Operation Manual

ManualsBrandsBluetech ManualsAmplifierMA series

8

9

FRONT

&

REAR

CONNECTIONS

(MA900-MA1200)

14. L/R

CHANNELOUTPUT

CONNECTORS

CONNECTIONS

section

on

page

15 of

this

manual.

15.

BALANCED

INPUT

CONNECTORS (XLR)

The XLR

connector

is

compatible

with

balanced inputs. Since

the

XLR

connector

is

internally

wired

in

parallel,

you can

parallel

this

unit with another

amplifier

by

using

the XLR to

output

the

signal

to

the

input connectors

of the

other amplifier. Balanced

than

600

ohms

is

needed

to

avoid

signal

loss.

For

short

cable

runs

an

unbalanced signal input should

be

suitable.

For

stereo

(two-channel)

operation,

use the

inputs

for

both CH-1

and

CH-2;

for

parallel

or

bridged mono operation,

use

only CH-1

input.

(See

MODE SELECTOR SWITCH

below

for

more explanation.)

The

MA

Series

amplifiers

offer

3

modes

of

operation:

PARALLEL,

STEREO

&

BRIDGED.

Slide

the

switch

to one

ofthe three

positions

for you

application.

.

PARALLEL (MONO) INPUT

-

This mode allows both channels

to

operate

in

parallel with

the

same

signal

and

without

requiring

a

Y-cord

. In

this mode

the

inputs

for

both

channels

are

one

of the

channels.

This still allows independent level control

of

each channel.

It

also

enables

easy "daisy-chaining"

with

other

(Note:

Do not

selectthis

"Parallel"

mode when feeding

the

amplifier

with

2

separate

signals.)

(Note:

Do

not

use

both unbalanced

and

balanced cables

in the

daisy-chaining, resulting

in

hum.)

.STEREO

INPUT -This

is the

most common mode generally

used,

and

allows independent control

of 2

separate signals

such

as

stereo

playback,

mam

and

monitor live mixes,

and bi-

amp

operation (highs

in one

channel

and

lows

in the

other).

.BRIDGED

MONO-

This

mode

combines

the

power

of

both

produces

4

times

the

peak

power

and 3

times

the

sustained

separately

in

stereo

or

parallel mode.

{CAUTION:

In

this mode

the

amplifier

can

deiiver high power

wiring

can

handle

this

output.

Note that

for

prolonged

overdriven

outputs into

a

4 ohm

speaker

the

mains fuse

may

blow,

so

care must

be

taken

not to

overload

the

amplifier

in

such

operation.)

Connect

the

input

signal

to

CH-1

input

for

bridged mono

operation.

17.

VENTILATION

HOLES

proper

internal

operaling temperature.

Page

14

Reference

Manual