Mackie CR1604 Owner's Manual download pdf (Page 49)

Many “authorities” tell you that shields

should only be connected at one end. Some-

times this can be true, but for most (99%)

audio systems, it is unnecessary. If you do every-

thing else correctly, you should be able to

connect every component of your audio system

using standard, off-the-shelf connecting cables

that are available at any music store.

Here are some guidelines:

1. All return lines to the stage should be

balanced. At a minimum, they should be

impedance balanced. Remember that you can

balance a line by inserting a piece of equip-

ment inline that has a balanced output.

2. Run your own AC power wiring from the

stage for the mixer and related equipment.

Don’t use the “conveniently located” recep-

tacle thoughtfully provided by the

management for your use. You have no idea

how it’s wired or grounded.

3. Carry an outlet tester, available at any well-

stocked hardware store. Use it to tell you if

the outlet you’re about to plug into is wired

correctly. Consider it cheap insurance.

4. If you carry enough equipment that you

need to wire directly into the electrical

service, then use a voltmeter to ensure that

the line voltage is correct, then use the

outlet tester mentioned in #3, above. Do

this before you connect any of your audio

equipment. Chances are that your 120V

gear won’t be too happy if it sees 220V for

any length of time.

5. Cables that are too long are less likely to

pick up hum if you uncoil them in their

entirety, and then find a place to stow the

excess. Leaving the excess coiled only

helps the cable pick up hum more effi-

ciently.

6. Don’t run unbalanced lines to or from the

stage. It’s not the impedance, it’s the fact

that they’re unbalanced. It’s a good idea to

use a direct box to make the unbalanced

source look like a microphone.

7. For really extreme cases, you may need to

insert 1:1 or isolation transformers into

each return line from the front-of-house

location to your amp racks.

8. Don’t cut the third pin off of the power

cord. Carry some ground-lifter adapters

and use them only when you have to plug

into an ancient two-wire outlet.

9. If you bundle your cables together, don’t

bundle AC wiring and audio wiring to-

gether. Bundle them separately.

10. If your sound system insists on humming,

you may need to teach it the words.

(Roll credits please) Manual written by Jeff

Gilbert, based on a vignette by Ron Koliha,

with tidbits borrowed from almost everywhere.

Manual then defaced with proofreading pens in

the hands of Mackie’s legendary Tech Support

staff. Manual composed on a rinky-dink PC using

a low-budget word processor, then converted

to this amazing piece of work using a 13-story

1000 gigawhopper Macintosh operated by

Mackie’s notorious Advertising staff. Please,

feel free to let us know if you find an error or

stumble over a confusing paragraph. Thank

you for reading the entire manual (we know

you have, or you wouldn’t be here).

Mackie Designs is always striving to improve

our mixers by incorporating new and improved

materials, components and manufacturing

methods. Because we’re always trying to make

things better, we reserve the right to change

these specifications at any time, without notice.

FREE T-SHIRT OFFER

We love to hear what folks have created using

our mixers. If you use your CR1604-VLZ to track

and/or mix a CD that is commercially released,

we’ll trade you a disc for a genuine Mackie T-

Shirt! By “commercially released,” we mean

“offered for sale,” even if it’s just being sold out

the back door of a local Karaoke joint. No

hand-lettered covers, please and thank you.

Furthermore, if you send us an interesting

story or photograph about your production we

might use it! To get your genuine 100% cotton

Mackie Celebrity T-shirt, send your CD (and

optional story or photo) to:

Mackie Designs

FREE T-SHIRT OFFER

attn: Communications Department

16220 Wood-Red Rd. NE

Woodinville, WA 98072

Mackie, the "Running Man" figure, and VLZ are trademarks or registered trademarks of Mackie Designs Inc. All other brand names

mentioned are trademarks or registered trademarks of their respective holders, and are hereby acknowledged.

Printed in the U.S.A.

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