bookcase or rack.
HEAT – The speaker should be situated away from
heat sources such as radiators, heat registers, stoves,
and other products (including amplifiers) that produce
heat.
POWER SOURCES – The speaker should be operated
only from the type of power source indicated on the
label. If you are not sure of the type of power supply to
your home, consult your dealer or local power company.
POLARIZATION – The speaker is equipped with a
polarized alternating-current line plug (a plug having
one blade wider than the other). This plug will fit into
the power outlet only one way. This is a safety feature.
If you are unable to insert the plug fully into the outlet,
try reversing the plug. If the plug should still fail to fit,
contact your electrician to replace your obsolete outlet.
Do not defeat the safety purpose of the polarized plug.
IMPORTANT SAFETY INSTRUCTIONS
Page 4
Introduction
Thanks for choosing a Newton Series loudspeaker. The
T1000 and T500 both feature the finest drivers, preci-
sion internal crossover and amplifier circuitry and an
elegant enclosure design.
The Product Development Team at Cambridge
SoundWorks believes there is no better combination of
audiophile-level attention to detail and reasonable
cost.
AFTER UNPACKING
Store the shipping carton and packing material for
future transport needs.
CONTENTS
A) One Loudspeaker
B) Two Cast Alloy Support Stands
C) Eight Stand Bolts
D) AC cord
E) Four threaded posts (“spikes”)
F) Four disc feet
G) Four lock nuts
H) Four soft foot pads
Also necessary:
A philips screwdriver (no.2, preferably)
to install the stands
Two lengths of speaker wire
or
Two lengths of speaker wire plus two signal cables
with RCA plugs at each end to connect the speakers
to a receiver or amplifier.
See pages 10 and 12 to determine what wire and
cable you need.
INSPECTING FOR DAMAGE
Examine the speaker system carefully for shipping
damage. If there is any, do not install or use the sys-
tem. Return the speaker to the store where you made
the purchase or call Cambridge SoundWorks at 1-800
FOR-HIFI (1-800-367-4434) for assistance.
INTRODUCTION
4
A
H
C
F
B
G
E
D
Page 5
5
STAND AND FOOT ASSEMBLY
CAUTION
ATTENTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE BACK OR
BOTTOM PANELS. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING
TO QUALIFIED PERSONNEL.
T300
Tower Loudspeaker
120V AC 2.5A
MASTER
POWER
OFF
ON
CAUTION:
FOR CONTINUED
PROTECTION,
REPLACE WITH
SAME TYPE 2.5A,
250V FUSE
Newton, Massachusetts USA
Made in China
Use only with s 250V fuse
Employer uniquement cvec
unfusible de 250V
Attach the cast metal stands to the base of each
speaker using four bolts for each stand (see diagram).
The metal stands are identical. Tighten the bolts
securely.
Connect the AC cord, but do not connect the
other end to a wall socket. Set the Master Power
switch to ON.
Choose which foot option is correct for your
situation:
Disc Feet: The disc feet insure stable speaker place-
ment on most flat surfaces and low pile carpet. Adhere
the four soft foot pads to the bottom of the disc feet if
you have a smooth, flat floor surface. The four feet
should be used without the pads on carpet.
Disc Feet With Spikes: Each threaded post has one
pointed end for use as a carpet spike. This point can
pierce thick carpeting and support the speaker from
the floor underneath. Note: these spikes will make
small but deep punctures in most floors. Use the Disc
Feet to avoid this.
Page 6
Disc Feet Installation:
1. Install the pointed end of a threaded post into the
end of each arm of the metal stands. Twist and
hand tighten each post.
2. Thread a lock nut most of the way up each post.
3. Screw a disc foot onto the end of each post about
seven complete turns.
4. Apply the self-adhesive foot pads, if necessary for
your floor surface. Raise the speaker upright.
5. When the final speaker placement is determined,
adjust the position of each disc foot on the threaded
post until stable placement has been achieved.
Hand twist the lock nut down onto the disc foot to
secure.
