Biamp MR-140 User manual

Brand: Biamp

Model: MR-140

Category: Musical Equipment

Type: User manual

This manual is also suitable for

MR-140 Operating

Biamp MR-140 Operating Guide

Below you will find brief product information for Biamp MR-140 Operating

The MR/140 is a result of multiple, blended sound images reflections from walls, floor, and ceiling. The MR/140 creates this effect by electronic and mechanical devices, bringing forward a new dimension of full, clean, and rich sound in a low-cost stereo reverberation system. The specially designed type-9 Accutronics spring assembly results in an extended frequency response and reverberation quality never before heard in a low-cost spring reverberation unit.

Features

Automatic hard limiting with LED indicator.

Biamp MR-140 Operating Guide

Below you will find brief product information for Biamp MR-140 Operating

Features

Automatic hard limiting with LED indicator.

MR/14A

OPTRATING

GUIDE

BrAMP

SYSTEMS, rNC.

11000

sw ltrh

Beaverton, OR

P. O.

Box

Beave rton

INDTX

Section I

General

description

Introduct i on

Identi

fication

of Cont,roLs

Description

of Controls

Applicat,i

and

0perati on

Secti on

I I

Inputs and

0ut,puts

Speci

cat

i ons

Warrant

l+*5

7-B

General

Description

Reverberation is a result of multip1e,

blended sound

images

caused by reflections

from

walls, floor

and ceiling.

The MR/140

creates this effect by electronic

and mechanical devices,

bringing

forward a new dimension of full, clean

and rich sound

in a

1ow

cost

stereo reverberation sysLem.

The all new Biamp

VIR/14O Channel

Reverberation

System represents the

latest in low noise, high slew

rate technology. A specially designed

type-9 Accutronics spring

assembly results

extended frequency

response

and

reverberation

quality

never before heard in a

low

cost spring reverberation unit.

Features

Automatic

hard

limiting

with LED

indicator.

Low noise

reverb

pick

amp.

Extended

hiqh

frequency response.

Unique EQ

blend

system

for total

control.

Low

noise.

High

slew rate.

Rugged

19't rack

mount

desi

Latest Circuit Designs

The

special design reverb assembly adds new character and

presence

never heard in other spring

reverbs.

High slew rate and low

noise

generates

unadultered rich

reverberant

sound. Couple this technology

with a non-interacting 4 band

Blend

System and

you

can virtually

create

precise

reverb effect for any

instrument.

The MR/140 is com-

patible

with any application of

equipment.

For

interfacing,

the MR/140

employs both balanced XLR and

f;"

phone

jacks

and unbalanced

inputs

and

outputs. The low

noise

makes

unnecessary

to remove the MR/140 when

reverb

not desired.

SECTION

INTRODUCT

ION

Automatic hard limiting

provides

protection

against annoying

Itspring

slapn resulting from overdriving

the spring.

Even

with

percussion

instruments,

the

input level can

be optimized'

for maximum

performance

monitoring the drive

set. light-

emitting diode

(LED)

mounted on the front panel.

BIAMPfS

exclusive

'rEQ/Bfendrr

System

brings a new dimension

precise

equalization

to the reverb

sound. Four

independent, non-

interacting controls

permit

adding the reverberation

effect to

the

dry signal

at any of the four frequency

ranges

provided.

Ruggedly designed for use

recording, portable

sound

rein-

forcement systems,

permanent

installations,

monitor systems,

audio-visual systems,

and broadcast

and

production

application,

the BIAMP NlR/14O

provides

the ultimate

sound

spring rever-

berati on.

The

unique sound

quality

of the

BIAMP MR/140

due

to four

major design

features:

)

The spring system utilizes

a type-9

accutronics assembly

resulting

resonant

nodes

per

hertz.

2) A

built-in

limit.er elect,ronically

limits the rise

time of

the signal,

which

eliminates

the

rrspring

soundrr of spring

reverberation

units.

3) 4-band EQ Btend System which

permits

adding

the

rrwet

soundf'

at the desired frequencies.

This rdsults

in added

flex-

ibility available

no other spring reverb unit.

4) High

performance

electronics

for

exceptionally

low distor-

tion

and noise. The straight through electronics

are so

good

that they

will

have

effect

your

sound

quality

even

the

most demanding studio

applieation.

IDENT

CAT

I ON OF CONT

ROL

Input

Level

Control

Bal

ance

Cont,

(control

1?6

reverberat

)

Input

Level

Indi

cator

(

ori

set

)

Uni

que

I+

Cont

ro1

Band

for

Equal

zati

reverb

signal

0utput l-eveL

Cont

r o1

DESCRIPTION

OF CONTROLS

Input Level

Controls the amount,

input

drive

the PIR/140.

If used

line,

this

control should

about 5O96 of rotation

for maximum

signal

to noise.

LED

(orive

Set

Level)

Input flashing should

be adjusted such

that this

LED is flashing,

not

fully

on.

Four Band

EQ Blend

These are not

cut and boost controls.

Each

knob

sets

the volume level of a

band

pass

network,

sent to the tone

blend mixer.

