Mackie PPM608 Bedienungsanleitung PDF herunterladen (Seite 13)

Owner’s Manual

12. INSERT (CH. 1 to 6)

These unbalanced 1/4" jacks on channels 1 to 6 are

for connecting serial effects processors such as

compressors, equalizers, de-essers, or ﬁlters. The insert

point is after the gain switch [28] and compressor

circuits (on channels 1 – 4), but before the channel’s

EQ and level [27] controls. The channel signal can go

out of the insert jack to an external device, be processed

(or whatever) and come back in on the same insert

jack. To do this requires a special insert cable that must

be wired thusly:

Tip = send (output to effects device)

Ring = return (input from effects device)

Sleeve = common ground

Insert jacks can be used as channel direct outputs;

post-gain, and pre-EQ. See the connector section on

page 26 (Figure F) showing three ways to use insert

connections.

13. TAPE OUTPUTS

These stereo unbalanced RCA outputs allow you

to record the main stereo mix onto a tape deck, hard

disk recorder, automatic CD burner, or a computer, for

example. This allows you to make a recording for

posterity/archive/legal purposes whenever the band

gets back together again.

The tape output is the stereo main mix, not affected

by the main level [34], or the main graphic EQ [32].

14. BREAK SWITCH and LED

This important “take-a-break” switch quickly mutes

all the microphones and the mono channel line-level

inputs when the band is between sets. This will prevent

protestors or rogue karaoke singers from storming the

stage at the interval. The monitor 1 and FX/monitor 2

outputs, and the drive signal to the internal effects are

also muted. The LED will come on, as a reminder that

the break switch is engaged. Check this LED ﬁrst, if you

are having trouble with no sound in your system.

You can still play the stereo channel line inputs

[10] and RCA inputs [11] in the main stereo mix. For

example, you could play a soothing CD to restore order

before the police arrive.

Never plug single-ended (unbalanced)

micro phones, or ribbon mics into the mic

input jacks if phantom power is on.

Do not plug instrument outputs into the mic

XLR input jacks with phantom power on,

unless you know for certain it is safe to do so.

8. MONO LINE INPUTS (CH. 1 to 4)

These 1/4" jacks share circuitry (but not phantom

power) with the mic preamps, and can be driven by

balanced or unbalanced sources.

To connect balanced lines to these inputs, use a 1⁄4"

Tip-Ring-Sleeve (TRS) plug.

To connect unbalanced lines to these inputs, use a

1⁄4" mono (TS) phone plug or instrument cable.

The mono line inputs may employ high or low gain

based upon the setting of the switch [28]. Please

review the gain switch settings on page 18 for more

information.

9. LINE/INSTRUMENT INPUTS (CH. 5 and 6)

The line-level inputs for channels 5 and 6 can also

accept instrument-level signals if the hi-z switches

[30] are pressed in. This allows you to connect guitars

directly to channels 5 and 6, without the need for a DI

box. The input impedance is optimized for direct

connection, and high-frequency ﬁdelity is assured.

The line/instrument inputs may employ high or low

gain based upon the setting of the switch [28]. Please

review the gain switch settings on page 18 for more

information.

10. STEREO LINE INPUTS (CH. 7 and 8)

Channel 7 and 8 have stereo line inputs. If you

just have a mono source, plug it into the left input of

channel 7 or 8 (labeled left/mono), and the signal will

appear (as if by magic) equally on the left and right of

the main mix.

The stereo line inputs may employ high or low gain

based upon the setting of the switch [28]. Please

review the gain switch settings on page 18 for more

information.

11. RCA INPUTS (CH. 7 and 8)

Channel 7 and 8 also have RCA line inputs, suitable

for connecting the line-level, unbalanced output from

CD players, tape decks, iPod docks etc. They are not

suitable for direct connection of phono-level outputs

from turntables, as a phono preamp is required.

“tip”

This plug connects to one of the

mixer’s Channel Insert jacks.

“ring”

tip

ring

sleeve

SEND to processor

RETURN from processor

(TRS plug)

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 31 32

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