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SPECIF
ICATION
S
Type:
Gain:
Input Sens
iti
v
it
y:
Power
Output:
Frequency
Response:
Input Impedan
ce:
Source Impedance:
Load
Impedance:
Load
Vo
ltage:
Output
Impedanc
e:
Noise
Leve
l:
Operating
Temperat ure
:
Controls:
Power
Supply:
OR
Dimensions:
We
ight:
Accessories
:
Power
amp
I
ifier
67
dB
0.8
vo
lt
for rated
output
200
wat ts
at
less than
1
.0
%
THD,
50
-
l
2,000
Hz
±
l dB,
20
-
20
,
000
Hz
15
,000
ohms
150and
600ohms(withA
LTE
C
15095
Line Transformer)
6.
25/
8 and
25/
32
ohms
35 and
70 vo
l
ts
Less
than
25
%
of nomina
I
load imped-
ance
Output noise
85
dB
be low ra ted out-
p
ut
Up
to
55° ce
nti
grade (13
1
° Fahren
-
heit)
Vo
lume
Contro
l,
continuous ly var
i-
a
ble
composit
io
n
Power Sw
it
ch
Hig h-P
ass
Filte
r Sw itch
l
20
/
240V ac,
SO
/
60
Hz
25
watts
at zero s igna
l
leve
l
260
wa
tt
s
at 70
watts
output leve
l
420
watts
at
200
wa
tt
s
output
level
24/
28V
de (Battery (-) Ground)
0.2
amps
at zero
s
igna
l
leve
l
8
amps
at 70
watts
output level
14
amps
at 200
watts
output
leve
l
10-1
/
2"
H
x
19
"
W
x
8-1
/
4" D
41 pound
s
ALTEC
15095
Line
Transformer
ALTEC
15335
Bridging and
Match ing
Transformer
ALTEC.
1590B
POWER AMPLIFIER
OPERATING
INSTRUCTIONS
Spe
cial
Features:
l.
Automatic
transfer
from ac ta de source
in event
of ac power failure.
Trickle
charge to main ta in battery pro
v
ided
when
ac
operation
is used.
DESCRIPTION
2.
An
active
dissipation-sensing
circuit
providing
protection
to the output tran-
sistors.
Should
a
ma
If
unction
occur,
or
the load
represent
a severe
downward
mismatch in
the presence
of high le vel
program
material,
the sensing
circui ts
pre vents
the
output
transistors
from
operating
in a
mode which would
cause
damage
or
degradation.
As
the
action
of the
circuit
is immediate
and effective,
on
ly
that port
io
n of the program material
which
would damage
the
transistors
is
limi
ted.
The
amplifier
recovers
its
normal
function
as soon as the output
fault is remo ved.
3.
High-pass
filter
for use
in speech
sys-
tems.
Approximate
cutoff
frequency,
500
Hz.
Chassis mounted
continuo
usl
y
variable
composition
gain control.
4
.
Safety
-
Under
wr
it
e
rs' Laboratories
List
ed
The ALTEC 1590B Power
Amp
lifier
is an improved
version
of
A
LTEC's
1590A
Power Amplifier,
designed
for
applications
where uninterrupted
operation
is required.
Solid-state,
100%
silicon,
the
amplifier
provides 200
wa
tts of power at less than
1.0
%
total harmonic distortion
from
50
to
12,000
Hz.
SpcciJi
cal'ions
<ind
rom})onc11ls
s11f,j1·d
lo cha
·
1 1,t1c 11
1
it
h
oul
notic
e
.
Ov<!ntlf
pcrfor111a11c
c
will
/Jt'
m11inlainr ·d
or imJ}rov
c
cl.
ALTEC.
1515 S. Manchester Ave., Anaheim, Calif. 92803
42-0
2-
041977-0
7
SOUND
PRODUCTS
DIVISION
Lithe
in US
A
CP-875-2
.SK
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