Electro-Voice Entertainer Series 200M Bedienungsanleitung

Andere Handbücher für Entertainer Series 200M

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Inhaltsverzeichnis

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200M

ENTERTAINER

SERIES

OWNER’S

MANUAL

200M

ENTERTAINER

STEREO

MIXER

OWNER’S

MANUAL

TABLE

OF

CONTENTS

FEATURES

AND

DESCRIPTION.2

SPECIFICATIONS.3

BLOCK

DIAGRAM.*.4

OPERATION.5

INPUT

CHANNEL

CONTROLS.5

OUTPUT

SECTION

CONTROLS.6

MASTER

SECTION

CONTROLS.7

EQUALIZER

CONTROLS.7

METER

SECTION.8

CONNECTOR

PANEL.9

REAR

PANEL

CONTROLS

AND

CONNECTIONS.11

APPLICATIONS.12

STEREO

PA

WITH

S-200

EQUAUZER.12

MONO

PA.13

USING

A

TAPE

RECORDER.15

USING

A

TAPE

PLAYER

OR

TURNTABLE.16

HOOKING

UP

INSTRUMENTS

DIRECTLY.17

EXTERNAL

EFFECTS.17

RE-PATCHING

THE

EQUALIZERS.17

RE-PATCHING

THE

AMPUFIERS.18

MONITORS.18

SERVICE.23

PRIMARY

WIRING

CONFIGURATION.23

IN

CASE

OF

DIFFICULTY.25

REPLACEMENT

PARTS

UST.26

SCHEMATIC

DIAGRAMS.27

WARRANTY.40

WARNING:

TO

REDUCE

THE

RISK

OF

FIRE

OR

ELECTRIC

SHOCK,

DO

NOT

EXPOSE

THIS

EQUIPMENT

TO

RAIN

OR

MOISTURE.

200M

ENTERTAINER

STEREO

MIXER

OWNER'S

MANUAL

FEATURES

Inputs

1

Through

8

•

Transformerless

balanced

mic/line

input

•

Gain

control

•

Clip

indicator

•

Monitor

send

•

Effects

send

•

Three-band

EQ,

with

mid-frequency

sweep

Input

9

•

Auxiliary

input

for

high-impedance

or

line-level

sources

•

Monitor

send

Master

Section

•

Lexicon

16-bit

digital

effects

processor

with

thirty

programs

built-in

•

Two

nine-band

graphic

equalizers

with

Constant

Range

™

for

reduced

interaction

be¬

tween

frequency

bands

•

Two

ten-segment

peak-responding

LED

bargraph

meters

•

40-volt

phantom

power

for

condenser

microphones

•

Mono

output

master

control

•

Patching

access

jacks

for

mixer,

equalizers

and

amplifiers

•

Effects

send

and

return

system

for

external

effects

Power

Amplifier

Section

•

Two

Class-AD

switching

power

amplifiers

•

Compressor

prevents

distortion

from

clipping

•

Power

amplifier

assign

switch

which

changes

between

normal

stereo

operation

and

mono

operation

with

monitors

DESCRIPTION

The

200M

Entertainer

mixer

is

a

stereo

mixer

with

nine

input

channels

and

two

built-in

power

amplifiers.

The

unit

has

a

lightweight

and

durable

chassis

with

a

recessed

front

panel

for

control

knob

protection.

The

mixer’s

lightweight

design

combined

with

its

high-power

amplifiers

make

it

a

step

ahead

of

the

competition.

The

mixer

consists

of

eight

channel

inputs

which

may

be

used

as

either

a

balanced

mic

input

or

a

high-im-

pedanceline

input.

Each

of

these

channels

has

a

gain

control,

clip

LED,

independent

monitor

send,

a

three-

band

equalizer

with

mid-frequency

sweep,

effects

send,

pan

control,

and

slide

fader.

The

mixer

also

contains

one

auxiliary

input

channel

for

high-impedance

or

line-level

sources.

