Kustom Iii User manual

STEAM POWERED RADIO.COM

BASS

AMPLIFIER

STEAM POWERED RADIO.COM

KUSTOM WARRANTY

All

Kustom amplifiers, power units, mixers, and

their

associated components and

parts,

except

as

specified below,

are

guaranteed, by Kustom Electronics, Inc., to the original

purchaser

to be free of defects

in

material

or

workmanship for a

period of five

(5)

years

from

the

date of purchase.

-and-

All

Kustom

speaker

cabinets and their associated components and

parts,

except as specified below,

are

guaranteed,

by

Kustom Electronics, Inc., to

the

original purchaser to be free

of

any defects

in

materials and workmanship for a period of one

(1)

year

from

the

date

of purchase.

-provided -

(1) The original purchaser applies for a Kustom

Warranty

Card for

the

guaranteed

product(s) within

10

days of

the

date

of purchase; and,

(2)

Within

the

applicable period of this guarantee,

the

original purchaser delivers,

at

his own expense, the defective

product(s) to an Authorized Kustom Dealer

or

Service

Center

for repair; or, where

no

such dealer or service

center

is

nearby, obtains

at

his own expense from Kustom Electronics, Inc., an "Authorization Number" to

return

merchandise and ships,

at

his own expense, the defective product(s) to Kustom Electronics Customer Service,

909 W. Cherry, Chanute, Kansas 66720. The repaired product(s) will be

returned

freight prepaid.

Kustom Electronics, Inc., will,

at

its option, repair or replace

the

defective part(s) or product(s).

Excluded from coverage by this

warranty are

exterior

surfaces and finishes, face panels, grill cloth, covers, knobs,

handles,

casters

and appearance items.

Any modification of the Kustom-manufactured product(s) such as

the

installation of

substitute

parts,

rewiring

or

other

changes to the

system

without

written

authorization from Kustom Electronics, Inc., will automatically void this

warranty.

Kustom Electronics, Inc., shall not be liable for any direct, special, incidental

or

consequential damages incurred

by

reason

of

a breach of

the

above provisions, except as expressly provided above.

The provisions of this

warranty

shall be covered by

the

local laws of the

state

where

the

original purchaser shall

purchase products covered hereby, and shall be enforceable only to the

extent,

and

in

the

manner, permitted under such

laws.

EXCEPT AS HEREIN EXPRESSLY PROVIDED, KUSTOM ELECTRONICS, INC., MAKES

NO

WARRA TY,

EXPRESSED

OR

IMPLIED,

OF

MERCHANTA

BI

LITY, FITNESS FOR A PARTICULAR PURPOSE,

OR

OTHERWISE.

STEAM POWERED RADIO.COM

Your

new

Kustom

Amplification

System

has

been designed

with

your

needs

in

mind

.

Through extensive research,

Kustom

amplifiers

have been engineered

and

con-

structed

with

the

finest material

and

components available.

A wide variety

of

highly

technical requirements

and

specifications,

which

each

piece

of

equipment

must

comply

with

,

has

been incorporated

to

give

your

Kustom

amplifier

maximum

performance

and

dependability

.

On the

following

pages are operating instructions

and

technical specifications

to

better

help

you

create

YOUR

sound.

STEAM POWERED RADIO.COM

KUSTOM

Ill BASS

CHANNEL

NO. 1-BASS

CHANNEL

NO. 2-

NORMAL

Inputs

STEAM POWERED RADIO.COM

TONE

CONTROL

OPERATION

CHANNEL

I - BASS

As a general rule, the

amount

of

control

(boost

or

cut),

any one

of

the

tone

controls

has

will

be

greatly

influenced

by

the

type

of

bass

guitar

and

pick

-

up

combinations

used. The electric

bass

guitar

has

a funda-

mental

frequency

range

of

from

approximately

42Hz

(open

low

E)

to

approximately

200Hz

(12th

fret

of

4th

string).

The

dominant

harmonic

overtones

occur

in

the

frequency range

from

about

160Hz

to

700Hz.