Disc Feet With Spikes Installation:
It is difficult to move the speaker once the spikes are
installed on the stands. Install the Disc Feet on the
speaker first and determine exactly where you want to
place the speaker on a carpet, then change the feet to
exposed spikes.
1. Install the blunt end of a threaded post into the end
of each metal stand arm. Twist each until it stops
turning but do not tighten them.
2. Thread a Disk Foot most of the way up each post.
Raise the speaker upright.
3. Adjust each threaded post until stable placement
has been achieved. Hand twist the Disc Feet up
against the metal stand arm to secure the spike.
If you find the spikes are not long enough to pierce the
carpet with the Disc Feet installed, you can use the
lock nut instead or omit both.
6
Disc Feet Installation
Disc Feet With Spikes Installation
1.
2.
3.
4.
1.
2.
Page 7
7
BASS CONTOUR adjusts the deepest
bass of the speaker system.
SPEAKER CONNECTORS AND CONTROLS
SUB LEVEL adjusts the output level
of the signal fed to the SUB IN jack.
SUB IN — If you decide to use your
receiver’s SUB OUT jack, connect it
here.
FULL RANGE INPUT — Attach
speaker wire to these two connectors.
POWER indicator. This will glow green
when the speaker is active and red
when the speaker is in standby mode.
LINK IN/OUT — connect this to the
other Newton Series Tower loudspeak-
er’s LINK IN/OUT, only if you are using
the SUB IN jack on the same speaker.
HIGH RANGE INPUT — After removing both
jumpers, use these two connectors for the high frequency range of a bi-wire connection scheme.
LOW RANGE INPUT — After removing both
jumpers, use these two connectors for the low frequency range of a bi-wire connection scheme.
FUSE — See page 13 for replacement information.
MASTER POWER — Use this switch to turn off the
AC power to the speaker. This is advisable if the
speaker will be unused for over a week or two.
AC POWER — Insert the supplied AC power cord
into this receptacle.
BASS CONTOUR
NORMAL
– 8 + 8
MIN MAX
SUB IN
HIGH
RANGE
LOW
RANGE
HIGH
RANGE
LOW
RANGE
SUB
LEVEL
LINK
IN/OUT
JUMPER
JUMPER
POWER
+
+
FULL
RANGE
INPUT
–
–
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
ATTENTION
RISQUE DE CHOC ELECTRIQUE
TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE BACK OR
BOTTOM PANELS. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING
TO QUALIFIED PERSONNEL.
CAUTION:
FOR CONTINUED
PROTECTION,
REPLACE WITH
SAME TYPE 2.5A,
250V FUSE
NE PAS OUVRIR
MASTER
POWER
OFF
ON
T300
Tower Loudspeaker
120V AC 2.5A
Newton, Massachusetts USA
Made in China
unfusible de 250V
Use only with s 250V fuse
Employer uniquement cvec
Page 8
888
We recommend you position each speaker so the side
panel with the subwoofer faces out.
For a two channel system (stereo), place the speakers
to form an angle between 25 and 55 degrees with your
listening position.
For a home theater system, place the speakers close
to the left and right sides of the monitor. This helps
create a cohesive sonic presentation across the left,
center and right front speakers.
Avoid positioning the face of either speaker near a
wall. Reflected sound will degrade the overall accura-
cy of the speaker’s tonal balance
Avoid positioning a speaker in a corner. Reflected
sound from the corner will also degrade the
tonal balance.
ABOUT SPEAKER PLACEMENT
20˚ - 55˚
ANGLE
MAXIMUM RECOMMENDED DISTANCE
APART FOR HOME THEATER
SURROUND
SPEAKER
SURROUND
SPEAKER
CENTER CHANNEL
MAIN SPEAKERS
45
˚
ANGLE
Page 9
Newton Series Towers can be driven from a receiver,
an integrated amplifier or a preamp/power amplifier
component system. This manual refers to a “receiver”
throughout, but all the instructions apply to integrated
amplifers or preamp/power amplifier setups as well.
9
CONNECTION DIAGRAMS
Speaker Wire
The simplest hookup configuration uses two lengths of
speaker wire (not provided) to connect the right and
left channel of your receiver to the Newton Series
Tower loudspeakers.
