Russound D250LS User manual

-------------
---------
l.~Russound
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0
D250LS POWER AMPLIFIER
1
11
I
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'==" '=="

SAFETY INSTRUCTIONS
WARNING:
TO
REDUCE
THE
RISK
OF
FIRE
OR
ELECTRIC
SHOCK,
DO
NOT
EXPOSE
THIS
APPLIANCE
TO
RAIN
OR
MOISTURE.
CAUTION:
TO
REDUCE
THE
RISK
OF
ELECTRIC
SHOCK,
DO
NOT
REMOVE
THE
COVER.
NO
USER-
SERVICEABLE
PARTS
INSIDE.
REFER
SERVICING
TO
QUALIFIED
SERVICE
PERSONNEL.
A
The
lightning flash with arrowhead symbol,
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 a risk
of
electric
shock
to
persons.
A
The
exclamation point within
an
equilateral
triangle
is
intended
to
alert the user
to
the
presence
of
importantoperating and maintenance
(servicing) instructions in the literature
accqmpanying the appliance.
Safety Instructions
1.
Read
Instructions- All the safety and operating instructions
should be
read
before the appliance
is
operated.
2.
Retain Instructions
-The
safety and operating instructions
should
be
retained for future reference.
3.
Heed
Warnings -All warnings on the appliance in the
operating instructions should be adhered to.
4. Follow Instructions -All operating and user instructions
should
be
followed.
5.
Water and Moisture -The appliance should not be used near
water; for example, near a bathtub, washbowl, kitchen sink,
laundry tub, in a wet basement, or near a swimming pool.
The
apparatus shall not be exposed
to
dripping or splashing
liquids and no objects filled with liquids, such
as
vases,
shall
be
placed on the apparatus. Do
not
touch the appliance
with
wet
hands. Do
not
handle the appliance or powercord
with
wet
or
damp hands.
If
water
or
any other liquid enters
the appliance cabinet, take
it
to
qualified service personnel
for inspection.
2
6. Cleaning -
The
appliance should be cleaned only
as
recommended by the manufacturer.
From
time
to
time you
should wipe
off
the front and side panels and the cabinet
with asoft cloth.
Do
not
use
rough material, thinners, alcohol
or other chemical solvents or cloths since this may damage
the finish or remove the panel lettering.
7. Ventilation -
The
appliance should be situated
so
that
its location or position does
not
interfere with its proper
ventilation.
For
example, the appliance should
not
be
situated on a bed,
sofa,
rug, or similar surface that may
block the ventilation openings, or placed in a built-in
installation,
such
as
a bookcase or cabinet that may impede
the flow
of
air through the ventilation openings.
Place
the
unit in a well-ventilated location, leaving at least 2 inches
(5
em)
of
clearance on all
sides,
top
and
rear
of
unit for air
flow.
If
ventilation
is
blocked, the unit may overheat and
malfunction.
8. Heat -
The
appliance should be situated away from heat
sources
such
as
radiators, heat registers, stoves, or other
appliances (including amplifiers) that produce heat.
9. Grounding or Polarization -Precaution should be taken
so
that the grounding or polarization means
of
an
appliance
is
notdefeated.
10. Power
Cord
Protection -Power supply cords should be
routed
so
that they
are
not
likely
to
be
walked on or pinched
by items placed upon or against them, paying particular
attention
to
cords at plugs, receptacles, and the point where
they exit from the appliance.
11. Power
Sources
-
The
appliance should be connected
to
a
power supply only
of
the type described in the operating
instructions or
as
marked on the appliance.
12.
Main Power Disconnect-
The
power switch
is
a single-pole
switch. When the switch
is
in the"Off"position, the appliance
is
not completely disconnected from the main power. The
main power plug
is
used
as
the disconnect device and shall
remain readily operable. When installing the product, ensure
that the plug
is
easily accessible.
13. Non-Use Periods
-The
power cord
of
the appliance should
be unplugged from the outlet when left unused for a long
period
of
time.
14. Attachments -Only
use
attachments/accessories specified
by the manufacturer.
15.
Carts
and Stands -
The
appliance should 8
be
used only with a cart or stand that
is
recommended by the manufacturer.
An
RussoundD250LSInstallation
Manual
appliance and cart combination should be moved with
care.
Quick stops, excessive force and uneven surfaces may cause
the appliance and cart combination
to
overturn.
16.
Wall
or Ceiling Mounting -
The
appliance should be
mounted
to
a wall or ceiling only
as
recommended by the
manufacturer.
17. Location
of
the Amplifier -
Do
not mount this unit under a
kitchen cabinet.
Do
not expose the amplifier
to
direct
sun
light or heating units
as
the amplifier internal components'
temperature may
rise
and shorten the life
of
thecomponents.
Avoid damp and dusty places.
18. Object and Liquid Entry -
Care
should be taken
so
that
objects do
not
fall and liquids
are
not spilled into the
enclosure through the openings.
19. Servicing -
The
user should
not
attempt
to
service the
appliance beyond that described in the operating
instructions. All other servicing should be referred
to
qualified service personnel.
20.
Damage Requiring Service -
The
appliance should be
serviced by qualified service personnel when:
A.
The
power
supply cord or the plug
has
been damaged;
B.
Objects have
fallen, liquid
has
been spilled into the appliance;
C.
The
appliance
has
been exposed
to
rain; or
D.
The appliance does
not
appear
to
operate normally; or
E.
The
appliance
has
been
dropped orthe enclosure
is
damaged.
CE
lntertek
Note: This equipment
has
been tested and found
to
comply with the limits
for a
Class
Bdigital device, pursuant
to
part
15
of
the
FCC
rules. These limits
are
designed
to
provide reasonable protection against harmful interference
in a residential installation. This equipment generates,
uses
and
can
radiate
radio frequency energy and,
if
not
installed and used in accordance with
the instructions, may
cause
harmful interference
to
radio communications.
However, there
is
no guarantee that interference will
not
occur in aparticular
installation.
If
this equipment does
cause
harmful interference
to
radio or
television reception, which
can
be determined by turning the equipment
off
and on, the user
is
encouraged
to
try
to
correct the interference by one
of
or
more
of
the following measures: reorient or relocate the receiving antenna;
increase the separation between the equipment and receiver; connect the
equipment into
an
outleton acircuit differentfrom that
to
which the receiver
is
connected, or consult the dealer or
an
experienced radio/TV technician for
help.
This
Class
Bdigital apparatus complies with Canadian
ICES-003.
Cet appareil numerique de
Ia
classe
B est conforme
a
Ia
norme NMB-003
du Canada.
Rev.2