The relationship between the fundamental and these harmonics

determine

the

tonal

quality

of

the

amplified

sound.

Tone

controls

allow

the musician

to

control

this relationship.

The

tone

controls

can

only

control

the frequencies

within

their

operating range. As

an

example,

if

the

musician

is

using

an

electric

bass

guitar

with

two

pickups, and

he

is

using

the

top

pickup

(the one closest

to

the

fret

board) and playing

with

his fingers, the

treble

control

will

exhibit

very

little

control

action

.

This

is due

to

the

fundamental

frequencies being the

predominent

components. There are very

few

harmonic

overtones generated when a

bass

is

played in

this

manner, and therefore, there are very few harmonics

with-

in

the

control

range

of

the

treble

control.

On the

other

hand,

if

the musician

is

playing using

the

bottom

pi

ckup

and using a

pick,

the

treble

control

will

exhibit

a great deal

of

control

action

.

This

is

due

to

a larger

quantity

of

harmonic

overtones in relation

to

the

fundamental

frequency.

The

Bass

control

will

always

exhibit

a noticeable degree

of

boost and

cut

with

almost any

type

of

playing style

or

pickup

configuration

.

This

is

due

to

the

simple

fact

that

you

cannot have

harmon

ic over-

tones

without

a

fundamental

and the

bass

control

action

is

centered in the

fundamental

frequency

range.

The

clarity

control

determines the level

of

the lowest

fundamental

frequencies produced

by

the

electric

bass

guitar

. The

word

clarity

was

chosen because

more

low

fundamental

frequencies present cause a deeper

and sometimes

muddy

sound.

By

use

of

the

clarity

control

the

depth

of

sound can

be

adjusted

for

almost

any

type

of

music

or

playing

environment

.

This

control

is

especially useful in adjusting the

amplified

sound

for

different

sizes and shapes

of

rooms

or

clubs.

STEAM POWERED RADIO.COM

CHANNEL

II

--

NORMAL

As previously stated, the

amount

of

control

(boost

or

cut),

any one

of

the

tone

controls

has

is

greatly

influenced

by

the

type

of

guitar

, strings, playing style and

pickup

configuration

. Channel

11

is

designed

to

allow

a

bass

guitarist

a

modified

tone

control

action

and also

to

allow

for

proper

equalization when using a

standard electric guitar. A

brief

explanation

of

this

channel's action when using

an

electric

guitar

follows

:

The electric

guitar

has

a

frequency

range

of

from

approximately

74Hz (open

low

E)

to

1320Hz

(

12th

fret

high E). The

dominant

harmonic

overtones

occur

in

the

frequency

range

from

about

128Hz

to

528

0Hz.

The

relationship between

the

fundamental

and these harmonics determine

the

tonal

quality

of

the

amplified

sound. T

he

tone

control

circuitry

provides the musician

with

the

means

to

control

the

relation-

ships between these frequencies.

The

tone

control

circuits

for

the

electric

guitar

are configured very much

like

those used

on

the

older

tube-

type

amplifier

.

This

arrangement

has

the

advantages

of

unique

boost and

cut

points

and

the

disadvan-

tage

that

if

all

controls

are adjusted

to

minimum,

no

output

signal results.

The

tone

control

circuits

used

for

Channel

11

are

of

the

boost and

cut

type

and

like

those used in

the

bass

channel, can

only

control

the frequencies

within

their

operating range.

It

will

be

noticed, however,

that

when using

an

electric guitar,

control

action

will

be

more

apparent

under

most

operating

conditions

than

for

the electric

bass

. This

is

due

to

the

ability

of

the

guitar

to

play chords.

The

strumming

of

an

electric

guitar

produces

an

extremely

complex

signal

which

in most instances

has

a

fundamental

and at least one

harmonic

overtone in one

of

the tone

control

operating ranges.

STEAM POWERED RADIO.COM

OPERATING

CONTROLS

CHANNEL

I -

BASS

Volume

Adjusts

the

loudness

of

the amplifier.

