Page 1
DPA-1.2
Instruction Manual
2 Channel Amplifier
with Auto A/B Selector
LINE INPUT
SENSING
SPEAKER A OUT
12V
TRIG
INPUT
12V TRIG
OUT 100mA
STEREO
VIDEO
INPUT
SENSING
DELAY
BRGD *
MONO
GAIN
SPEAKER B OUT
LR
1
234
5
AC
120V
60Hz
1.5A~
AMPLIFIED INPUT
SENSING
DEFAULT
AMPLIFIED INPUT
AVIS : RISQUE DE CHOC
ELECTRIQUE – NES PAS
OUVRIR.
* FOR BRIDGED OPERATION
SEE MANUAL
L
R
WARNING : SHOCK
HAZARD – DO NOT OPEN
Conforms to
UL 6500
NEWMARKET, NH USA
DPA-1.2
OWER
P
SERIAL #
NEWMARKET, NH USA
DPA-1.2
P
O
W
E
R
S
E
R
IA
L
#
Certified to
CSA C22.2 No1-94
68835
Russound
Tested to Comply
with FCC Standards
FOR HOME OR OFFICE USE
DESIGNED IN THE USA
C
o
n
fo
r
m
s
to
U
MADE IN TAIWAN
L
6
5
0
0
C
e
r
tifie
d
to
C
S
68835
A
C
2
2
.2
N
Russound
o
1
9
4
DPA-1.2
Tested to Comply
w
ith FCC Standards
FOR H
OM
E OR O
FFICE USE
D
E
S
IG
N
E
D
IN
T
H
E
U
S
A
DPA-1.2
MADE IN TAIWAN
Page 2
1. 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
COVER. NO USER - SERVICEABLE PARTS
INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
The lightning flash with arrowhead
symbol, within an equilateral trian-
gle, is intended to alert the user to
the presence of uninsulated
“dangerous voltage” within the
products enclosure that may be of sufficient magnitude to constitute a 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 mainte-
nance (servicing) instructions in
the literature accompanying the appliance.
Double Insulated, when servicing use
only identical replacement parts
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,
and the like.
6. Carts and Stands - The appliance
should be used only with a cart or
stand that is recommended by the
manufacturer. An 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.
7. Wall or ceiling
Mounting - The appliance should be mounted to
a wall or ceiling only as recommended by the manufacturer.
8. 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 DPA-1.2 in a wellventilated location, leaving at least 2
inches (5cm) of clearance on all sides,
top and rear of unit for air flow. If ventilation is blocked, the DPA-1.2 may
overheat and malfunction.
9. Heat - The appliance should be situated away from heat sources such as
radiators, heat registers, stoves, or other
appliances ( including amplifiers ) that
produce heat.
10. 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.
11. Grounding or Polarization - The precautions that should be taken so that
the grounding or polarization means
of an appliance is not defeated.
12. 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.
13. Cleaning - The appliance should be
cleaned only as recommended by the
manufacturer.
2
Page 3
14. Non-use Periods - The power cord of
the appliance should be unplugged
from the outlet when left unused for a
long period of time.
15. 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.
16. Damage Requiring Service - The appliance should be serviced by qualified
service personnel when:
A. The power - supply cord or the
plug has been damaged; or
B. Objects have fallen, or liquid has
been spilled into the appliance; or
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
or the enclosure is damaged.
17. 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.
18. Avoid using a telephone (other than
cordless type) during an electrical
storm. There may be a remote risk of
electric shock from lightning.
19. Do not use the telephone to report a
gas leak near the leak.
Precautions
1. Do Not Touch The DPA-1.2 With Wet
Hands. Do not handle the DPA-1.2 or
power cord when your hands are wet
or damp. If water or any other liquid
enters the DPA-1.2 cabinet, take the
DPA-1.2 to qualified service personal
for inspection.
2. Location of the DPA-1.2 - Do not
expose the DPA-1.2 to direct sun light
or heating units as the DPA-1.2 internal components temperature may rise
and shorten the life of the components. Avoid damp and dusty places.