Ce symbole << d'eclair >> s'applique
aux materiaux non isoles presents
dans votreappareil et pouvant causer
un choc electrique. Pour assurer
Ia
securite des membresde votre
famille, veuillez ne pas enlever le
couvercle de votre pord.uit.
Les << points d'exclamation >> out
pour but d'attirer votre attention sur
des
carac-teristiques a propos
desquelles vous devez lire
soigneusement Ia documentation
accompagnant l'appareil afin d'eviter
tout probleme d'exploita-tion ou
d'entretien.
Veuillez lire ces consignes avant de faire fonctionner
cet appareil
1. Lire ces instructions.
2. Conserver ces instructions.
3. Obeir atous les avertissements.
4. Suivre toutes
les instructions.
5. Eviter d·utiliser cet appareil aproximite de 1·eau.
6. Nettoyer al'aide d'un linge sec seulement.
7. Ne pas boucher les orifices de ventilation. Effectuer
!'installation selin
les instructions du fabricant
8. Ne pas installer l·appareil pres d·une source de
chaleur comme un radiateur, un registre de chaleur,
une cuisiniere ou
tout autre appareil (y compris les
amplificateurs) qui degage de Ia chaleur.
Rev.2
CONSIGNES DES ECURIT EIMPORTANTES
9. Ne pas contoumer Ia mesure de securire de Ia fiche
polarisee ou de mise a
Ia terre. Une fiche polarisee
est doree de deux lames
don't l·une est plus large
que l·autre. Une fiche
avec mise a Ia terre est dotee
de deux lames auxquelles s·ajoute une troish?me
broche de mise a
Ia terre. La lame large, Ia troisieme
broche, est foumie pour votre securite.
Si Ia fiche
foumie ne rentre
pas dans votre prise secteur,
consultez un electricien qui changera votre prise
murale obsolete.
10. Proteger le cordon d'alimentation pour eviter que
l·on marche dessus ou qu'il soit plie en particulier
au niveau de Ia fiche, des prises de courant de
commodite et al·endroit ou
il sort de l·appareil.
11. Utiliser uniquement des equipements/accessoires
specifies par le fabricant.
12. L'appareil ne doit etre utilise qu·avec le chariot, socle,
trepied, support ou table trepied, support ou table
specifie par
le fabricant ou vendu avec l'appareil. Un
appareil utilise en combinaison avec un chareot doit
etre deplace avec soin afin d·eviter les a
risques de blessures occasionnees par
le renversement de l·appareil.
13. Debranchercet appareil durant les orages electriques
ou lorsqu,il n,est
pas utilise pour une periode de
temps prolongee.
14. Lentretien ou Ia reparation de l·appareil doit etre
effectue par du personnel qualifie uniquement
II faut
faire reparer
l·appareil des que celui-ci est endommage
dune facon quelconque,
qu·il s·agisse du cordon ou
de
Ia fiche d'alimentation, si du liquide a ete renverse
OU des objets sont tombes dans l'appareil, S'il a ete
expose a Ia pluie ou aune humidite excessive, s·il ne
fonctionne pas normalement ou s·il asubi un choc.
15. Avertissement: Afin de reduire les risques d'incendie
ou de choc electrique, ne
pas exposer cet appareil a
Ia pluie ni a l'humidite et ne pas placer d'objets
remplis de liquide, comme
des vases, sur le dessus
de l·appareil.
RussoundD250LS Installation Manual
16. AVERTISSEMENT: Les appareils deCLASSE I do
etre raccorde aune prise electrique reliee a Ia terrE
17. La fiche ou un coupleur d'appareil est utilise com mE
dispositif de deconnexion, ce dispositif doit reste1
facilement accessible.
3