It

should

be

noted

that,

depending on

the

instrument

used,

maximum

amplifier

output

can

be

obtained at almost any

control

setting. The

control

numbers are provided

for

ease

in readjusting the

amplifier

to

a specific

output

.

Clarity

Controls the level

of

very

low

bass

frequencies.

By

adjustment

of

this

control,

the

relation-

ship

of

the

fundamental frequencies

to

the

hi_gher

harmonies

may

be

controlled.

This

control

is

of

the

boost and

cut

type

.

Bass

Adjusts the level

of

the

"low

end"

or

bass

frequencies in relation

to

the

"high

end"

or

treble

frequencies. This

control

is

of

the boost and

cut

type

to

allow

the musician

maximum

con-

trol

over his sound.

Treble

This

control

adjusts

the

level

of

the

treble frequencies in relation

to

the

bass

frequencies.

This

control

is

also

of

the boost and

cut

type.

Bright

Located on the

treble

control,

the

bright

switch provides

an

additional degree

of

bite

or

boost

to

the

treble frequencies.

STEAM POWERED RADIO.COM

CHANNEL

II --

NORMAL

Volume Operates the

same

as

Channel I volume

control.

Bass

The Channel II

bass

control

operates the

same

as

Channel I, except

that

the

points

at

wh

i

ch

boost and

cut

occur are

modified

to

resemble those

of

older

tube

-

type

amplifiers.

Middle The Channel

11

middle

control

is

of

the

boost and

cut

type

which

allows

control

over the

frequencies located in

the

middle

of

the

electric guitar range. The

control

action

operates

the

same

as

the

older

tube

-

type

amplifier

.

Treble The Channel

11

treble

control

is

of

the boost and

cut

type

. The action

of

this

control

also

resembles

that

of

a tube-

type

amplifier.

Bright Operates

the

same

as

Channel I

Bright

Control.

STEAM POWERED RADIO.COM

TECHNICAL

SPECIFICATIONS

Preamplifier gain measured at

1.0KHz

. Tone

controls

maximum

.

Signal-

to

-noise ratio

Minimum

input

voltage required

for

rated

out

-

put

. Tone controls adjusted

for

flat

r.esponse

at

1.0KHz

.

Volume

adjusted

maximum.

Power

output

measured

into

a 3.0 ohm load

at 1.

0KHz

.

All

tone controls

maximum

with

bright

switch in.

Channel I

Channel

11

Channel I

Channel

11

Channel I

Channel

11

32 db

39

db

Gain

min

. -

81

db

Gain max.- 58

db

Gain

min

. -

81

db

Gain max.-

50

db

50mv RMS

22mv RMS

250

Watts peak (125 Watts RMS) @ .65%

distortion

.

260 Watts peak (130 Watts RMS) @ 1.0%

distortion

.

312 Watts peak (156 Watts RMS) @ 5.0%

distortion

.

336 Watts peak (168 Watts RMS) @ 10%

distortion

.

STEAM POWERED RADIO.COM

Frequency response measured

with

tone con-

trols

adjusted

for

flat

response.

Nominal

input

impedance

Line

output

at rated

power

Absolute

minimum

speaker load impedance

AC accessory receptacle

maximum

load

.±

3.0

db

Channel I

Channel

11

72Hz -20KHz

50.0K

ohms

220K

ohms

0.700V

RMS,

ZL=600

ohms

6.0

ohms

200

Watts

TONE

CONTROL

RANGE

CHANNELi

Clarity

Bass

Treble

CHANNEL II

Bass

Treble

Middle

.±

8.0

db

@ 50.0Hz

.±

12.0

db

@

60.0Hz

.±

15.0

db

@

6.0K

Hz

+ 7.0

db

@ 40.0Hz

+ 9.0

db

@

15.0KHz

+ 6.0

db

@ 350.0Hz

STEAM POWERED RADIO.COM

SPEAKER

WIRING

DIAGRAM

STEAM POWERED RADIO.COM

I

KUSTOM

ELECTRONICS,

INC.

1010

WEST

CHESTNUT

, CHANUTE, KANSAS

66720

STEAM POWERED RADIO.COM

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8

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Kustom III User manual

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