3. Care – From time to time you should
wipe off the front and side panels and
the cabinet with a soft 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.
Contents
1. Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3. Possible System Configuration . . . . . . . . . . . . . . . . . . . 4
4. Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5. Back Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . 6
6. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7. Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3
Conforms to
UL 6500
Certified to CSA
C22.2 Nol-94
DPA-1.2
Russound
FOR HOME OR OFFICE USE
Tested to Comply
with FCC Standards
Page 4
2. INTRODUCTION
Congratulations on your recent purchase of the Russound DPA-1.2
two-channel amplifier. The DPA-1.2 is a high-current, high-quality
amplifier, which includes automatic A/B switching. The DPA-1.2
two-channel amplifier will amplify a source at the sensing line
input or the sensing speaker level input. Switching between a
default audio source and a local source, the DPA-1.2 is ideally suited for those applications that require automatic switching and
amplification. The DPA-1.2 power output per channel is 35 watts
per channel into 8-Ohms, and 45 watts into 6-Ohms. Bridged output provides 70 watts of power into 8-Ohms. Each amplifier output
channel incorporates thermal, and short circuit protection and
Russound’s unique Dynamic Clipping Sensor that allows for better
headroom and volume without clipping or distortion.
The Russound DPA-1.2 amplifier is built with pride. Fidelity,
Reliability and Quality are the primary objective. Russound products are guaranteed to provide years of enjoyment.
3. POSSIBLE SYSTEM CONFIGURATIONS
The DPA-1.2 can be used as a single-source two-channel zone
amplifier, or as a local-source amplifier that automatically switches
between a default source (such as a whole-house audio distribution
system) and a local source (such as a television set).
4
Page 5
AMPLIFIED
5
OUTPUT
TO ROOM
SPEAKERS
LINE OUTPUTS
VIDEO
LEFT
RIGHT
LINE INPUT
SENSING
L
R
SPEAKER A OUT
SPEAKER B OUT
GAIN
LR
AMPLIFIED INPUT
AMPLIFIED INPUT
STEREO
SENSING
DEFAULT
VIDEO
12V
INPUT
TRIG
SENSING
BRGD *
MONO
INPUT
12V TRIG
OUT 100mA
* FOR BRIDGED OPERATION
SEE MANUAL
DELAY
5
WARNING : SHOCK
HAZARD – DO NOT OPEN
AVIS : RISQUE DE CHOC
ELECTRIQUE – NES PAS
OUVRIR.
AC
120V
60Hz
1.5A~
AMPLIFIED INPUT
FROM AUDIO
DISTRIBUTION SYSTEM
1
234
Page 6
4. FRONT PANEL
Power Switch: Turns on the main power for the ampli-
fier. When the power is on, the LED will be illuminated.
5. BACK PANEL CONNECTIONS
Line Input: This line input is a sensing
input that will activate the DPA-1.2
when an audio signal is present. When
there is no audio, the amplifier will go
into standby or default back to the
whole-house amplified signal if playing.
Speaker Level Input: The speaker level input is a
sensing input that will automatically switch the DPA-
1.2 from the default input to the speaker level input.
This input would be used in place of the line audio
input. An amplified signal from a smaller amplifier or
television can be amplified by the DPA-1.2 for a
cleaner, more dynamic sound.
Gain Controls: Left and Right gain controls independently adjust the sound
level for each channel. When in the
bridge mode, only the right control
is used.
Stereo / Mono Switch: The Stereo /
Mono switch selects stereo or mono for the speaker
outputs. In the Mono position, each Left and Right
output is Mono. The Mono portion is also used for
bridged operation.
Video Input: The Video Input is a sensing input that
will activate the DPA-1.2 when a video
signal is present. When there is no
video, the amplifier will go into standby
or default back to the whole-house
amplified signal if playing.
6
LINE INPUT
SENSING
L
R
GAIN
LR
VIDEO
INPUT
SENSING
POWER
AMPLIFIED INPU T
SENSING
DEFAULT
AMPLIFIED INPUT
STEREO
BRGD *
MONO
Page 7
Speaker Outputs: The A and B speaker outputs are in parallel to the
amplifier output. When connected to the A or B output, either 6ohm or 8-Ohm speakers could be used. When using both A and B
speaker outputs, only speakers with impedance higher than 8
Ohms can be connected. For Bridge amplifier operation, connect
the + of the speaker to the R+ and - of the speaker to the L+ of the
amplifier.
