Altec 1750a manual

Page 2

Input:

SPECIFICATIONS (continued)

(reference 0 dBv = 0.775 Vrms)

Type:
Impedance:

Nominal level:

Maximum Level:

Electronically balanced.
30 kohms balanced.

15 kohms unbalanced.
0 dBv (0.775 Vrms).
+24 dBv (12.3 Vrms)

Power requirements:
AC:

DC:

Operating Temperature

100, 120, 200, 220, 240 Vac, 50/60 Hz,
10 Watts.

Bipolar 24/28 Vdc at 200 mA (auto-
matic transfer to DC mode if AC power
fails)

Output: Range: Up to 60°C (140°F).
(reference 0 dBm = 0.775 Vrms across 600 ohms)
Type: Electronically balanced. Dimensions:
Impedance: 44 ohms balanced. Height: 3.5 inches (8.9 cm).
22 ohms unbalanced. Width: 19.0 inches (48.3 cm).
Maximum level: +24 dBm. Depth: 9.75 inches (24.8 cm).
High-Pass Filter: Variable low frequency cutoff from Weight:
below 20 Hz to 160 Hz with slope of Net: 10.7 lbs (4.9 kgs).
18 dB per octave. Shipping: 13.2 lbs (6.0 kgs).
Low-Pass Filter: Variable high frequency cutoff from 5 Enclosure: Rack-mount chassis.
kHz to above 20 kHz with slope of 18 18 GA steel main chassis.
dB per octave. 18 GA steel top, sides, rear cover.
3/16 inch (0.5 cm) aluminum front
Controls: 28 slide controls at 1/3 octave ISO panel
center frequencies from 31.5 Hz to
16 kHz, -15 dB cut. Color: Black.
, Gain, High-pass filter and Low-pass
filter controls. Accessories: "1402 Perforated Security Cover.
AC power switch (bypasses 1750A 1555M input isolation Transformer.
when shut off). 1556M Output Isolation Transformer.
conne°tinns= Altec Lansing continually strives to improve its
will: Fem! -3- products and their performance. Therefore, specifica-
Bamer Strip. tions are subject to change without any advance notice.
Output: Male XLR.
Barrier strip.
AC power: lEC power cord receptacle.
DC power: Barrier strip.
Block Diagram of 1750A
INPUT JUMPER W

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