Mackie M1200/M1400 owner manual 1/4 TS connectors are wired Tip = hot + and sleeve = cold

•The 1/4" TRS inputs are wired tip = hot (+), ring = cold (–) and sleeve = shield (ground), and can accept either balanced (TRS) or unbalanced (TS) cables.

8.In MONO and BRIDGE modes, connect an input cable to CHANNEL 1’s INPUT only, and nothing into CHANNEL 2’s INPUT. (You could plug into CHANNEL 2’s input, it just won’t do anything.)

9.In STEREO and MONO modes, connect speaker cables to the SPEAKER OUTPUTS , either binding post or 1/4" TS for the M•1200, or binding post or Speakon® for the M•1400:

•The binding post connectors are wired red = hot (+) and black = cold (–).

•The 1/4" TS connectors are wired

tip = hot (+) and sleeve = cold (–).

10.In BRIDGE mode, connect the binding post cable like this: the hot (+) side goes in the

CHANNEL 1 SPEAKER OUTPUTS red post and the cold (–) side goes in CHAN- NEL 2’s red post. Plug nothing into the black posts, 1/4" TS jacks, or Speakon jacks.

11.Connect the other ends of the speaker cables to your loudspeakers.

12.Plug the amp’s power cord into a

3-prong AC outlet capable of delivering at least 15 amps.

13.Make sure your signal source (the cables feeding the M•1200/M•1400’s inputs) is powered up and delivering signal to the amp.

14.Turn the M•1200/M•1400’s POWER switch on and verify that the signal present (SIG) LEDs are blinking.

15.Slowly turn both GAIN controls up: You should hear the music and see the SIG and meter LEDs flashing. If the topmost LEDs (named OL, for OverLoad) are flashing, turn down either the GAIN controls on the amp or the source signal’s output level controls (i.e., master faders). The point is: The OL LEDs should never light up.

16.For quieter listening, it is preferable to adjust the amp’s GAIN controls rather than the source signal’s output level (unless you have the source’s control all the way up!).

17.Start dancing, but don’t let the ants out of your pants.

Things You Must Remember:

• Never plug amplifier outputs into anything except speakers (unless you have an outboard box specifically designed to handle speaker-level signals).

•Before making connections to an amp or reconfiguring an amp’s routing, turn the amp’s level (GAIN) controls down, turn the power off, make the changes, turn the power back on, and then turn the level controls back up.

•If you shut down your equipment, turn off the amplifiers first. When powering up, turn on the amplifiers last.

•Save the shipping boxes! You may need them someday, and you probably don’t want to have to pay for them again.

(MONO BRIDGE)

1200 WATTS

4 OHM LOAD MIN.

600 WATTS CH

2 OHMS LOAD MIN.

120 VAC 50/60 Hz 1500 WATTS

	CAUTION		WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
	RISK OF ELECTRIC SHOCK		EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. DO NOT REMOVE COVER.
			NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED PERSONNEL.
	DO NOT OPEN		AVIS: RISCQUE DE CHOC ÉLECTRIQUE — NE PAS OUVRIR
	REPLACE WITH THE SAME TYPE FUSE AND RATING.			UTILISE UN FUSIBLE DE RECHANGE DE MÊME TYPE.
	DISCONNECT SUPPLY CORD BEFORE CHANGING FUSE			DEBRANCHER AVANT DE REMPLACER LE FUSIBLE
		MONO
+		BRIDGE	–
CH				CH

1 2

++

– –

SPEAKER OUTPUTS

SERIAL NUMBER MANUFACTURING DATE

CONCEIVED, DESIGNED, AND MANUFACTURED BY MACKIE DESIGNS INC • WOODINVILLE • WA 98072 • USA • MADE IN USA • PATENTS PENDING

1 CHANNEL / BRIDGE / MONO			AMP MODE		INPUT	CHANNEL 2
LOW CUT	INPUT	STEREO	MONO	BRIDGE		LOW CUT
FILTER	BALANCED	TYPICAL			BALANCED	FILTER
TYPICAL						TYPICAL
	OR				OR
35 Hz	UNBALANCED				UNBALANCED	35 Hz
STAGE						STAGE
MONITOR						MONITOR
100 Hz		OUTPUT APPLICATION				100 Hz

OFF	170 Hz		FULL		SUB		OFF	170 Hz
			RANGE		WOOFER
	CONSTANT DIRECTIVITY		LIMITER (CH1 & CH2)		FREQUENCY		CONSTANT DIRECTIVITY
	HORN EQ/AIR EQ						HORN EQ/AIR EQ
4.5 kHz			STEREO		125Hz		4.5k Hz
		ON	TYPICAL			ON
2k Hz	5.6k Hz		ON	OFF	63Hz		2k Hz	5.6k Hz
	AIR EQ	OFF				OFF		AIR EQ
		TYPICAL				TYPICAL
			THRU			THRU

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