Mackie 1640 User Manual download pdf (Page 5)

Owner’s Manual

Getting Started

READ THIS PAGE!!

Even if you’re one of those people

who never reads manuals, all we ask

is that you read this page now before

you begin using the Onyx 1640. You’ll

be glad you did!

Zero the Controls

1. Turn down the channel GAIN, AUX, and Fader con-

trols, and center the channel EQ and PAN controls.

2. Set all push button switches to their “out” positions.

3. In the output section (right hand side), turn all the

rotary knobs “down,” the switches “out,” and the

SUB 1-4 and MAIN MIX faders down.

4. Turn the POWER switch off.

Connections

If you already know how you want to connect the Onyx

1640, go ahead and connect the inputs and outputs

the way you want them. If you just want to get sound

through the mixer, follow these steps:

1. Plug in the detachable linecord, connect it to an AC

outlet, and turn on the Onyx 1640’s POWER switch.

Plug a microphone or other signal source into

channel 1’s MIC or LINE input.

3. Connect cords from the Onyx 1640’s MAIN OUTS

(XLR connectors or 1/4" TRS connectors on the

rear panel) to your ampliﬁ er.

4. Hook up speakers to the amp and turn it on. If the

ampliﬁ er has level controls, set them however the

manufacturer recommends (usually all the way up).

Set the Levels

To set the channel GAIN controls, it’s not even neces-

sary to hear what you’re doing at the outputs of the

mixer. If you want to listen while you work, plug head-

phones into the PHONES jack on the front panel, then

set the PHONES knob about one-quarter of the way up.

The following steps must be performed one channel at

a time.

1. Push in the channel’s SOLO [17] switch. Make sure

the SOLO MODE [34] switch is up (PFL).

2. Play something into the selected input. This could

be an instrument, a singing or speaking voice, or

a line input such as a CD player or tape recorder

output. Be sure that the volume of the input source

is the same as it would be during normal use. If it

isn’t, you might have to readjust these levels during

the middle of the set.

3. Adjust the channel’s GAIN [4] control so that the

LEDs on the RIGHT meter [31] stay around “0” and

never go higher than “+7.”

4. If you’d like to apply some EQ, do so now and return

to step 3. Remember to push in the EQ IN/OUT but-

ton or the EQ controls won’t do anything.

5. Disengage that channel’s SOLO switch.

6. Repeat for each channel.

Instant Mixing

1. Leave the microphone plugged into channel 1 and

connect a keyboard, guitar or other instrument to

channel 2. Be sure to “Set the Levels” for channel 2

as described above.

To get sound out of the speakers, turn up channel 1

and 2 faders to the “U” mark, push in the MAIN MIX

ASSIGN buttons on channels 1 and 2, and slowly turn

up the MAIN MIX fader to a comfortable listening level.

3. Sing and play. You’re a star! Adjust the faders for

channels 1 and 2 to bring your voice and your

instrument up and down to create your own mix.

Other Nuggets of Wisdom

• For optimum sonic performance, the channel and

MAIN MIX faders should be set near the “U” (unity

gain) markings.

• Always turn the MAIN MIX fader and CONTROL

ROOM knob down before making connections to

and from your Onyx 1640.

• When you shut down your equipment, turn off the

ampliﬁ ers ﬁ rst. When powering up, turn on the

ampliﬁ ers last.

• Never listen to loud music for prolonged periods.

Please see the Safety Instructions on page 2 for

information on hearing protection.

• Save the shipping box! You may need it someday,

and you don’t want to have to pay for another one.

That’s it for the “Getting Started” section. Next comes

the “Hookup” section that shows you some typical ways

that you might use the Onyx 1640 in real applications.

After that, you can take the grand tour of the mixer,

with descriptions of every knob, button, input, and

output. We encourage you to take the time to read all of

the feature descriptions, but at least you know it’s there

if you have any questions.

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Mackie 1640 User Manual Page 5

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