Therefore, eaeh

EQ band

permits

adding the wet

sound at the desired

frequencies.

Frequency

centers

are 13OHz, 500H2,

1.8K,

& 6K.

Bafance

Setes ratio

of non-reverb

signal to

reverb signal.

Mainly used when

unit

placed

"in

line'r,

where no

effects

channel

used.

0utput Level

Adjust

for proper

output

level to match

system

use.

If set too hot,

this

will effect signal

to noise.

MR/14A

APPLICATION

AND

OPERATION

The MR/140

is a

"line

levef"

device

and

can be hooked-up

in two basie

ways.

In-Line Operation

Placing the

unit after any mixer

will

add the reverb

effect to

the

in-line

signal

patch.

When using the l"1R/14A

"in-line",

utilize

the balance

control to blend

the

wet and dry signals.

SPEAKER

EQUALIZER

POWER

AMP

MIXER

/ t40

Return

Mixer

0peration

Illustrating

the

use

the

l,lR/

14O for

the

wet

and returning the

processed

wet signal

back

mixed

with

the

dry

signal

the console.

signal

(

reverberation

onl

)

to the

mixing

console

to be

MR/t40

SPEAKER

MIX

EQUALIZER

POWER

AMP

effecis

The

illustration above

represents

connecting

the echo send

jack

of the mixing

console to the l"lR/140

input and

the

output

of the l4R/14O to

the echo return

jack

or an

input channel.

If this method is

used, the

balance

control

would

turned

clock-wise to full

reverb

or wet

signal.

chonnel

polch

MR/ r

SPEAKER

POWER

AMP

EQUALIZER

MIXER

Inserting

the

input

mixing

console

channel

and

output at

will

add the

the

channel

patch

reverb

t,o

onl

the

point

of the

input

channel

voice

or instrument

0n that

Hook

MIXING

\^/ET

& DRY WITHIN

THI

MR/14A

SINGLE OIJTPUT

METHOD

Connect

shielded cable from mixer

recorder

to the

input

the l,1R/140,

(standard

phone

plugs

use unbalanced

input).

Connect

shielded cable from the

output of the

MR/140 to

power

amplifier or recorder input.

Set t.he output level- of the MR/140 to

5096 of its rotation.

As the output level control is turned

in a clockwise ro-

tation,

the siqnal coming out of the

MR/140 will become

stronqer,

up to

+1BdB. This

f,eature

handy for

com-

pensating

for differences in

equipment.

Set

input

drive

control, balance control

and

equalizers half-

way

(lines

knobs

verticat

position).

Send

signal t.hrough MR/140.

Monitor or listen

to reverberated siqnal.

Adjust

drive

control

so that the drive set

light flashes. If

control is

set too low, the

green

light will

not

flash.

control is

set too high, the

green

light will

remain lighted

and

will not flash. When

liqht

is flashing,

your

reverb sound

quality

and noise characteristics are automatically

set for

maximum

performance.

Adjust

balance

control-

(amount

reverberalion).

Turning

the

balance control all

the way up to the left will allow only

non-reverberated

siqnals

pass

through

the MR/140. When

the

bal-ance control is in

this

position,

the

reverb

circuit

will

inactive,

other

than being able to set levels with output

and

input

level control-s.

0peration

0peration,

(

continued

)

It is

not necessary to switch

out or disconnect

the

I4R/14O

when reverb is not required

because

of the

extraordinary low noi.se, distortion

and

high slew

rate

this product.

As the balance control is turned from far

left

(Dry

10), toward 0,

reverberation

will be added to the

signal

passing

through the'unit.

Turning the

balance

control fully to the

right

(

to reverb

10),

will allow

only the reverberated signal at the

output of the unit.

While

the

balance control is

in this

position,

turn the

equilizers

one at a time

their

maxi-mum

positions.

The

four

equalizer control-s only

effeet

the

reverber-

ated

portion

the

signal, so that full control of

the sound

of the reverberated effeet

can

be achieved.

10.

Now that

you

have fully experimented

with the equalizer

control.s,

move the balance control

to blend the reverb

and

dry signal to

your

best

preference.

USING

THT I,IR/14A

FOR t/\|IT

SIGNAL ONLY

The wet signal

only is

the output signal

from

an echo

return or line

blend

control

fuIl

the

same

as the

wet

the

YIR/ 14A is

sent

channel.

For

this

wet.

and

dry

method

except

back

into t,he

mixer

application

turn

the

SECTION II

HOOK

-UP

STIREO

PHONE TO

BALANCTD I. I NE

GRND,

HOT

\_.

TRANSFORMERLESS

BALANCED

INPUTS

Transformerless

balanced input circuits employed in the

BIAMP

l'IR/140 offer

many advant,ages over transformer coupled

lines.

Higher Slew Rate

J+

Less

hum

(

Itto

Transformer

Mag-

netic

Hum Pick-up

)

(

Without

saturation

Lower Distortion

Extended

Frequency

Response

Better

Headroom

transformers

)

robl

ems

Unity

gain

and

the

correct

phasing

balanced

inputs are

maint,ained

circuit.

for

both balanced

and un-

the

l"1R/

1t+O

trans f ormerl

ess

Interconnecting

transformerl.ess

balanced lines

is made

easy

by simply

plugging

them together.