This

chan¬

nel

has

an

monitor

send,

pan

control,

two-band

equalizer,

and

slide

fader.

The

master

section

of

the

mixer

is

made

up

of

two

nine-band

graphic

equalizers,

a

Lexicon

digital

ef¬

fects

processor

and

master

internal

effects

level

controls.

The

Lexicon

processor

has

thirty

user-

selectable

programs

which

include

echo,

reverb,

and

special

effects.

A

power

amplifier

assign

switch

allows

switching

between

normal

stereo

operation

and

mono

opera¬

tion

with

monitors.

The

power

amplifier

assign

switch

assigns

amplifiers

and

equalizers

with

no

patching

required.

Two

Class-AD

switching

power

amplifiers

deliver

300

watts

per

channel

into

4

ohms.

Power

Lock

™

cir¬

cuitry

prevents

amplifier

clipping.

The

amplifiers

have

short

circuit

and

thermal

protection.

Three

Electro-Voice

accessories

complement

the

200M

mixer.

The

200M

is

compatible

with

all

Electro-

Voice

Stage

systems,

however,

because

of

its

light

weight

and

small

size,

the

S-200

is

the

recommended

speaker

for

use

with

the

200M.

The

speaker

system

is

a

two-way

constant-directivity

system

with

a

300-

watt

long-term

power-handling

capacity.

The

system

features

the

EVM®

-12S

Pro-Line

woofer

and

a

high-

output

version

of

the

Super-Dome

™

1.5-inch

tweeter.

The

S-200

equalizer

extends

the

low-frequency

response

limit

of

the

S-200

speakers

by

almost

one

octave,

from

90

to

50

Hz,

while

providing

4

dB

of

increased

efficiency.

A

carrying

case

for

the

mixer

(EPC-200M)

is

also

available.

two

200M

ENTERTAINER

STEREO

MIXER

OWNER’S

MANUAL

SPECIFICATIONS

CONDITIONS

1.

All

noise

measurements

are

made

through

mic

inputs

with:

150

Q

source,

20

Hz

-

20

kHz

noise

bandwidth.

2.

0

dBu

=

0.775

V

rms

across

any

impedance.

POWER

OUTPUT

4

Q

load:

300

W/per

channel

8

Q

load:

200

W/per

channel

FREQUENCY

RESPONSE

Power

Amplifier:

20

Hz

-

20

kHz

±

1

dB

with

a

4

Q

load

Mixer:

Microphone

input

to

any

output,

EQ

flat,

gain

controls

nominal

20

Hz

-

20

kHz

±

1

dB

THD

Power

Amplifier:

<

1

%

at

maximum

rated

power

with

a

4

to

8

Q

load

<0.2

%

at

100

W

with

a

8

Q

load

Mixer:

<0.1

%

at+20

dBu,

20

Hz-20

kHz

(

NOISE

LEVEL

-123

dBu

EIN-equivalent

input

noise,

microphone

input

(150

Q

termination)

-90

dBu

residual

at

MAIN

OUT,

MONITOR

OUT,

SUB

L

,

SUB

R

(all

gain

controls

at

minimum)

-70

dBu

residual

at

MAIN

and

MONITOR;

all

input

gain

controls

at

minimum,

MAIN

and

MONITOR

at

0

dB

INPUT

CHANNEL

EQUALIZATION

±

15

dB

low

boost/cut

centered

at

90

Hz

±

12

dB

mid

boost/cut

sweepable

from

300

Hz

to

5

kHz

±

15

dB

high

boost/cut

centered

at

10

kHz

SUBMASTER

INSERTS

1/4-in.

stereo

phone

jack,

tip

send,

ring

return

MICROPHONE

INPUTS

Type:

low-impedance,

balanced,

pin

2

positive

Maximum

Input

Level:

+14

dBu

(3.9

V

rms)

Input

Impedance

at

1

kHz:

2

kQ

CLIP

INDICATOR

THRESHOLD

2

dB

below

preamp

clipping

LINE

INPUTS

Type:

high-impedance,

balanced,

tip

positive

Maximum

Input

Level:

+30

dBu

(24.5

V)

Input

Impedance

at

1

kHz:

20

kQ

TAPE

INPUTS

Types:

high-impedance,

unbalanced,

tip

positive,

RCA

phono

jack,

1/4-in.

stereo

phone

Input

Impedance:

RCA

phono:

6

kQ

1/4-in.

phone:

20

kQ

GRAPHIC

EQUALIZER

9-band,

Constant

Range12

dB

boost/cut

Center

Frequencies:

50,100,

200,

400,

800,1600,

3150,

6300,

12,500

Hz

MAXIMUM

VOLTAGE

GAIN

(±

3

dB)

79

dB-MIC

IN

to

MAIN

OUT

69

dB

-

LINE

IN

to

MAIN

OUT

79

dB

-

MIC

IN

to

MONITOR

OUT

69

dB

-

LINE

IN

to

MONITOR

OUT

86

dB-MIC

IN

to

EFX

SEND

76

dB

-

UNE

IN

to

EFX

SEND

46

dB

-

TAPE

IN(RCA

phono)

to

MAIN

OUT

36

dB

-

TAPE

IN

(1/4-in.)

to

MAIN

OUT

79

dB-MIC

IN

to

SUB

Lor

R

69

dB-UNE

IN

to

SUBLorR

CROSSTALK

-75

dB

-

Adjacent

inputs:

1

kHz

-75

dB

-

Input

to

output:

1

kHz

-50

dB

-

All

combinations:

20

Hz

-

20

kHz

EFFECTS

PROCESSOR

16-bit

digital,

stereo,

15-kHz

bandwidth,

30

user-selectable

programs

MAXIMUM

POWER

INDICATOR

(FOR

EACH

CHANNEL)

Ughts

when

compression

circuit

is

activated

by

clipping

DIMENSIONS

Height:

7.94

in.

(20.2

cm)

Depth:

18.25

in.

(46.4

cm)

Width:

19.5

in.

(49.5

cm)

WEIGHT

38

lb

(17.3

kg)

POWER

REQUIREMENTS

100/120/220/240

V

ac,

50/60

Hz

(internal

setting)

CASE

Black

polyethylene

with

detachable

line

cord

OPTIONAL

ACCESSORIES

EPC-200M

carrying

case

S-200

equalizer

S-200

speakers

Specifications

subject

to

change

without

notice.

three

Jr'put

I

200M

ENTERTAINER

STEREO

MIXER

f

our

OWNER’S

MANUAL

200M

ENTERTAINER

STEREO

MIXER

OWNER’S

MANUAL

Pictorial

1-

Input

Channel

Diagram

OPERATION

INPUT

CHANNEL

CONTROLS

(refer

to

Input

Channel

Diagram,

Pictorial

1)

Each

input

channel

will

accept

a

sig¬

nal

source

which

may

be

equalized,

have

internal

or

external

effects

added,

sent

to

a

monitor

system

and

sent

to

the

main

system

for

the

audience

to

hear.

The

input

chan¬

nels

have

low-impedance

mic

inputs

(the

3-pin

female

XLR-type

connec¬

tor)

and

high-impedance

mic/line

in¬

puts

(1/4-inch

phone

jack).

The

line

input

will

accept

signals

from

either

an

instrument,

high-impedance

microphone,

tape

deck,

drum

machine,

or

almost

any

other

audio

source.

Always

be

sure

that

the

channel

fader

or

master

faders

are

down

before

plugging

or

unplugging

input

sources.

1.

GAIN

control:

The

GAIN

control

adjusts

the

amplification

of

the

input

stage.

This

is

necessary

to

accom¬

modate

the

wide

variation

in

signal

strength

presented

to

the

mixer

by

a

variety

of

signal

sources.

