DPA-1.2
Instruction Manual
2 Channel Amplifier
with Auto A/B Selector
Conforms to
UL 6500
Certified to
CSA C22.2 No1-94
NEWDMAPRAKE-T,1N.2H USA
68835
Russound
DPA-1.2
Tested to Comply
with FCC Standards
FOR HOME OR OFFICE USE
POWER
NEWMARKET
, NH USA
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VIDEO
INPUT
SENSING
GAIN
D
E
LINE INPUT
SENSING
12V
TRIG
S
IG
N
E
D
L
R
IN
T
H
E
DELAY
U
S
A
INPUT
5
1
SE
R
IA
L
#
L
4
2
3
12VTRIG
WARNING : SHOCK
HAZARD – DO NOT OPEN
OUT 100mA
MADE IN
R
T
A
IW
AN
AVIS : RISQUE DE CHOC
ELECTRIQUE – NES PAS
OUVRIR.
SPEAKER AOUT
AMPLIFIED INPUT
* FOR BRIDGED OPERATION
SEE MANUAL
SENSING
AC
120V
60Hz
1.5A~
DEFAULT
SPEAKER BOUT
AMPLIFIED INPUT
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.
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.
16. Damage Requiring Service - The appli-
ance should be serviced by qualified
service personnel when:
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 inter-
nal components temperature may rise
and shorten the life of the compo-
nents. 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.
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 operat-
ing instructions. All other servicing
should be referred to qualified service
personnel.
Conforms to
UL 6500
Certified to CSA
C22.2 Nol-94
18. Avoid using a telephone (other than
cordless type) during an electrical
storm. There may be a remote risk of
electric shock from lightning.
Russound
DPA-1.2
19. Do not use the telephone to report a
gas leak near the leak.
Tested to Comply
with FCC Standards
FOR HOME OR OFFICE USE
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
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 suit-
ed 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 out-
put 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 prod-
ucts 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
LINE OUTPUTS
VIDEO
LEFT
AMPLIFIED
OUTPUT
RIGHT
TO ROOM
SPEAKERS
VIDEO
INPUT
SENSING
GAIN
LINE INPUT
12
TRIG
L
R
SENSING
DELAY
INPUT
5
1
L
4
2
3
12VTRIG
WARNING : SHOCK
HAZARD – DO NOT OPEN
OUT 100mA
R
AVIS : RISQUE DE CHOC
ELECTRIQUE – NES PAS
OUVRIR.
SPEAKER AOUT
AMPLIFIED INPUT
* FOR BRIDGED OPERATION
SEE MANUAL
SENSING
AC
120V
60Hz
1.5A~
DEFAULT
SPEAKER BOUT
AMPLIFIED INPUT
AMPLIFIED INPUT
FROM AUDIO
DISTRIBUTION SYSTEM
5
4. FRONT PANEL
Power Switch: Turns on the main power for the ampli-
fier. When the power is on, the LED will be illuminated.
POWER
5. BACK PANEL CONNECTIONS
LINE INPUT
SENSING
Line Input: This line input is a sensing
input that will activate the DPA-1.2
L
when an audio signal is present. When
there is no audio, the amplifier will go
into standby or default back to the
R
whole-house amplified signal if playing.
AMPLIFIED INPUT
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.
SENSING
DEFAULT
Gain Controls: Left and Right gain con-
AMPLIFIED INPUT
trols independently adjust the sound
GAIN
L
R
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.
STEREO
BRGD *
MONO
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.
VIDEO
INPUT
SENSING
6
Speaker Outputs: The A and B speaker outputs are in parallel to the
amplifier output. When connected to the A or B output, either 6-
ohm 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
FIRST DPA-1.2 AMPLIFIER
SECOND DPA-1.2 AMPLIFIER
LEFT SPEAKER
8 OHM
RIGHT SPEAKER
8 OHM
LINE INPUT
LINE INPUT
SENSING
SENSING
L
L
R
R
SPEAKER AOUT
SPEAKER AOUT
INPUT FROM
LEFT LINE
LEVEL OUTPUT
INPUT FROM
RIGHT LINE
LEVEL OUTPUT
SPEAKER BOUT
SPEAKER BOUT
Stereo Operation
6 OHM SPEAKERS
8 OHM SPEAKERS
8 OHM SPEAKERS
SPEAKER AOUT
SPEAKER AOUT
SPEAKER BOUT
SPEAKER BOUT
7
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
12V
TRIG
12VTRIG
OUT 100mA
INPUT
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
DELAY
5
1
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
4
2
3
playing, the DPA-1.2 will switch back to the default input after the
set delay time.
AC
Power: The DPA-1.2 is set at the factory
for operation of either 120 VAC 60Hz or
120V
60Hz
2A~
230 VAC 50Hz. Please reference the
voltage rating on the back panel.
Includes detachable 2 terminal power cord.
8
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
9
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 workman-
ship. 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 per-
formed by an agency or person not specifically authorized in writ-
ing 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
NOTES
11
5 Forbes Rd. Newmarket, NH 03857, USA
ꢀ 603.659.5170 • Fax 603.659.5388
e-mail: [email protected]
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