PRODUCT OVERVIEW
Introduction
The
Russound
D250LS
is
a 2-channel power amplifier with automatic local
source switching capability. The
D250LS
allows a local source
(e.g.,
PC
or
TV
in
the bedroom)
to
automatically override the speakers in that particular zone
of
a distributed audio system. This
can
be accomplished with a variety
of
input/
trigger options for versatility in many different applications.
The
D250LS
is
rated at
50
watts per channel into 8 ohms and
75
watts per
channel into 4 ohms. With the Stereo/Bridge Mono switch in the Bridge Mono
position, both amplifier channels
are
combined for a higher powered mono
output.
In
bridged mode the
D250LS
is
rated at 150 watts
of
power intoasingle
8-ohm load.
Each
amplifier
output
channel incorporates robust protection
circuitry for safety and reliability under extreme circumstances.
Thermal Protection
All Russound amplifiers
are
designed with special circuitry
to
safeguard the
amplifier under a thermal overload condition. Thermal protection mode
can
only engage when the unit
has
been run at high volume for extended periods
of
time
without
adequate ventilation and/or when speaker impedances
are
below the minimum
levels_
for the amplifier.
If
this fault occurs, turn
off
the
amplifier, and check that the speaker impedance rating
is
above the minimum
rating. Also check for adequate ventilation around the amplifier and make
adjustments
if
necessary.
Once the unit
has
cooled
to
safe
operating temperatures, the amplifier may
be
powered back on.
Protection Circuitry
All Russound amplifiers
are
designed with special circuitry
to
safeguard the
amplifier under a short-circuit condition. A faulty speaker
can
also
cause
a
short circuit condition. Ifthis fault condition occurs, turn
off
the amplifier and
check speakers for short circuit conditions when appropriate.
4
Russound D250LS Installation
Manual
Rev.2

