Yamaha K-2000, K-1000 Datasheet

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NEW TECHNOLOGY

LINEAR EM TRANSDUCTION

The

most basic function

to record an electronic music

rately as

tape. signal

"imprinted"

tromagnetic

current

"bias

possible

process

This

into a magnetic

on the tape is known as

conventional cassette decks,

transduction.

delivered to the record head via

trap" - a filter

capacitors-and directly mixed with

signal from an LC oscillator at the input to the record head. All

this inductive and

affecting the

"non-linear"

signal head current, and therefore

torted magnetic flux

head. This

creates audible intermodulation

distortion-even in

cassette decks.

The new Yamaha Linear

Magnetic Transduction) significant breakthrough in

function output cation of This has

providing

from

the record head through

linear

current to the head windings.

been accomplished

the bias hap as well as isolating lator's inductive/capacitive

path.

signal

Simply

system means that a is recorded

pure,

The an

exceptionally high

on the tape

undistorted music reproduction.

K-2000

goes

200,000 Hz to absolutely

sibility of

Llnear Electromagnetlc

intermodulation

Recording

ldeal

Linear Curenl

Conventional System

Blas OSC.

(t=

1m kHz)

Linear EMT

System

+Lingar

of a cassette deck is

onto a length

of converting an electronic

signal as accu-

magnetic

signal which can

"elec-

the record

circuit using coils and

the bias

(inductive/capacitive)

capacitive circuitry directly

path

means distorted

dis-

from

output

the

finest

conventional

(Electro-

EMT

the record

system offers the first

this basic but vital

linear magnetic flux

appli-

eliminating

the bias oscil-

from

by using

addition,

pos-

stated,

pure,

for

one step

bias

Transductlon

Flux

+ Linear Rmordlng

circuitry the Linear EMT undistorted signal

correspondingly

further

frequency

minimize the

effects.

bias

the

the K-2000 FET-input

incorporates a

direct-coupled

coupled to the record head, linearity and incorporates

amp, also directly

reproduction

a differential FET-input

coupled to the record

head, for similarly high

precision.

and

2.MOTOR

DIRECT

TRANSPORT

A virtually flawless

essential element in

edented Transduction and K- 1000 The

designed for this application. The

performance

capstan is directly driven

servo motor that has

ground

to micron tolerances for ideal

stability-stability that is

impressive 0.02%

independent the

supply and take-up reels

irregulatities

the stability

This

type of super-precision

carried on

throughout

exceptionally smooth,

TOP.QUALITY THREE.HEAD

Another feature that fully EM Transduction ment

K-2000 and

heads

ideal overallreproduction

heads are a dual-lamination

the K-2000 heads are three-laminations for reproduction

have approximately

Comparison Linear EMT and Conventional Recording

K 2000

-4

Conventional Recording (Metal

-Q Oo

three top-performance

formed

are

magnetic

Systems Conventional Recording

(Mera

rape)

4'o'

a \.

3.o t'

"or

r0,.

0510

Tape)

ro'

(s-

!-0.

5. I

hansport

supporting the

of the

system.

Naturally,

incorporate

wow and flutter figure. An

high-quality DC

at the reels

of the tape

the hansport,

stable operation.

HEADS IN A FULL

SYSTEM

system

K- 1000 record

purity.

IM Distortion

;

high-purity

characteristics.

performance

constructed with

even

Further,

half

(kHz)

Frequmcy

System

'; 'r

Frequency

ftHz)

dual differential

record amp, directly

The K-

greater

1000

for even

purity.

record

reproduction

quality

DRIVE

is an

system

unprec-

Linear

the K-2000

such

transport.

by a brushless

been specifically

motor

shaft

attested to

motor

possibly

cannot

passing

powers

rotational

affect

the heads.

engineering is

ensuring

supports the Linear

full

comple-

heads. The

playback

and

Sendust for

For

enhanced

theK-1000

design, while

greater

music

the head coils

number

the

in Comparison of Head

of wind-

Distortion in Linear

2000

d-a-

-r'

ro'

Eo'

tqn

Conventional

20-

Recording

-9

'o;

FOR

ings used

heads, and therefore

approximately

minimizes sient response

general,

magnetic

performance

Linear

the

realized-for a

reproduction reality.

dbx AND REDUCTION

Although of even

available,

the world dynamic range

from

l0?0&

Freqwncy

.w!6!,\#\..+

'*.8!*\._+

@i{.!/!^J+\.,i

,ircoab

Frequmcy

the

professional

which

Current

EMT and

Systems

vvsre'|rrr

(kHz)

System

Harrcnic

3rd Disto.tion

(kHz)

UNMAICHED

K-2000

Transport Mechanism

.. a\

in conventional

half the usual impedance. This

inductive

the unquestionably

characteristics

still a relatively rare feature dbx noise reduction

to reduce

effects that can limit tran-

and cause increased

that

Transduction

full potential

the

system

these heads

permits

new experience in

DOLBY B NOISE

most

expensive cassette decks

is widely

recording

on the

phonograph

dbx works

studios throughout

noise

and

critical master tapes

records

by compressing

the muSiC signal

ii?'ji:lj:f*|!i.?ili}[

brought well within inherent

levels. Then, when

played panded

range-with

Playback Nolse Level

saturation and

back, the

to its

original

all

crosstalk.

superior

achieve

cassette

maximize

are made.

before

the tape's

noise

the

tape is

signal is ex-

dynamic

peak

music

used

many

the

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