The

GAIN

control

allows

the

amplification

for

each

input

source

to

be

optimized.

This

results

in

the

best

signal-to-

noise

ratio

and

best

freedom

from

overload

distortion.

2.

EQ

controls:

Equalization

can

be

more

simply

described

as

tone

con¬

trol.

The

200M

tone

controls

are

of

the

bandpass

type;

therefore,

ex¬

tremely

high

and

low

(inaudible)

fre¬

quencies

are

not

affected

by

these

controls.

A.

HIGH

EQ:

10

kHz

Boost/Cut

±

15

dB

This

control

adjusts

the

treble

content

of

the

input

signal.

B.

MID

FREQ:

300

Hz-5

kHz

This

control

sets

the

center

fre¬

quency

of

the

MID

EG

(the

fre¬

quency

of

the

maximum

peak

or

dip).

C.

MID

EQ:

300

Hz-5

kHz

Boost/Cut

±12

dB

This

control

adjusts

the

midrange

content

of

the

input

signal.

D.

LOW

EQ:

90

Hz

Boost/Cut

±15

dB

This

control

adjusts

the

low-frequency

content

of

the

input

signal.

3.

FX

Send

control:

The

FX

Send

control

determines

the

amount

of

input

signal

sent

to

the

effects

bus.

It

is

affected

by

the

channel

tone

controls

and

the

channel

fader.

Since

each

channel

has

its

own

FX

control,

some

channels

can

have

internal

or

external

effects

and

others

none.

Note

that

since

the

internal

and

exter¬

nal

effects

share

a

common

send,

they

will

always

have

the

same

sources.

Therefore,

it

is

not

possible

to

have

internal

effects

on

one

input

source

and

external

effects

on

another

input

source

at

the

same

time.

It

is

possible

to

have

internal

and

external

effects

simultaneously

on

both

input

channels,

how¬

ever.

The

FX

control

may

also

be

used

as

a

mono

send.

This

might

be

useful

for

a

tape

recorder

send,

for

example.

4.

MONITOR

control:

The

MONITOR

control

sets

the

level

of

that

input

signal

in

the

monitor

mix.

It

is

independent

of

all

input

channel

controls

except

the

GAIN

control.

It

is

not

affected

by

the

channel

EQ

controls

or

the

channel

fader.

Thus,

it

is

not

affected

by

changes

in

the

main

mix.

5.

PAN

control:

The

PAN

control

allows

the

channel’s

input

signal

to

be

placed

within

the

stereo

image

by

assigning

more

or

less

of

the

signal

to

the

SUB

L

or

SUB

R

controls.

Turning

the

PAN

control

to

the

left

of

center

moves

the

apparent

source

toward

the

left

speaker,

turning

it

to

the

right

moves

the

source

to

the

right

speaker.

Centering

the

control

makes

the

apparent

source

centered

between

the

speakers.

If

all

inputs

are

panned

center,

the

result

is

mono.

Proper

use

of

the

PAN

control

can

sometimes

help

to

control

acoustic

feedback

in

a

sound

reinforcement

system

by

"pan¬

ning"

a

mic

away

to

the

loudspeaker

on

the

opposite

side

of

the

stage.

6.

Channel

Fader:

This

control

adjusts

the

channel

level

in

the

main

mix.

The

normal

setting

for

this

control

is

around

the

0-dB

mark

on

the

scale.

five

200M

ENTERTAINER

STEREO

MIXER

OWNER’S

MANUAL

7.

CLIP

indicator:

The

channel

CLIP

indicator

monitors

the

entire

input

channel

circuit

for

clipping

or

overload.

If

the

LED

lights,

the

signal

is

bordering

on

distortion.

This

might

be

caused

by

excessive

equalization

on

the

channel

tone

controls,

a

gain

control

setting

that

is

too

high

for

the

input

signal,

or

a

channel

fader

that

is

set

too

high.

