Akai X-150D User Manual

ERAL INFORMATION 3. CROSS-FIELD HEAD
‘The crow-field head created @ sensation in the tape recorder market by making possible « wide range recording never before heard
fof any conventional tape recorder.
Using
this
cross-field
head,
Model
X-150D
provides
a
surprising
recording
performance
of
W0-23.000cps
at
a
tape
spiced
of
7
80-18,000 cps at 3-34 ips and 30 ty %O00.cps ac I-7g ips
What is superior about crnssfield recording? How docs it difler from typical recording methods as far as construction is concerned ?
On these, explanation is given below in sequences
In the typical recording system, the signal current and the bias current are combined together and applied 10 the recording head
(Refer to Diagram 1
It is well known that the purpose of bias current is to record, at high sensitivity, a signal applied on the tape, with little distortion
and minimizing noise generation.
However,
the
bias
current
providing
suet
an
advantage
also
has
an
undesirable
character.
That
is,
the
wide
magnetic
field
of
the
ins
current
affects
the
recorded
signal,
ing
the
signal,
‘This
phenomenon
is
particularly
notice-
fvble at high frequencies.
In
the
cronsefield
system,
the
signal
current
is
applied
to
the
recording
head
while
the
bias
current
is
applied
to
the
bias
head
These
two
heads
are
located
in
different
positions,
as
determined
inter-relatively,
so
that
the
magnetic
field
of
the
bias
will
not
affect
the signal recorded on the cape, even when sufficient bias is applied. This allows the recorded signal to remain on the tape with
igh fidelity
ling in weakening or even er:
Diagran 1. Ordinary recording system Diags Crosfield recording, system

Akai X-150D Specifications

General

Brand	Akai
Model	X-150D
Category	Tape Deck
Language	English