Rev.2
t~Russound
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0
D250LS
POWER AMPLIFIER
~
11
-.........
Power Switch I LED
Line Input
12VDC Trigger in/out
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3137900
L a X! A RISKO;ELECTR,:SHOCK A ( E
- ~ ~ OONOTOPEN .....
• WARNING: SHOCK HAZARD- DO NOT OPEN
AVIS: RISQUE DE CHOC ELECTRIQUE- NES PAS OUVRIR
-This unit contains no user serviceable parts
Bridge L 12VDC
Trigger
lOOmA
@
IN
R@ @g g
0@
'-..../
Dela OUT
T" y
.• 1me
R Gain L
Video
Video Input Gain Controls DelayTime
D250LS Front Panel
Default Input
Default
CAUTION
MINIMUM SPEAKER
IMPEDANCE STEREO MODE
ONE PAIR 40 TWO PAIRS 80
ONE 80 SPEAKER B ONLY
Stereo
Stereo/Bridge Switch
D250LS Rear Panel
Speaker Outputs
Amplified
In
RussoundD250LS Installation Manual
FRONT AND REAR PANEL
I
Fuse Receptacle
100-240V"', 50-60Hz, 150W
AC Input
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5

FRONT AND
BACK
PANEL
FEATURES
PowerLED
On
start-up, the first
LED
lights red
to
show power on. When the amplifier
goes into standby, the
LED
will
light
amber.
PowerSwitch
Turns the amplifier on/off. This switch does
not
disconnect the main power
feed from the amplifier; this requires
that
the
power cord be unplugged from
the outlet.
Line
Input
The Line audio
input
is
a sensing
input
that
will activate
the
amplifier when
an
audio signal from a source
is
present. Only the Left
input
is
used for bridged
mode operation.
Video
Input
The Video
Input
is
a sensing
input
that
activates the
D250LS
when a video
signal
is
present.
Gain Controls
Left and Right gain controls independently adjust the sound level for each
channel. When used in the bridged mode onlythe Left control
is
used.
Delay
Time
Muting delay
can
be adjusted from about 5 seconds
to
4.5
minutes. When
an
audio signal
is
not
present, this delay setting will automatically switch the amp
to
the Default
input
mode after the preset period
of
time.
12VDCTrigger
In/Out
The
12V
Trigger
In
controls
the
amplifier switching from the default
input
(distributed audio system)
to
a local source. The Trigger
Out
provides 1
OOmA
12V max. This
can
be used
to
drive other 12V triggered devices. The delay and
audio sensing are bypassed when the 12V trigger
input
is
used.
Stereo/Bridge
Mono
Switch
Sets
the pair
of
amplifier channels for stereo or bridged
mono
operation.
Default
Input
Default
Input
is
a pass-through
input
for the whole-house system.
If
no signal
is
input
to
the
"Line In" or
the
"Amplified
In,"
the
Default
input
will be connected
directly
to
the A and Bspeaker
output.
Amplified
In
The amplified
In
is
a sensing
input
that
is
used
to
amplify a high-level signal
from a small amplifier or
TV.
SpeakerAlB Outputs
The A and B speaker
outputs
are in parallel
to
the
amplifier
output.
The
minimum
load in stereo mode
is
4 ohms.This can be used
to
drive
up
to
2 pairs
of
8-ohm speakers or 1 pair
of
4-ohm speakers. The
minimum
load impedance
for bridged mode operation
is
8 ohms, Speaker Bonly.
Fuse Receptacle
Holds a replaceable fuse for
AC
power
input
connection.
Fuse
rating for North
America and for Europe
is
T3.15AL
250V.
ACinput
The autoswitching
AC
voltage
input
for the North American model
is
100-125
VAC
at 60Hz (European model, 220-240VAC at 50Hz). This receptacle accepts
a 3-prong
IEC
320 type connector. A detachable
3-
terminal power cord
is
included.
6
Russound D250LS Installation
Manual
Rev.2

