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.....
.i,.
!
NORMAL INPUTS
i
cc
w
N
::;
..:
BAL IN-1
:,
0
J201
w
~
,:
CJ
:,
0
0:
,:
BAL IN-2
~
J202
"' ~
....
:,
0.
....
:,
0
BAL IN-3
w
J203
....
0
Go)
"'
z
0
u
::;;
BAL IN-4
0
fl:
J204
0
..
UNBAL
IN/OUT-1
UNBAL
IN/OUT-2
UNBAL
IN/OUT-3
UNBAL
IN/OUT-4
MON.1
mon. 2
J
I I I I
4
INPUT MODULE JACK (J506)
LEFT DRIVER MODULE JACK (J505)
,---7
(D
lL
,------
S1
J
BOO
!
7
21~
I~
-
~=--f-_;;:-➔ )7)•'"11 , ~
I
(
(
I
("
•(I~
SPECIAL
INPUT/OUTPUT
J213
J214
J215
J216
T
R
T
R
T
R
T
R
I
s_l~
6,1~
I
7,
{!--
I
a,~
I
L
MF
I
LF
11
10
11
Y,o
~
I
N/C
ALTEC-2251
I
19
81-AMP/TRI-AMf_J
DRIVER CARD
-------
Ys
RIGHT DRIVER MODULE JACK (J504)
,------
7
S103
S101
S201
S202
l
r
L
N/C
N/C
N/C
N/C
I
I
1
2
I
11
I
10
I
9
ALTEC-225~
I
~
~
~
-.j,,
2-CHANNEL
DRIVER CAR£._j
-
--
--
--
---------
12
11
10
Figure 21. Triamplified Configuration and Two Full Range Channels
J
1 TO 8
MODEL 2275
POWER
AMPLIFIERS
75WATT/160R
BOHM
OUTPUTS
Two balanced inputs drive two
independent
power amplifier
modules. One balanced input
is configured into a triamplified
system. LF channel (crossover
at 800 Hz) drives four parallel
power amplifier modules. MF
channel (crossover at 5000 Hz)
drives
one
power
amplifier
module. HF channel drives one
power amplifier module.
J
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