Mackie CR1604 Owner's Manual download pdf (Page 44)

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input, for example, will automatically unbalance

the input and make all the right connections.

Conversely, a

1

⁄

4

" TRS plug inserted into a

1

⁄

4

"

unbalanced input will automatically tie the ring

(low or cold) to ground (earth).

TRS Send/Receive Insert Jacks

Mackie’s single-jack inserts are the three-

conductor, TRS-type

1

⁄

4

" phone. They are

unbalanced, but have both the mixer output

(send) and the mixer input (return) signals in

one connector (See Figure F).

The sleeve is the common ground (earth) for

both signals. The send from the mixer to the

external unit is carried on the tip, and the re-

turn from the unit to the mixer is on the ring.

Using the Send Only on an Insert Jack

If you insert a TS (mono)

1

⁄

4

" plug only

partially (to the first click) into a Mackie

insert jack, the plug will not activate the jack

switch and will not open the insert loop in the

circuit (thereby allowing the channel signal to

continue on its merry way through the mixer).

This allows you to tap out the channel or

bus signal at that point in the circuit without

interrupting normal operation.

If you push the

1

⁄

4

" TS plug in to the second

click, you will open the jack switch and create

a direct out, which does interrupt the signal in

that channel. See Figure E.

NOTE: Do not over-

load or short-circuit the

signal you are tapping

from the mixer. That will

affect the internal signal.

MACKIE STEREO INPUTS AND RETURNS:

Mono, Stereo, Whatever

Stereo line inputs and stereo AUX returns

are a fine example of the Mackie philosophy

(which we just made up) of Maximum Flex-

ibility with Minimum Headache. The inputs

and returns will automatically be mono or ste-

reo, depending upon how you use the jacks.

Here’s how it works:

A mono signal should be patched into the

input or return jack labeled Left (MONO). The

signal will be routed to both the left and right

sides of the return circuit, and will show up in

the center of the stereo pair of buses it’s as-

signed to, or it can be “panned” with the

Balance control.

A stereo signal, having two plugs, should be

patched into the LEFT (MONO) and the

RIGHT input or return jacks. A jack switch in

the RIGHT jack will disable the mono func-

tion, and the signals will show up in stereo.

A mono signal connected to the RIGHT jack

will show up in the right bus only. You probably

will only want to use this sophisticated effect

for special occasions (weddings, bar mitzvahs,

Rush Limbaugh’s birthday party, etc.)

Figure E

Direct out with no signal interruption to master.

Insert only to first “click.”

Channel Insert jack

Channel Insert jack

Channel Insert jack

Direct out with signal interruption to master.

Insert all the way in to the second “click.”

For use as an effects loop.

(TIP = SEND to effect, RING = RETURN from effect.)

MONO PLUG

MONO PLUG

STEREO

PLUG

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