MACKIE FRS1700 - Manual (Page 9)

9
Owner’s Manual
Owner’
s Manual
AMP MODE
CHANNEL 2 CHANNEL 1 BRIDGED
BRIDGED
CH 1 CH 2
CLIP LIMIT
FILTER
SUBSONIC @ 30Hz
PIN
1+
1
PIN
1+
2+
1+
1
PIN
2+
2
PIN
1+
1
SPEAKER OUTPUTS
Use only class 3 wiring
POWER CONSUMPTION 2000 W
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE
FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE,
AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE
THAT MAY CAUSE UNDESIRED OPERATION.
AVIS: RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR
MOISTURE. DO NOT REMOVE COVER. NO USER SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
AVIS: N'OUVREZ PAS LA COUVERTURE. N'EXPOSEZ PAS CET ÉQUIPEMENT À LA PLUIE OU À L'HUMIDITÉ.
FRS • 2800
FAST RECOVERY POWER AMPLIFIER
Rear Panel Features
5. Power Cord Socket
This is where you connect the detachable power cord
included with your amplifier. Plug the other end of the
power cord into an AC outlet properly configured with
the voltage required for your particular model.
Be sure the AC outlet can supply enough current to
allow full power operation of all the amplifiers plugged
into it. The outlet should be a three-prong socket that
matches the power cord.
WARNING: Bypassing the plug’s safety ground
pin can be dangerous. Don’t do it!
6. Fan Vents
Do not obstruct the ventilation openings
of the amplifier. Fans move air over the
heatsinks to cool down the power transistors.
If these vents are restricted then the amplifier may
overheat and shut down.
7. Speaker Outputs
There are two options for connecting speakers:
binding posts and NL4 connectors.
Since the connectors are wired in parallel
(e.g., channel 1 binding post and NL4 are in parallel,
and channel 2 binding post and NL4 are in parallel), you
can connect a speaker to each connector, as long as the
total impedance per channel is not less than two ohms.
• Two 8 ohm speakers in parallel equals 4 ohms.
• Two 4 ohm speakers in parallel equals 2 ohms.
When the amplifier is used in bridged-mono mode, use
either the center NL4, or the two red binding posts to
connect a single speaker.
In bridged-mono mode, do not use a speaker
impedance less than 4 ohms. Be careful
as both speaker wires are live. Do not
connect the speaker wires to any external device
that is grounded.
8. Combo Inputs
These combination inputs are for connecting
balanced XLR plugs or 1/4" plugs.
The XLR inputs are wired conventionally, with pin 2
hot, pin 3 cold, and pin 1 ground.
The 1/4" inputs are for connecting balanced 1/4" TRS
or unbalanced TS plugs from line-level sources.
Use balanced connections where possible, as these
offer better rejection of noise than unbalanced lines.
Use high-quality, three-conductor shielded cable for
balanced connections. The better the shield, the better
the audio signal is protected from induced EMI and RFI.
9. Thru Outputs
These male XLR connectors allow you to send the
balanced input signals to other amplifiers, powered
speakers, mixers, or recorders in the system. The line-
level output is a straight copy of what goes in, and the
amplifier level controls and switches have no effect.
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