This straight forward configuration fully utilizes the
integral powered subwoofer. We recommend it to any-
one for the easiest setup. We also recommend it for
use with most surround receivers that are
not
Dolby
Digital
®
. The configuration of the “Sub Out” on these
receivers varies, making it hard to recommend a pre-
cise adjustment procedure.
In this configuration, you adjust the bass output of
each Tower speaker separately using the Bass
Contour control. The Sub Level control is not used.
If using the front left and front right channels of a
Dolby Digital receiver, set the Dolby Digital decoder
options at —
Subwoofer: NONE or OFF
Front Speakers: LARGE
Center Speaker and Rear Speakers: SMALL
This setting sends all the deep bass signals in the
music or program to the Newton Series Tower
speakers.
With the decoder set as described, the decoder’s
Crossover Frequency option selects the low filter
frequency for the center and rear speakers. Set
this option at 100 Hz, unless you are sure both the
center and rear speakers have significant output
below 100 Hz.
See Speaker Wire Preparation on page 11 for details
on how to connect speaker wire.
BASS CONTOUR
NORMAL
– 8 + 8
SUB
LEVEL
MIN MAX
SUB IN
LINK
IN/OUT
HIGH
RANGE
LOW
RANGE
HIGH
RANGE
LOW
RANGE
+
–
–
+
FULL
RANGE
INPUT
POWER
JUMPER
JUMPER
BASS CONTOUR
NORMAL
– 8 + 8
SUB
LEVEL
MIN MAX
SUB IN
LINK
IN/OUT
HIGH
RANGE
LOW
RANGE
HIGH
RANGE
LOW
RANGE
+
–
–
+
FULL
RANGE
INPUT
POWER
JUMPER
JUMPER
CENTER
REAR RIGHT
REAR LEFT
DVD
AUDIOANTENNA VIDEO
TV
VCR
DVD
TV
COAX
OPTICAL
VCR
MONITOR
OUT
OUT
IN
IN
IN
IN
AM
FM
75 OHM
GND
OUT
OUT
IN
IN
IN
TAPE
OUT
RL
CD
IN
RL
SUB OUT
DIGITAL INPUTS
FRONT RIGHT
FRONT LEFT
SPEAKER OUTPUTS
*
RECEIVER
RIGHT SPEAKER
INPUT PANEL
LEFT SPEAKER
INPUT PANEL
Page 10
101010
Speaker Wire and Subwoofer Signal Cable
This hookup configuration uses two lengths of speaker
wire and two signal cables (wires and cables are not
provided with the speakers). This configuration lets
you adjust the bass of both speakers with one control
— the Sub Level control on the speaker connected to
you receiver’s SUB OUT jack. It does not matter which
speaker connects to your receiver’s SUB OUT jack.
Use the speaker that is closest for convenience.
We recommend this configuration primarily with Dolby
Digital receivers, since SUB OUT signal conforms to
Dolby Laboratories® subwoofer output guidelines. The
subwoofer outputs of Dolby Surround® and stereo
receivers vary. We recommend using a straightforward
speaker wire hookup in these cases.
Set the Dolby Digital decoder options at
Subwoofer: ON
Front Speakers: LARGE
Center Speaker and Rear Speakers: SMALL
With the decoder set as described, the decoder’s
Crossover Frequency option selects the low filter fre-
quency for the center and rear speakers. Set this at
100 Hz, unless you are sure both the center and rear
speakers have significant output below 100 Hz.
Speaker Input Jumpers
The jumpers link the input of the upper frequency driv-
ers and the input of the subwoofer’s power amplifier.
Removing the jumpers allows separate speaker cables
to be attached to the main speakers and the sub-
woofer (biwiring). Both these cables should deliver the
same, full-range program.
We do not recommend removing the jumpers for any
other purpose.