Generally,

reduc¬

ing

the

GAIN

control

will

eliminate

clipping.

8.

Channel

9

(tape

input):

The

tape

input

is

a

high-

impedance

line

input.

It

may

be

used

for

a

tape

deck,

cd

player,

keyboard,

drum

machine,

or

other

instru¬

ment.

See

page

8,

Pictorial

4.

OUTPUT

SECTION

CONTROLS

(refer

to

Output

and

Master

Section

Controls,

Pictorial

2)

9.

Effects

Section:

A.

EFX

SEND

Master

control:

The

EFX

SEND

master

control

sets

the

level

of

the

signal

at

the

EFX

SEND

output

jack

going

to

any

type

of

outboard

effects

devices

such

as

a

delay.

It

does

not

affect

the

signal

being

sent

to

the

internal

digital

effects

system.

The

source

for

this

signal

is

the

individual

FX

level

controls

on

input

chan¬

nels

1

through

8.

200M

ENTERTAINER

STEREO

MIXER

OWNER’S

MANUAL

B.

EFX

RETURN

control:

The

EFX

RETURN

level

control

determines

the

level

of

externally

generated

effects

signals

in

the

main

mix.

This

signal

is

mixed

into

the

left

and

right

submaster

outputs.

It

will

mix

into

the

mono

output.

C.

EFX

PAN

control:

The

EFX

PAN

control

adjusts

where

the

externally

generated

effects

are

placed

in

the

stereo

image.

10.

Internal

Effects

section:

A

Lexicon

16-bit

stereo

digital

effects

system

is

built

into

the

200M

mixer.

Thirty

programs

may

be

selected

fordifferent

internal

effects.

The

available

programs

are

described

in

Table

1,

page

22.

A.

IFX

SELECT

switch:

This

switch

is

used

to

select

the

number

of

the

desired

internal

effects

program

(1

through

30).

B.

IFX

LEVEL

control:

This

control

adds

internal

effects

to

the

main

(stereo

and

mono)

outputs

from

any

input

channel

signal

(inputs

1

through

8)

whose

FX

control

is

turned

up.

C.

IFX

BALANCE

control:

This

control

adjusts

the

left-to-right

balance

of

the

digital

effects

sys¬

tem.

11.

POWER

indicator:

This

green

LED

indicates

whether

the

mixer

is

on

or

off.

12.

PHANTOM

POWER

indicator:

This

green

LED

indicates

the

presence

of

40

volt

phantom

power

at

the

microphone

inputs

(XLR

connectors

only).

Phantom

power

is

turned

on

and

off

from

a

switch

on

the

rear

panel.

Phantom

power

allows

the

simul¬

taneous

use

of

dynamic

and

condenser

microphones,

while

eliminating

the

need

for

the

bat¬

teries

sometimes

associated

with

powering

con¬

denser

microphones.

MASTER

SECTION

CONTROLS

(refer

to

Output

and

Master

Section

Controls

Diagram,

Pictorial

1,

page

5)

13.

SUB

L

control:

This

control

adjusts

the

level

of

the

left

stereo

output

channel.

In

mono

mode,

the

control

is

used

as

the

left

submaster.

16.

MONITOR

Output

control

:

This

control

adjusts

the

level

of

the

monitor

output

signal.

The

monitor

output

is

a

mix

of

the

individual

channel

monitor

sends.

17.

IFX

TO

MON

control:

This

control

adds

internal

effects

to

the

monitor

mix.

EQUALIZER

CONTROLS

(refer

to

Equalizer

Sec¬

tion

Diagram,

Pictorial

3)

18.

Dual

8-Band

Graphic

Equalizers:

The

Dual

9-Band

Graphic

Equalizers

in

the

200M

enhance

its

versatility.

While

graphic

equalizers

are

typically

used

for

feedback

reduction,

they

may

also

be

used

as

a

tone

control

system

for

special

tonal

effects

or

perhaps

just

the

overall

shaping

of

the

sound

system’s

response.

