AMP MODE
This
The switch alters the input signal routing within the amplifier. Shipped from the factory, it is set to STEREO, correct for about 90% of applications (hence the TYPICAL indicator near it). The switch should only be configured when
the amplifer is turned off.
STEREO
This is the typical setup for amplifying stereo signals. There are separate left and right inputs, and separate left and right outputs. The two channels are independent of each other.
MONO
This mode (also known as
•There are one or two inputs and two mono outputs.
•You can feed either channel or both.
•The inputs are summed (before the GAIN controls) and the mix sent to both amplifier channels.
•The GAIN controls are still independent.
•The speakers are connected as for normal stereo use.
BRIDGE
In BRIDGE mode (also known as Bridged- Mono) the two channels of the M•800 are combined internally and can deliver up to 800 watts into a single 4 ohm speaker.
•There are one or two inputs and one mono output.
•You can feed either channel or both.
•CH 2’s GAIN control will have no effect.
•The amplifier channels are internally combined in series.
•Only one speaker is used and it is connected in a special way. Read on.
Some examples of using the BRIDGE mode:
•Two M•800s can be used to create a powerful stereo system, each driving one speaker.
•You can use one amp to power a mono system, such a center speaker or PA.
•Multiple M•800s can be used in theater surround systems, each driving one speaker.
To use the M•800 in BRIDGE mode:
1.Turn off the power.
2.Set the AMP MODE switch to BRIDGE.
3.Connect the positive side of the speaker cable to the CH 1 red (+) binding post.
4.Connect the negative side of the speaker cable to the CH 2 red (+) binding post.
5.Use only the CH 1 GAIN control.
6.The M•800 black binding posts are unused.
WARNING: In BRIDGE
mode, both connections to
your speaker are live; that
is, neither is grounded
through the chassis (be- cause the M•800 black
binding posts are not used).
Take great care to read and follow all safety instructions. The M•800 is capable of up to 85V AC across the speaker terminals.
Note: The calibration scales of the GAIN
control only apply when using 4 ohm speakers.
| (MONO BRIDGE) |
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| 800 WATTS |
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| 4 OHM LOAD MIN. |
| 120 VAC 60 Hz |
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| 400 WATTS CH |
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| 2 OHMS LOAD MIN. |
| 1500 WATTS |
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| MONO | 1 CHANNEL |
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| BRIDGE |
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CH | CH |
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1 | 2 | INPUT | LOW CUT | CONSTANT DIRECTIVITY | |
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| FILTER | HORN EQ/AIR EQ | |
+ | + |
| TYPICAL |
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| 35 Hz | STAGE | 4.5k Hz | ||
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| MONITOR |
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| 100 Hz | OFF ON |
– | – |
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| BAL/UNBAL | OFF | 170 Hz | 2k Hz 6k Hz |
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| AIR EQ |
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| TYPICAL |
| SPEAKER OUTPUTS |
| THRU |
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AMP MODE
STEREO MONO | BRIDGE |
TYPICAL
CAUTION | WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT | SERIAL NUMBER | MANUFACTURING DATE | ||||
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| EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER. |
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RISK OF ELECTRIC SHOCK | NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL. |
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| DO NOT OPEN | AVIS: RISQUE DE CHOC ELECTRIQUE — NE PAS OUVRIR |
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CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE |
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WA • 98072 • USA • MADE IN USA • PATENTS PENDING • COPYRIGHT ©1999 |
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THE FOLLOWING ARE TRADEMARKS/REGISTERED TRADEMARKS OF MACKIE DESIGN INC.: "MACKIE", "FR SERIES", & THE "RUNNING MAN" FIGURE | |||||||
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| CHANNEL 2 |
LIMITER | CONSTANT DIRECTIVITY | LOW CUT |
| INPUT | |||
HORN EQ/AIR EQ |
| FILTER |
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| TYPICAL |
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| 4.5k Hz | 35 Hz | STAGE |
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| MONITOR |
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OFF ON | OFF ON |
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| 100 Hz |
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| 2k Hz | 6k Hz | OFF | 170 Hz |
| BAL/UNBAL |
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| AIR EQ |
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TYPICAL | TYPICAL |
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THRU
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