Mono Bridged Operation
Stereo Operation
7
FIRST DPA-1.2 AMPLIFIER SECOND DPA-1.2 AMPLIFIER
LINE INPUT
SENSING
L
LEFT SPEAKER
8 OHM
STEREO
BRGD *
MONO
LINE INPUT
SENSING
L
RIGHT SPEAKER
8 OHM
STEREO
BRGD *
MONO
R
INPUT FROM
LEFT LINE
LEVEL OUTPUT
8 OHM SPEAKERS
SPEAKER A OUT
SPEAKER B OUT
BRGD *
MONO
STEREO
SPEAKER A OUT
8 OHM SPEAKERS
R
INPUT FROM
RIGHT LINE
LEVEL OUTPUT
6 OHM SPEAKERS
SPEAKER A OUT
SPEAKER B OUT
SPEAKER A OUT
STEREO
BRGD *
MONO
SPEAKER B OUT
SPEAKER B OUT
Page 8
12-Volt Trigger In and Out: The Trigger
output is 12 volts at a maximum of
100mA. This can be used to drive a
relay- operated AC outlet or other 12-volt
triggered devices. The 12-volt trigger
input is used to activate the DPA-1.2 independently from the auto
turn on sensing circuit, in which case the delay, video and audio
sensing are bypassed.
Delay Time: The delay timecan be adjusted from about
0.3 minutes to 8 minutes. The DPA-1.2 amplifier will
automatically switch to the default input signal after the
delay setting. (When set between 4 and 5, defeats delay
setting). When the audio or video source is no longer
playing, the DPA-1.2 will switch back to the default input after the
set delay time.
Power: The DPA-1.2 is set at the factory
for operation of either 120 VAC 60Hz or
230 VAC 50Hz. Please reference the
voltage rating on the back panel.
Includes detachable 2 terminal power cord.
8
12V
TRIG
INPUT
12V TRIG
OUT 100mA
DELAY
5
4
1
3
AC
120V
60Hz
2A~
2
Page 9
9
6. SPECIFICATIONS
Audio power output: Continuous 35W @ 8 Ohms,
45W @ 6 Ohms.
Frequency response: 20HZ to 20KHZ -0.3dB.
Total harmonic distortion: 0.05% 8 Ohm .075% 6 Ohm
Input sensitivity: 400mV line
Input impedance: 22k Line Input
Signal to noise ratio: 85dB
Input trigger: 12VDC 10k
Output trigger: 12VDC 100mA
Auto off delay time: 2 to 10 minutes
Primary fuse: T2.0A /250V
Power requirements: Factory set for 120 VAC 60Hz or
230 VAC 50Hz.
2 terminal detachable power cord
For 230VAC operation, use a power
cord (not supplied) rated for 240VAC
2A or higher.
Weight: 9 lbs.
Dimensions: 6”W x 10”D x 3.5”H
Page 10
7. WARRANTY
The Russound DPA-1.2 is fully guaranteed for two (2) years from
the date of purchase against all defects in materials and workmanship. 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 owners expense and with prior written permission.
Accidental damage and shipping damage are not considered
defects under the terms of the warranty. Russound assumes no
responsibility for defects resulting from abuse or servicing performed by an agency or person not specifically authorized in writing by Russound. Damage to or destruction of components due to
improper use voids the warranty. In these cases the repair will be
made at the owners expense. To return for repairs, the unit must be
shipped to Russound at the owners expense, along with a note
explaining the nature of the service required. Be sure to pack in a
corrugated container with at least 3 inches of resilient material to
protect the unit from damage in transit.
10
Page 11
NOTES
11
Page 12
5 Forbes Rd. Newmarket, NH 03857, USA
☎ 603.659.5170 • Fax 603.659.5388
e-mail: tech@russound.com
Come visit us at:
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