The

equalizers

are

Constant

Range

7*

which

provides

optimum

coverage

of

the

intended

frequency

range

at

all

control

settings.

Each

of

the

graphic

equalizers

can

boost

or

cut

any

(or

all)

of

the

9

bands

up

to

12

dB.

14.

SUB

R

control:

This

control

adjusts

the

level

of

the

right

stereo

channel.

In

mono

mode,

it

is

also

used

as

the

right

submaster.

15.

MAIN

Master

control:

The

Main

output

is

a

mix

of

the

left

and

right

submaster

outputs.

The

MAIN

Master

controls

the

level

of

the

mono

output.

The

equalizers

are

connected

to

the

200M’s

mixer

section

output

through

the

POWER

AMP

ASSIGN

switch.

The

POWER

AMP

ASSIGN

switch

deter¬

mines

the

usage

of

the

equalizer

channels,

along

with

the

power

amplifier

channels.

seven

200M

ENTERTAINER

STEREO

MIXER

OWNER’S

MANUAL

METER

SECTION

(refer

to

the

Out¬

put

and

Master

Section

Controls,

Pictorial

2,

page

6)

19.

METER

ASSIGN

switch:

The

METER

ASSIGN

switch

allows

the

left

and

right

bargraph

displays

to

be

as¬

signed

in

either

of

two

ways:

A.

If

the

METER

ASSIGN

switch

is

in

the

In

position,

the

left

bargraph

will

indicate

the

main

output

level,

while

the

right

bargraph

will

indi¬

cate

the

monitor

output

level.

B.

If

the

METER

ASSIGN

switch

is

22

in

the

Out

position,

the

left

bargraph

will

indicate

the

left

(SUB

L)

output

level,

while

the

right

bargraph

will

indicate

the

right

(SUB

R)

output

level.

20.

Left

and

Right

Bargraph

dis¬

plays:

The

meter

section

uses

dual

ten-segment

(peak-responding)

LED

bargraph

displays.

The

displays

are

calibrated

in

dBu.

+

9

dBu

on

the

dis¬

play

corresponds

to

full

power

from

the

internal

amplifiers.

21.

Left

and

Right

MAXIMUM

POWER

indicators:

These

indicators

signal

the

activation

of

the

anti-clip¬

ping

circuit.

The

output

of

each

amplifier

is

monitored

individually

for

clipping

(distortion).

When

clipping

is

detected,

the

amplifier

gain

is

auto¬

matically

reduced

just

enough

to

keep

the

amplifier

output

from

clipping.

If

the

input

signal

should

increase

fur¬

ther,

the

gain

is

reduced

further,

but

just

enough

to

prevent

clipping.

Occasional

flashing

of

the

LEDs

is

nor¬

mal.

Sustained

operation

of

the

LEDs,

while

not

harmful

in

itself,

is

an

indica¬

tion

of

amplifier

overdrive

(operating

the

system

beyond

its

limits);

the

out¬

put

level

should

be

reduced.

With

the

indicators

on

continuously

or

most

of

the

time,

the

200M

will

not

get

sig¬

nificantly

louder,

regardless

of

how

much

travel

is

left

on

any

of

the

volume

8

controls.

One

possible

cure

is

to

simply

turn

the

SUB

L

and

SUB

R

controls

down.

Another

possibility

is

Pictorial

4

-

Channel

9

Controls

MAXIMUM

POWER

LEFT

©30CW

40

RIGHT

|

©30CW

40

INTERNAL

DIGITAL

EFFECTS

PROGRAM

12

v_

'

«

-

15

-15

LOW

EQ

I

\_/

9

PAN

'

-

to—

-

2

0

—

-

3

0

—

-

4

0

—

to

obtain

additional

power

amplifiers

and

speakers

if

more

volume

and/or

coverage

is

needed.