CONNECTION DIAGRAMS
BASS CONTOUR
NORMAL
– 8 + 8
SUB
LEVEL
MIN MAX
SUB IN
LINK
IN/OUT
HIGH
RANGE
LOW
RANGE
HIGH
RANGE
LOW
RANGE
+
–
–
+
FULL
RANGE
INPUT
POWER
JUMPER
JUMPER
CENTER
REAR RIGHT
REAR LEFT
COAX
OPTICAL
OUT
SUB OUT
DIGITAL INPUTS
FRONT RIGHT
FRONT LEFT
SPEAKER OUTPUTS
RECEIVER
RIGHT SPEAKER
INPUT PANEL
LEFT SPEAKER
INPUT PANEL
BASS CONTOUR
NORMAL
– 8 + 8
SUB
LEVEL
MIN MAX
SUB IN
LINK
IN/OUT
HIGH
RANGE
LOW
RANGE
HIGH
RANGE
LOW
RANGE
+
–
–
+
FULL
RANGE
INPUT
POWER
JUMPER
JUMPER
BASS CONTOUR
NORMAL
– 8 + 8
SUB
LEVEL
MIN MAX
SUB IN
LINK
IN/OUT
HIGH
RANGE
LOW
RANGE
HIGH
RANGE
LOW
RANGE
+
–
–
+
FULL
RANGE
INPUT
POWER
LOW
RANGE
HIGH
RANGE
JUMPER
JUMPER
Page 11
1111
Use at least 18 gauge speaker cable for short runs
(under 15 feet). Use 16 gauge or heavier speaker
cable for longer runs.
1. Determine how long the speaker cable should be
for each speaker. Cut the speaker cable into the
appropriate lengths.
2. Strip 1/2 inch of insulation from the two individual
conductors in the speaker cable. Twist the exposed
strands of bare wire together.
3. Attach any connector plugs (like banana plugs) at
this time.
4. Determine which conductor you will use to connect
the positive terminals of the amplifier and speaker
together. One of the two conductors of a speaker
cable can usually be distinguished by printing or a
ridge on the insulation. Some times the metal of the
conductors has two different colors.
Make The Connections:
1. Unscrew the speaker’s red and black connector
knobs to expose the holes in their threaded shafts.
2. Insert the stripped end of one cable’s “indicated”
conductor into the speaker’s red (+) connector. Hand-
tighten the knob to secure the connection. Make sure
no stray strands of wire are exposed.
If you are using a cable connector plug, connect it
according to its instructions
3. Repeat the procedure for the cable’s other conduc-
tor and the speaker’s black (–) connector.
4. Connect the other speaker cable’s conductors to the
other speaker.
5. Connect the opposite ends of the speaker cable to
the speaker outputs of your receiver. Remember to
observe channel and polarity (Left Positive, Left
Negative, Right Positive, Right Negative).
SPEAKER WIRE PREPARATION
1111
Strip 1/2 inch
BASS CONTOUR
NORMAL
– 8 + 8
MIN MAX
SUB IN
HIGH
RANGE
LOW
RANGE
HIGH
RANGE
LOW
RANGE
POWER
SUB
LEVEL
LINK
IN/OUT
+
JUMPER
+
FULL
RANGE
INPUT
–
JUMPER
–
Page 12
12121212
ADJUSTMENT PROCEDURE
Power
Insert the speakers’ AC plugs into AC sockets.
Speaker Wire Configuration Adjustment
1. Set all receiver tone controls, all surround effects
and any other special processing circuits to Off.
2. Set the receiver to stereo operation.
3. Play a musical CD with good deep bass content.
Adjust the Bass Contour Control of both speakers in
tandem to a satisfying bass output level.
5. If you have a Dolby Digital receiver, set it to Dolby
Digital operation and repeat the procedure using a
Dolby Digital program with deep bass content.
4. Set the Bass Contour control at the average of the
two positions if you find any difference.
Speaker Wire Plus Subwoofer Cable
Configuration Adjustment
1. If you have a Dolby Digital receiver with a
Subwoofer Output Level adjustment option, set
it to 0 dB.
2. Set all receiver tone controls and all surround
effects Off.
3. Set the receiver to to Dolby Digital operation.
4. Play a Dolby Digital program with good deep bass
content. Adjust the Sub Level control of the “master”
speaker to a satisfying bass output level. It will control
the output of both speakers. Leave this control alone
afterward.
