Toa AT-025 User manual

VOLUME CONTROL ATTENUATOR
1. GENERAL DESCRIPTION
TOA’
s volume control attenuators pro
available in 25W
or 100W models with a Decora
for applications that require emer ency and pa in si nals to bypass/override the attenuator. AT
linear taper control for sin le-
point remote level adjustment of volta e controlled amplifiers
M-900MK2, A-900MK2, M-9000M2, A-
9000M2, A
2. WIRING DIAGRAMS
AT-025 / AT-100
AT-100EMG
AT-10K
INPUT
Speaker line
(25V, 70V, or 100V)
from amplifier
INPUT
Speaker line
(25V, 70V, or 100V)
from amplifier
Schema ic
IN CTRL COM
10Kohm Linear Taper Po en iome er
INSTALLATION MANUAL
VOLUME CONTROL ATTENUATOR
s volume control attenuators pro
vide precise level adjustment to
sin le or multiple speaker lines. They
or 100W models with a Decora
-style wall plate. AT-
100EMG is equipped
for applications that require emer ency and pa in si nals to bypass/override the attenuator. AT
point remote level adjustment of volta e controlled amplifiers
9000M2, A
-700, BG-2000, BA-200, AV-20D
series mixer
INPUT
Speaker line
(25V, 70V, or 100V)
from amplifier
INPUT
Speaker line
(25V, 70V, or 100V)
from amplifier
OUTPUT
To speaker(s) with transformer(s)
OUTPUT
To speaker(s) with transformer(s)
To switched 24VDC source
(class 2 wirin )
10Kohm Linear Taper Po en iome er
Typical Hook-up
IN
CTRL
COM
+V Ou pu
Con rol Inpu
Gnd, Com, or
INSTALLATION MANUAL
sin le or multiple speaker lines. They
are
100EMG is equipped
with a 24VDC@15mA relay
for applications that require emer ency and pa in si nals to bypass/override the attenuator. AT
-10K is a 10k ohm
point remote level adjustment of volta e controlled amplifiers
such as TOA’s
series mixer
s/amplifiers.
AT
-
025
AT-100
AT-100EMG
AT-10K
OUT
PUT
To speaker(s)
with transformer(s)
OUTPUT
To speaker(s)
with transformer(s)
+V Ou pu
Con rol Inpu
Gnd, Com, or
Amplifier /
VCA Module

3. SPECIFICATIONS
Model AT-025
Input Capacity 25W
Attenuation
13 steps (0dB,
Wire Capacity
Priority Relay -
Finish
Dimensions Plate Width 2.75
”
Plate Hei ht 4.5”
A: 1.75”
B: 2.5”
C: 1.875”
AT-025 / AT-100 /
AT
AT-100 AT-
100EMG
100W 100W
13 steps (0dB,
-3dB, -6dB, -9dB, -12dB, -15dB, -18dB,
-21dB, -24dB, -27dB, -30dB, -33dB, OFF)
14- au e
-
24VDC@15mA
White plate & sub-plate / Decora-style
”
Plate Width 2.75”
Plate Hei ht 4.5”
A: 1.812”
B: 2.5”
C: 1.875”
Plate Width 2.75
Plate Hei ht 4.5
”
A: 2.125”
B: 2.5”
C: 1.875”
AT
-100EMG
AT
1.25”
100EMG
AT-10K
-
Continuous
10kΩ
24VDC@15mA
-
Plate Width 2.75
”
”
Plate Width 2.75”
Plate Hei ht 4.5”
(see below drawin )
AT
-10K
1.75”
1.0”