Impedence matching

is no

Ionger

problem

with

transformerless

balanced

inputs.

BIAMP'S

MR/140

has been designed

with

the ability of

an 0p-

Amp to

amplify

a different.ial

input

voltage while

rejecting

any

common

mode voltages.

The

differential

voltage is

applied

to both

the inverting and

non-i.nverting

inputs

of the

0p-

Arp, then

amplified

and coupled

to the next stage.

This

aI-

lows

the stage

to reject any common

mode voltages

present

the

input of

the stage.

Common mode

voLtages

would include

radio

frequency

interferenee and hum,

usually

picked up by

patch

cords

interfacing

other

audio components

of the system.

2ComrL

INTERFACING

TRANSFORMERLESS OUTPUT TO

TRANSFORMER

BALANCED LINES

The output

of the BIAMP

l,lR/14O

can drive

any

line transformer

600 ohms or

up. Beeause of the high

output

capability of

the MR/140,

(+?6.5

dBM

600 ohms balanced),

most line

transformers will saturate

before the

output

will

clip.

Therefore, note t,he capability of

your

transformers

for

setting

your

maximum

line levels.

permissable

drive

than one transformer as long

as the impedence

load does

not

below 600 ohms.

TACl(

CNBLE

TRANs.

:18Oo

AnP

SPECIFICATIONS:

Total

Harmonic Distortion

Relow.019(

drysignal

SIew Rate

13 vo-lts

per

mi cro

second dry

gnal

Siqnal

Noise Ratio

Unity

tlain

dB from 0 dB

(zn-1

00KHz

)

from 0

with blend

control ar maximum reverb,

all"

controls

set

at 50,6

Input Impedence

minimum

0utput

lrnpedence Unbalanced

ohms

Balanced

2Ol

ohrns

l,4aximum

0utput Level

+26d8

Decay Time

seconds

Di mensi ons

17t" lJ x 19" lnl x

9l'rtt

LIMITED

WARRANTY

BIAMP SYSTEMS,

INC.

warrants to the original

consumer

purchaser

each

BIAMP

product

that the

unit

free from defects

in materials

and

workmanship.

This

express

warranty

commences

the date

purchase

from an authorized

BIAMP

dealer and

extends for one

year.

Completion

and

return

of the

warranty

registration

card

enclosed

with

each unit within ten days of the date of

purehase

a condition

precedent

to coverage and

performance

under this express

warranty.

EXCLUSIONS

AND

LIMITATIONS: This

warranty

will be V0IDED if

the serial

number

has been

removed

defaced, or if

the

unit has been subjected to abuse,

alterations, attempted

repair by any

person

not authorized by warrantor to

make

repairs,

accident, or instrallation

contrary

to the warrantorrs instructions.

Cosmetic

blemishes, such as

handles, feet, and knobs are not warranted. A11

implied

warranties,

ineluding the wamanty of MERCHANTABLILITY are limited

the

duration of this

express

warranty,

and, if the registration card in not

promptly

returned,

the implied warranties

are limited to the duration of the

express

wamanty

if it

had

been

effective.

event

will BIAMP SYSTEMS, INC. be

responsible

for incidental or consequential

damages, except for injury

to the

person.

HOW T0

OBTAIN REMEDY: Carefull

pack your

BIAMP

product

and return it

one

the

BIAMP

Authorized Service Centers listed below, or

write the BIAMP

Customer

Service Department at the

address

below

for

instructions

how

return

your

unit to

the factory. Pack a letter

with

the unit explaining the

nature

of,

the

problem

and

giving

your

name and address.

You are responsible

for

freight and insurance

charges to

the Authorized Service

Center

or the faetory.

WHAT BIAMP

WILL D0: BIAMP will

repair or,

its option,

replace

each unit

covered

by this warranty, Units

sent

the

factory will be

returned to

the owner

freight

collect.

Units brought

to Authorized Service

Centers will

held for

piekup

the

owner

for a

period

time

established by the individual

Authorized

Service Center,

or, at

the

ownerrs

option,

returned to the owner

freight collect.

This

warranty

gives

you

specifie

legal

rights, and

you

may

also

have other

rights

which

vary

from state to state.

For

instance,

some states

do not

allow

limitations

how long

implied

warranty

1asts, or

the exclusion or

limitation

incidental

consequential

damages, so

the

above

limitations or

excLusions

may

not

apply

you.

BIAMP

CUSTOMER

SERVICE

DEPART}4ENT

BIAMP

SYSTEMS,

INC.

l]000

rlth

Beaverton,

97005

Box

7 28

Beaverton,

Biamp MR-140 User manual

Brand: Biamp

Model: MR-140

Category: Musical Equipment

Type: User manual

This manual is also suitable for

MR-140 Operating

Biamp MR-140 Operating Guide

Below you will find brief product information for Biamp MR-140 Operating

Features

Automatic hard limiting with LED indicator.

Download PDF

report

Biamp MR-140 User manual

This manual is also suitable for

Biamp MR-140 User manual

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