5. Use the Bass Contour control on both speakers to
make any fine adjustments.
Page 13
13131313
Using The Speakers With An External
Powered Subwoofer
Many people would laugh at the prospect of adding
an additional subwoofer to augment the strong bass
output of a pair of Newton Series Tower speakers. But
some Tower speaker owners may already have an
additional high-quality powered subwoofer and oth-
ers—well, we know they just can’t get enough loud
deep bass.
To use an extra powered subwoofer in tandem with
these speakers, we suggest splitting the output of your
receiver’s SUB OUT jack. Follow these guidelines:
1. Drive the extra subwoofer and the Newton Series
Tower speakers from the receiver’s SUB OUT jack. Use
a splitter to obtain two RCA jack outputs (one RCA
plug to two RCA jacks).
2. Set the extra subwoofer’s low pass control to its low-
est setting.
3. Set the Tower speakers bass balance without the
extra subwoofer, then reduce the bass output slightly
(3 dB for those of you that want a specific amount).
4. Increase the output level of the extra sub until the
overall bass output is restored.
If you do not have a SUB OUT jack available, it’s pos-
sible to drive both Tower speakers and an additional
powered subwoofer’s speaker level input with just
speaker wire. Just connect both the Towers and the
powered subwoofer as described on page 8, connect-
ing two speaker wires to each Left and Right amplifier
output.
Fuse Replacement
The fuse holder is located in the power connector at
the base of each speaker. The T500 uses a 4A fuse.
The T300 uses a 2.5A fuse.
To replace the fuse:
1. Unplug the AC cord from the AC power source,
then remove the AC power cord from the speaker’s
power connector.
2. Remove the fuse cap with a small, flat blade screw-
driver (see diagram 2).
3. Remove the fuse from the fuse cap
(see diagram 3).
4. Replace the fuse inside fuse cap with another met-
ric 5X20mm size fuse (see diagram 4).
5. Replace the fuse inside the cap, replace the fuse
and cap in the power connector (see diagram 5).
6. Connect the AC power cord to the speaker and
raise it upright.
7. Connect the power cord to an AC power outlet.
IMPORTANT: Turn off and unplug the
speaker before changing the fuse.
Use only with a 250V fuse
Employer uniquement avec
un fusible de 250V
2.
3.
5.4.
Page 14
14
SPECIFICATIONS
141414
T300:
Dimensions (H x W x D): 45 x 7 1/2x 18 inches
Base width: 12
3
/4 inches
Weight: 70 pounds
The T300 can be safely used with receivers rated above
30 watts per channel. There is little advantage to using a
receiver larger than 150 watts per channel with these speak-
ers, but any size receiver may be used should it be available,
so long as the receiver is not operated at excessive levels.
T500:
Dimensions (H x W x D): 48 x 8 1/2x 19 inches
Base width: 12
3
/4 inches
Weight: 81 pounds
The T500 can be safely used with receivers rated above
30 watts per channel. There is little advantage to using a
receiver larger than 200 watts per channel with these speak-
ers, but any size receiver may be used should it be available,
so long as the receiver is not operated at excessive levels.
Warning About Excessive Amplifier Distortion
Operating a receiver (of any power rating) beyond its
maximum undistorted output level creates distortion—
added high-frequency sound not part of the musical pro-
gram. Distortion dramatically increases the internal operating
temperature of a loudspeaker and will eventually cause the
speaker’s failure due to burned or melted internal parts. While
Cambridge SoundWorks includes the most heat-tolerant
parts commensurate with good acoustic design, the speak-
er’s Limited Warranty against defects in materials or work-
manship does not apply to parts that show evidence of hav-
ing failed from long-term operation at very high temperatures
Enclosure Cleaning
The speaker enclosures can be cleaned with a window-
cleaning product. Use a soft, lint-free cloth only. Avoid
spraying any cleaner on the grille panels.
Periodic use of cleaners specifically designed for wood
veneers is recommended for Mahogany and Blonde Maple
finishes.
Brush or vacuum the grille panels if dust accumulates
on them.
Page 15
Page 16
P81-1680 Rev A
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