Bose Aviation Headset Owner's guide - Page 14

carton,

contact

the Bose

organization

in

your

country

for

a

new

carton

available

at

a

nominal

charge;

C.

Label

and

ship, freight

prepaid,

to

the

address

provided

by

the

Bose

organi-

zation

in

your country,

and

D.

Place

any

necessary

return

authori-

zation

number

prominently

on

the

outside

of

the

carton.

(Cartons

not

bearing

a

return

authorization

number.

where

required.

will

be

refused.)

Other

conditions

This

warranty

is

fu:ly

transferable

provided

the

current

owner

furnishes the

original

proof

of

purchase

from

an

authorized

Bose

dealer.

THE

PROVISIONS

OF

THIS

WARRANTY

ARE

IN

LIEU OF

ANY

OTHER WARRANTY,

WHETHER

IAPRESS

OR

IMPLIED,

WRITTEN

OR

ORAL,

INCLUDING

ANY

WARRANTY

OF

MERCHANT-

ABILITY

OR

FITNESS

FOR

A

PARTICULAR

PURPOSE.

BOSE'S

MAXIMUM

LIABILITY

SHALL NOT

EXCEED THE

ACTUAL PUR-

CHASE

PRICE

PAID

BY

YOU FOR

THE

PRODUCT.

IN

NO

EVENT

SHALL

BOSE

BE

I

Inw

F

FOR

SPECIAL,

INCIDENTAL

CONS&

OUENFIAL,

OR

INDIRECT

DAMAGES.

This

warranty

does

not oover

a

defect

that

has

resulted

from

improper

or

unreasonable

use

or

maintenance,

accident,

improper

packing, or

unauthorized tampering,

alteration.

Or

modification

as

determined

solely

by

us.

This

warranty

is

void

if

the

label bearing

the serial

number has

been

removed

or

defaced.

Other

Law

Rights

This

warranty

gives

you

specific

legal

rights,

and you

may

also have

other

rights

which

vary

from

state

to

state

or

country

to

country.

Some

places

do

not

allow limitations

on

implied

warranties

or

the

exclusion

or

limitation

of

incidental

or

consequential

damages,

so

the

above

limitations

or

exclusions

may

not

apply

to

you.

Technical

Information

The

specifications

below

describe

a

complete

system consisting of

a

Headset

connected

to

an

Interface.

Sound

pressure

levels

(SPL)

are

relative

to

20

micro

Pascal.

Earphones

Damage

could

occur

to

avionics

equipment

if

it

was

manufactured

for

useonly

with

600

ohm

headsets.

If

in

doubt,

consult the avionics

equipment

manufacturer.

Impedance

400

ohms

(On)

and

150

ohms

(off)at

1

kHz

(comparable

tOCOrrroOnty

used

conventional

headsets).

Earphones

are

parallel

wired.

Audio impedance

less

than 150

ohms

recommended

for

optimum frequency

response.

Frequency Response

100Hz

-

20

kHz,

+/-5

dB

measured

on

flat

plate

coupler

Sensitivity

90

dB

SPL

(on),

80dB

SPL

(off)

measured

at

.

1

mW,

1

kHz,

full

volume

on

flat

plate

coupler

Microphone

Bias

Requited:

8

to

16

volts

DC

through 220

to

220O

ohms

Sensitivity:

Depends

upon

bias and radio

AC

input

impedance.

Typical

output

is

300

mV

at

114

dB

SPL.

To assure

optimal

modulation

of

your

radio,

it

is

recommended

that

you

have

your

avionics technician

adjust its

input to

match

the

output

of

your

Headset's microphone.

12

Bose Aviation Headset Owner's guide - Page 14

Technical, Information

Page 14 highlights