Altec 1431a manual
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Extracted text from altec 1431a manual (Ocr-read)
Page 2
Input:
Type:
Impedance:
Normal level:
Output:
Type:
Impedance:
load Impedance:
Peak Indicator:
Operating Gain:
Available Gain:
High-Pass filter:
Controls:
1431A Specifications (contd)
(Ref. 0 dBv = 0.775 Vrms)
Bectronically balanced
44 k0 balanced
22 k0 unbalanced
0 dBv (0.775 Vrms)
(Ref. 0 dBm = 0.775 Vrms
across 600 0)
Electronically balanced
120 0. balanced
60 0 unbalanced
600 .0. or higher
Red LED +14 dBu (6 dB
before clipping)
DdB
tSdBori-IZdB
Switch selectable with
cutoff below 43 Hz and a
slope of 18 dB per octave.
O 3] center detent slide
controls at 'A-octave
center frequencies from
20 Hz to 20 kHz, selecta-
ble :GdBor: lZdB
boost/cut.
I LEVEL control with cen-
ter detent
O LO-CUT select switch
Connectors:
Input:
Output:
AC Power:
Operating Temperature
Range:
Dimensions:
Height:
\Mdth:
Depth:
Net Weight:
Enclosure:
Accessories:
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Figure 1
:12 dB Control Settings, lndividually Set
ORANGE:6dBor: 12
dB select switch
0 EQ-ON Equalizer ON
select switch
0 AC Power switch
0 Ground-Lilt-Switch
3 Terminal barrier strip
3 Terminal barrier strip
110, 220 Vac 50/60 Hz
18 Watts
Up to 50° C (122° F)
1.73 inches (44 mm)
19.0 inches (483 mm)
9.24 inches (235 mm)
7.0 lbs (3.4 kg)
Rack Mount Chassis (1%-
inch rack space)
(Included)
Power cord, pkg. of mount-
ing screws, pkg. of rubber
feet, decal and fuse for 230
Vac line operation, 1431A
Installation and Operating
Instructions