Remember,

the

MAXIMUM

POWER

LEDs

do

not

indicate

amplifier

clipping,

rather,

they

indicate

the

activation

of

the

protection

circuitry.

If

it

weren't

for

the

protection

circuitry,

the

signal

would

have

been

clipped,

causing

distortion.

22.

INTERNAL

DIGITAL

EFFECTS

PROGRAM

display:

This

digital

display

indicates

the

number

of

the

selected

internal

effects

program.

The

available

programs

are

described

in

Table

1,

page

22.

20PM

ENTERTAINER

STEREO

MIXER

OWNER’S

MANUAL

Pictorial

5

-

Connector

Panel

Diagram

OPERATION

CONNECTOR

PANEL

(refer

to

Connector

Panel

Diagram,

Pictorial

5)

1.

B

alanced

High-Impedance/Line

inputs

(BAL

HIGH-Z

LINE

IN):

The

High-Impedance/Line

inputs

(channels

1-8)

accept

a

standard

1/4-inch

phone

plug.

A

3-conductor

or

2-conductor

plug

may

be

used.

With

a

3-conductor

plug,

the

tip

is

+

and

the

ring

is

—.

A

2-conductor

plug

will

unbalance

the

input.

Use

shielded

cable

for

these

connections.

The

inputs

may

be

used

for

any

of

the

following

sources:

a.

high-impedance

microphones

b.

CD

player

c.

keyboards

or

synthesizers

d.

drum

machines

e.

tape

machines

(playback)

f.

turntables

(with

external

RIAA

preamp)

g.

signals

from

another

mixer

h.

any

source

with

an

output

level

from

-40

to

+

26

dBu

or

.01

to

15

volts

2.

B

alanced

Low-Impedance

Microphone

inputs

(BAL

LOW-Z

MIC

IN):

The

Low-Impedance

input

jacks

(channels

1-8)

accept

signals

from

a

balanced,

low-impedance

source,

such

as

a

microphone.

Do

not

connect

or

disconnect

microphones

with

the

volume

(channel

or

master)

controls

turned

up.

Loud

noises

will

result.

Shielded

cable

must

be

used

for

all

microphone

connections.

These

inputs

will

accept

any

of

the

following

sources:

a.

b

alanced,

low-impedance

dynamic

microphones

b.

balanced,

low-impedance

condenser

microphones

c.

phantom

power

compatible

condenser

microphones

d.

balanced,

low-impedance

outputs

from

instru¬

ments

e.

the

balanced,

low-impedance

output

of

a

direct

box

f.

any

balanced,

low-impedance

microphone-level

source

Each

of

these

inputs

has

phantom

power

available

for

powering

certain

condenser

microphones.

Dynamic

microphones

(or

any

of

the

above

sources)

may

be

used

simultaneously

without

damage.

Since

phantom

power

is

a

compatible

system,

one

switch

is

provided

for

all

inputs.

3.

T

APE

inputs:

The

TAPE

inputs

are

all

unbalanced,

high-impedance

jacks.

The

RCA

phono

jacks

will

accept

inputs

with

a

nominal

level

of

-10

dBu

(con¬

sumer

audio

equipment).

The

standard

1/4-inch

phone

jack

will

accept

inputs

with

nominal

levels

of

+

4

dBu

(pro

audio

gear).

The

RCA

and

1/4-inch

jacks

may

be

used

simultaneously;

their

signals

will

be

summed

together.

Use

the

output

level

controls

on

the

individual

input

devices

to

adjust

the

relative

levels

between

the

two

signals.

Only

2-conductor

plugs

may

be

used

with

these

unbalanced

inputs.

These

inputs

can

be

used

for:

a.

CD

or

tape

player

b.

turntables

(with

suitable

RIAA

preamp)

c.

effects

returns

d.

keyboards

e.

another

mixer's

output

signal

f.

output

signal

from

a

movie

projector

or

VCR

g.

drum

machines

h.

any

line-level

source