Alpine 35278 - Amplifier Features Overview

4/3/2-CHANNEL
OPERATION
The 3527S can be used as:
a.
4-channel
amplifier,
producing
25W
per
channel
into
4
Q.
b.
3-channel
amplifier,
producing
70W
(4
Q)
into
channels
1
&
2,
and
140W
(4
Q)
into
the
third
channel.
c.
2-channel
amplifier,
producing
140W
per
channel
into
4
Q.
MULTIMODE
CAPABILITY
The
3527S
can
power
2
pairs
of
stereo
tweeter/midrange
satellites
and
1
or
2
bridged
subwoofers
simultaneously.
ACTIVE
DIVIDING
NETWORK
With
two
independent,
built-in
crossover
networks,
each
pair
of
the
3527S,
channels
will
operate
as
a
low-pass
(subwoofer),
high-pass
(tweeter/midrange
satellite)
or
full-range
amplifier.
The
crossover
is
fixed
at
80
Hz
(18
dB
per
octave).
ACOUSTIC
COMPENSATION
CIRCUITRY
A
selectable
(Off
or
On)
equalization
curve
can
be
added
to
the
amplifier's
output
signal,
compensating
for
the
inherent
non-linearities
of
the
automobile
interior.
It
extends
low
bass
response
and
eliminates
mid-bass
boominess,
giving
the
low
frequency
response
of
the
audio
system
tightness
and
accuracy.
DUO-8
FEEDBACK
CIRCUITRY
Alpine's
proprietary
Duo-Beta
is
a
technologically
advanced
form
of
feedback
circuitry.
Duo-Beta
supplies
low
negative
feedback
throughout
the
audio
fre-
quency
bandwidth
and
very
high
negative
feedback
at
DC.
This
stabilizes
the
amplifier,
removes
DC
offset,
and
offers
excellent
total
harmonic
distortion
(T.H.D.)
characteristics.
It
also
provides
low
transient
intermodulation
distortion
(T.I.M.),
excellent
slew
rate,
Stability,
and
musicality.
,
NO CURRENT LIMITING
Absence
of
current
limiters
in
the
audio
section
ensures
low
T.I.M.,
excellent
transient
response,
and
superb
sonic
quality.
LINE
LEVEL
AND
SPEAKER
LEVEL
INPUT
CAPABILITY
INPUT
MODE
SELECTOR
(MONO/ST/L+R)
This
switch
allows
the
user
to
specify
the
input
signal
entering
the
amplifier.
Among
other
benefits,
it
eliminates
the
need
for
RCA-type
Y-adaptors
when
bridging
the
amplifier.
INPUT
CHANNEL
SELECTOR
This
switch
allows
the
user
to
specify
the
input
signal
entering
channels
3
and
4
of
the
amplifier.