soothing green light adjacent to it glows. To turn the amp off, push the lower half. It’ll click again and the green light will extinguish.
When you power up the M•1200/M•1400, a
If you shut down your
system, turn off your ampli-
fiers first. When powering
up, turn on your amplifiers last. This way, equipment
feeding the amp won’t “pop” or “thud” when it’s powered up or down.
POWER CORD
We all know what a power cord is. The M•1200 and M•1400 have big beefy cords built in. Plug the power cord into a
For current-delivery
purposes, the M•1200/
M•1400’s voltage source
(wall outlet, extension cords, or power strips)
must be capable of continuously delivering 15 amps. And for safety reasons, that source must be a
SPEAKER OUTPUTS
Some call them “GR” jacks, others call them “Banana” jacks, but we prefer to call them “Binding Posts.” You can call them whatever you like (except late for supper). These termi- nals are your standard fare.
To use the binding post outputs, you can terminate your speaker cables with single or double banana plugs, spade lugs, or leave them unterminated: Unscrew the amp’s binding posts enough to reveal the holes on their sides, then insert your stripped wires (stripped about 3/8" back) into the holes and retighten the posts (finger tight is fine — please don’t reef on them with a wrench!). Be careful that no runaway strands touch the chassis or other terminals.
The red posts are labeled “+,” which means positive. The black posts are labeled
Using
Note (M•1200 only): In addition to the binding posts, the M•1200 also has 1/4" TS
1CHANNEL / BRIDGE / MONO
LOW CUT | INPUT |
FILTER |
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TYPICAL | BALANCED |
OR | |
35 Hz | UNBALANCED |
| STAGE |
| MONITOR |
AMP MODE
STEREO | MONO |
| BRIDGE | |||
TYPICAL |
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INPUT
BALANCED
OR
UNBALANCED
CHANNEL 2
LOW CUT
FILTER
TYPICAL
35 Hz
STAGE
MONITOR
100 Hz | OUTPUT APPLICATION | 100 Hz |
OFF | 170 Hz |
| FULL |
| SUB |
| OFF | 170 Hz |
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| RANGE |
| WOOFER |
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| CONSTANT DIRECTIVITY | LIMITER (CH1 & CH2) | FREQUENCY |
| CONSTANT DIRECTIVITY | |||
| HORN EQ/AIR EQ |
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| HORN EQ/AIR EQ |
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| STEREO |
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4.5 kHz |
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| 125Hz |
| 4.5k Hz | |||
ON | TYPICAL |
| ON | |||||
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2k Hz | 5.6k Hz |
| ON | OFF | 63Hz |
| 2k Hz | 5.6k Hz |
| AIR EQ | OFF |
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| OFF |
| AIR EQ |
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| TYPICAL |
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| TYPICAL |
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| THRU |
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| THRU |
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15