The
D250LS
amplifier
can
be set on a tabletop or wall-mounted
with
screws
or hook and loop tape. Rack-mounting
ears
are
included
to
install either one
D250LS
in a 1Uspace or
two
units in a 1U
space.
Wall Mounting
The amplifier comes with
two
wall mounting brackets and attachment
screws.
There
are
two
attachment locations on each side
of
the amplifier for
more mounting options. Hook and loop tape
can
be used
as
well.
Rack
Mounting
The
rack mounting
ears
support either one or
two
amps in a single rack
space.
To
install one amplifier in a rack
space,
use
the long ear and one
of
the wall-
mount
brackets.The unit
can
be mounted either
to
the left or right side
of
the
rack
space.
For
two
units in one rack
space,
use
the flat plate
to
support and connect
them, and
use
one wall-mount bracket on each outer side
of
the units.
When using the
two-unit
mounting option, the small side ventilation slots on
the amps will be next
to
one another in the middle
of
the rack
space.
To
avoid
overheating situations, make sure the copious
top
panel ventilation holes
are
not
blocked.
Rev.2
RussoundD250LSInstallation
Manual
INSTALLATION OPTIONS
Wall mounting option
Single unit rack mounting option
Dual unit rack mounting option
7

LOCAL SOURCE SYSTEM CONFIGURATION
The
D250LS
can
be used
as
a single-source two-channel zone amplifier,
or
as
a local-source amplifier
that
automatically switches between a default
source
(e.g.,
a whole-house audio distribution system) and a local source
(e.g.,
atelevision set in the bedroom
or
a
PC
in the office).
AN
RCA
Cables
Line Outputs
Video
.-------1Right
.------I
Left
00
'-../ '-../
/
_....../"'/
/
//
/ /
//
Loca
ISource (TV)
0@
'-../
( Default
CAUTION
MINIMUM
SPEAKER
IMPEDANCE
STEREO
MODE
ONE
PAIR
40
lWO
PAIRS
80
ONE
80
SPEAKER
B
ONlY
Stereo
Bridge
Mono
R Gain L Delay
OUT
Time
(
Amplified
In •
Optional video sensing Amplified
input
from audio
distribution system
Speaker
Cable
Connections
for
local source override
of
whole-house system
8
RussoundD250LSInstallation
Manual
Amplified
output
to
room speakers
4-8 Ohm Speakers
--
-
100-240V-,
50-60Hz,
150W
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D2SOLS
Amplifier
Rev.2

When the amplifier
is
in bridged mode operation, both the left and right
channels
are
combined for a higher powered mono output.
For
bridged amplifier operation, turn
off
the power
to
the amplifier and
connect
an
8-ohm minimum load
to
the Speaker Boutput.
Following the Bridge Mode markings in
red
on the back
of
the amplifier:
Connect the negative lead
(-)
of
the speaker cable
to
the
R+
terminal. Connect
the positive lead
(+)
of
the speaker cable
to
the
L+
terminal.
Set
the Stereo/
Bridge Mono switch
to
Bridge Mono, connect the Line
In
feed from asource
to
the Left Line
In
connection only and restore power
to
the amplifier.
RCA
Cable
from
source
-
--...
'\
\
\
/
(-)
Connections for bridged modeoperation
Rev.2 Russound D250LS Installation
Manual
/
Speaker
Cable
BRIDGED
OPERATION
D250LS
Amplifier
8
Ohm
Speaker
9

DUAL UNIT SETUP
The D250LS can be used in a side-by-side configuration using the optional
rack mounting kit. This feature makes
it easy to add amplification to two
controllers or two zones (e.g., on the MCA-CS controller).
The example shown features two D250LS amps connected to an MCA-CS,
zones 7 and 8. One amp adds power through bridged mode for an outdoor
zone. The other amp powers a pair
of speakers in azone for normal operation.
RCA Cable
D250LS Amplifier
Connections for bridged
mode operation
8
Ohm Speaker
MCA-CS Controller
RCA Cable
Connections for normal operation
4-8
Ohm Speakers
Configuration showing 2 D250LS Amplifiers using optional rack mount kit
10 RussoundD250LS
Installation Manual Rev.2

