Quadraflex Reference 650FET R - Overload Indicator; Power Meters

less
prominent.
lt
also
helps
adjust to
deficiencies in
your
loudspeakers
or
listening
environment.
Further flexibility
is
provided
by the Turnover
buttons. These
alter the frequencies
which
the
bass and
treble
controls
affect.
The
outer
position
of each
selects
control
over freouencies
closer to the
midrange where
your
ears
are more
sensitive;
making
the effects
of the
bass
and treble
controls more
noticeable.
The
inner
position
selects more
extreme
freouencies
where
your
ears are less
sensitive
and the
effect is more
subtle.
The Loudness
button
activates
a circuit that
slightly
boosts
extreme
bass
and treble frequencies.
Because
your
ears
are
less
sensitive to these
extremes
at
low volumes,
this
circuit
compensates
so
that
you
hear
all the music. Avoid
excessive
bass control
boost when
the Loudness
button is
oushed.
The
Hi Filter reduces
the
high frequency
content
of the sound.
It will
reduce
"hiss"
in
tapes
and broadcasts.
Use only
as
needed.
The
Balance
control
adjusts relative
volurhe
between
the Right
and
Left channels.
Use
it if
you
sit closer to
one speaker
than
the
other so that
the sound
source is
"centered't.
H
ead
phones
This is
the output
for stereo headphones.
Plug
in
your
headphones
for
private
listening;
you
can elect to have
speakers
on
also
if
you
wish. However,
unplug headphones
when
you
aren't using them; high
power
surges could
damage
them.
Overload Indicator
The Reference:650FETR
has
a small red
LED located
next
lo
the
power
button. lt
lights
to
indicate
a short-circuit
or overload
condition
and the sound
shuts
off. This
protects
critical circuit
components
from
damage. lf
the LED lights,
turn
off the
power
and
check all
your
speaker
connections.
Normal
operation
may
be resumed
by waiting
15 seconds
before.turning
power
on again.
Power
Meters
The Reference:650FETR
has
two
unique
9-position LED
power
indicators.
They
enable
you
to relate
the
power
function
of the
amplifier
sections
lo
your
desired listening
level.
The last
section
of these indicators
marked
Clipping
will flash
when
the amplifier
approaches its maximum
undistorted
capacity. lf the last
LED's
stay lit
you
are operating
at or
beyond the timits
of the 650FETR.
This
could cause
sustained
speaker
damage
from
overload.