australian-monitor sy2200 Benutzerhandbuch

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I N S TA L L AT I O N
PA G E  7
S Y N E R G Y   2   –   O P E R AT I O N   M A N U A L
Power Requirements
Power consumption for your model of the Synergy-2 
Series amplifi er is indicated on the rear panel for 
maximum output.
Ensure that your mains voltage is the same as the 
rear panel mains voltage marker (+/- 10%). 
Mounting
Your amplifi er is designed for standard 19” rack 
mounting and occupies 2 EIA rack units (3.5”). The 
mounting centres are: 
Vertical: 3.0” 
(76.2mm)
Horizontal: 18.2” (461.2mm) to 18.7” (473.8mm). 
The slots in the mounting fl ange will accept bolt 
diameters up to 1/4” (6.35mm).
We recommend that you provide additional support 
for the amplifi er, especially if road use is planned, 
as the weight could bend some rack frames. This 
support can be provided by secure shelving, support 
rails or a rear rack mounting strip to match up with 
the rear rack mount ears provided on your Synergy-2 
Series amplifi er.
Cooling
Each channel of your Synergy-2 Series amplifi er is 
cooled by an axial fan which draws cool air from the 
front of the amplifi er and expels the heated air out 
the rear of the amplifi er. These amplifi ers offer two 
speed fans which run at half speed, switching to 
full speed when the internal heatsink temperature 
exceeds 600 C (1280 F).
An unrestricted airfl ow into and out from the ampli-
fi er must be provided. Any restriction of the air fl ow 
will cause heat to build up within the unit and pos-
sibly force the unit into its thermal shutdown mode.
If the amplifi ers are to be operated in an 
environment where the airfl ow is restricted such as 
sealed racks, the cooling should be supplemented 
by extra cooling fans to evacuate the heated air and 
aid the fl ow of cool air through the unit.
Input Wiring
 
 
IMPORTANT:  Do not directly connect pin 
 
1 on the amplifi er’s input  or strapping XLR,
 
to the amplifi er’s chassis, speaker ground or 
 power 
ground!
 
WARNING: Input signal ground is not to 
 
be used as a safety ground (earth).
The input to your amplifi er is a balanced 3-pin 
confi guration and requires all three pins to be 
connected. Only high quality twin-core shielded 
cable should be used. 
When wiring for a balanced source, the connector 
going to the input of your amplifi er should be wired 
as follows:
Pin 1 = GROUND / SHIELD.
Pin 2 = HOT (In Phase - non inverting).
Pin 3 = COLD (Reverse Phase - inverting).
When wiring from an unbalanced source you 
must ensure that pin 3 is connected to pin 1 (input 
ground), either by linking the pins in the input con-
nector or by the source equipment’s output wiring.
When wiring for an unbalanced source:
Pin 1 = GROUND/SHIELD
Pin 2 = HOT (in phase with the amplifi er’s output),
Pin 3 = GROUND/SHIELD (joins to pin 1).
 
NOTE: In-line XLR connectors often have a 
 
termination lug that connects directly to the 
 
chassis of the connector. 
 
IMPORTANT:  Do not link this lug to 
 
pin 1 at the amplifi er’s input as it will defeat 
 
the amplifi er’s input grounding scheme. 
Output Wiring
When wiring to your speakers always use the 
largest gauge wire your connector will accept. The 
longer the speaker lead, the greater the losses will 
be, resulting in reduced power and less damping at 
the load. We recommend using a heavy duty, two 
core fl ex (four core fl ex if bi-amping) 10 to 12 gauge 
(2mm2 to 2.5mm2 or 50/0.25 or equivalent) as a 
minimum.
Binding Post Outputs
When terminating to the 4 mm binding post (banana 
jack) output connectors, banana plugs or bare wires 
can be used. The red terminal is positive and the 
black terminal is negative (ground). 
If running in BRIDGE mode, only the red binding 
posts are used.
When bridging, Channel A provides the positive 
output to the load and channel B provides the 
negative output to the load. 
Speaker Outputs
When using the 4 pole speaker connector for 
speaker output, use only the mating 4 pole in-line 
connector. This connector is designed so that both 
channels can be fed from a single connector.
Two speaker connectors are provided on the 
amplifi er.
The ”Channel A” speaker connector actually carries 
both channel A & channel B outputs (see Figure 6: 
Speaker Connector Wiring Diagrams). 
The ”Channel B” speaker connector carries the 
Channel B output only. 
This arrangement allows you the option of connect-
ing to the outputs separately or together. Connect-
ing through a single connector has the advantage 
of minimising connections, preserving phasing and 
simplifying channel allocation, which is particularly 
important when bi-amping or in bridge mode. 
 
IMPORTANT:  Do not overload your amplifi er 
 
by connecting the channel B output twice!
Channel A is used as the “dominant” channel 
and when sourcing a dual output from Channel A, 
the following standard should normally be used 
(depending on speaker system wiring):
Channel A = Left or Low Frequencies.
Channel B = Right or High Frequencies.
When in bridge mode:
Pin 1+ = Bridge Output Positive
Pin 2+ = Bridge Output Negative.