D250LSAmplifier
Continuous Output Power:
SOW
per channel at 8 ohms
(<0.3o/o
THD+N)@ 1kHz 75W per channel at 4 ohms
150Wat 8 ohms, 2 channels bridged
Distortion THD+N: <0.3% from 20Hz
to
20kHz for
SOW
into
8 ohms
<0.05o/o
from 20Hz
to
20kHz for 1
W
into
8 ohms
Signal-to-Noise Ratio: >112dB A-weighted
Channel Separation: >60dB@ 1 kHz
Frequency Response: 20Hz
to
20KHz+/-0.4dB
Input Sensitivity: 70mVfor 1
W at 8 ohms
SSOmV
for
SOW
at 8 ohms
Input Impedance: 47kohms Line
Input
Voltage Gain: 32dB
DelayTime: 5 seconds
to
5 minutes
InputTrigger:
12VDC
1
Okohms
Output
Trigger:
12VDC
1
OOmA
max
Power Requirements:
NorthAmerican
and
European Models:
(Autoswitching Power Supply) 1
OOVAC
to
240VAC
50/60Hz 2.5A
IEC
320 type connector
with
3 terminal
detachable powercord
Fuse
Rating: T3.15AL/250V
Standby Power:
~0.5
Watts
Dimensions: 8.5" W x 1
0.5" D x 1.75" H
(21.59 x 26.67 x 4.45 em)
Weight: 4.65 I
bs.
(2.1
kg)
The
D250LS
Amplifier
meets
EU
Standby
Power
Requirements
TECHNICAL SPECIFICATIONS
/WARRANTY
Warranty
The Russound
D250LS
Amplifier
is
fully guaranteed against all defects in materials and
workmanship for
two
(2)
years from
the
date
of
purchase. During this period, Russound
will replace any defective parts and correct any defect in workmanship
without
charge
for either parts or labor.
For
this warranty
to
apply,
the
unit
must be installed and used according
to
its written
instructions.
If
service
is
necessary,
it
must be performed
by
Russound. The
unit
must
be returned
to
Russound at
the
owner's expense and
with
prior written permission.
Accidental damage and shipping damage are
not
considered defects, nor
is
damage
resulting from abuse
or
from servicing by
an
agency
or
person
not
specificallyauthorized
in
writing
by Russound.
This Warranty does
not
cover:
• Damage caused by abuse, accident, misuse, negligence, or improper installation
or
operation
• Power surges and lightning strikes
• Normal wear and maintenance
• Products
that
have been altered
or
modified
• Any
product
whose identifying number, decal, serial number, etc.
has
been altered,
defaced or removed.
Russound sells products only
through
authorized Dealers and Distributors
to
ensure
that
customers obtain proper support and service. Any Russound
product
purchased
from
an
unauthorized dealer or
other
source, including retailers, mail order sellers and
online sellers will
not
be honored
or
serviced under existing Russound warranty policy.
Any
sale
of
products by
an
unauthorized source
or
other
manner
not
authorized by
Russound shall void
the
warranty on
the
applicable product.
Damage
to
or destruction
of
components due
to
application
of
excessive
power
voids
the
warranty on those parts.
In
these
cases,
repairs will be made on
the
basis
of
the retail
value
of
the
parts and labor.
To
return for repairs,
the
unit
must be shipped
to
Russound
at
the
owner's expense, along
with
a note explaining
the
nature
of
service required.
Be
sure
to
pack
the
unit
in a corrugated container
with
at least three
(3)
inches
of
resilient
material
to
protect
the
unit
from damage in transit.
Before returning a
unit
for repair, call Russound at [phone] for a Return
Authorization number. Write this
number
on the shipping label and ship to: Russound,
ATTN:
Service, 5 Forbes
Road,
Newmarket,
NH
03857
Due
to
continual efforts
to
improve product quality
as
newtechnology and techniques
become available, Russound/FMP, Inc. reserves
the
right
to
revise system specifications
without
notice.
Rev.2 RussoundD250LS Installation
Manual
11

D250LS
2-Channel Power
Amplifier
with
Local Source
Switching
Installation
Manual