MIXER ANATOMY: CHAPTER 2

amplifiers are dedicated to the MAINs. If you want to connect a stage monitor, you’ll either need to use a powered speaker or an external power amplifier connected to the MONITOR LINE OUT jack.

The speaker outputs are affected by the MAIN MASTER level control and the MAIN Graphic Equal- izer.

MONITOR Line Out (PPM)

This is a 1/4" unbalanced jack with a line-level signal suitable for driving powered speakers or power amplifiers. The signal is fed pre-fader and pre-EQ from the mixer’s monitor bus. The MONITOR output has its own low-cut (rumble) filter, MONITOR MASTER volume, control and MONITOR graphic equalizer.

MIXER LINE OUT (Mono)

L or R MIXER OUT(Stereo)

These are 1/4" unbalanced line-level jacks that provide the main mixer output(s). The jack is fed from the MAIN mixer bus (left and right busses in the stereo version), following the MAIN MASTER control and MAIN graphic equalizer, and just ahead of the POWER AMP IN jack(s).

You can connect the MIXER OUT to an external power amplifier for more power and more speak- ers. Plugging into these jacks does not interrupt the signal flow to the PPM’s built-in power amplifiers.

POWER AMP IN (PPM)

This is a 1/4” jack that accepts an unbalanced line-level signal. Whatever signal you plug into these jacks is combined with the internal mixer signals and routed to the power amplifiers. You could connect the LINE OUT jacks from another mixer (even another PPM) to the POWER AMP IN jacks to increase the number of channels available.

You could connect the outputs from the opening band’s mixing board to these inputs. This way you don’t have to set up two complete sound systems

—the other band can use their mixer together with your PPM, using its amplifiers and your speakers.

On later production PPM mixers, these jacks are wired in the “normalled through” configuration allowing you to use an Insert Cable for patching in an outboard graphic equalizer, limiter, or crossover network.

 

 

 

 

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Compact Mixer Reference Guide

 

 

 

POWERING UP! – Power supplies and Accessory Power

Compact Mixers

Of course you have to be able to turn your mixer on – but you don’t want to turn it off inadvertently, either. To keep such accidents from happening, we hide the POWER switch on the rear panel of all of the Mackie compact mixers.

There’s a power-on indicator on the front panel. Check your mixer’s manual for its location if it’s not obvious.

At Mackie, our compact mixers have internal power supplies. A standard IEC connector and power cord connects the mixer to an AC outlet. The power cord is an industry-standard item, so if you leave it behind, you won’t have to look too far for a replace- ment. Most computers use the same power cord, and you can buy one at most computer or office supply stores as well as your local Radio Shack or music store.

All Mackie mixers will operate equally well from 50 or 60 Hz power. The Onyx mixers have “world friendly” power supplies that operate from 100 to

240 VAC (and they even ship with two power cords to accommodate US and European outlets). Other models are designed for only a single AC line voltage, depending on the country where you bought it. If you travel world-wide, you’ll need a step-up or step-down transformer in countries that have a different line voltage than what’s specified for your mixer.

8-Bus Console

The 8-Bus console has an outboard power supply with the main power switch on its front panel. The switch is also the power-on indicator.

Connect the power supply to the mixer using the special multiconductor cable provided, then connect the AC power to the power supply.