Architect's and engineer's specification – Altec Lansing 1715C User Manual

Page 6

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CONFIGURING

THE

MAINFRAME

The Mainframe's Inner Workings

USER INSTALLED STRAPS

M8V DC INPUT

1707C/1715C System Block Diagram

ARCHITECT'S and ENGINEER'S SPECIFICATION

The mixer/power amplifier shall have six configurable
ports and be capable of operating from 100,120, 200,
220, or 240 Vac, 50/60 Hz line, or from ±48 VDC.
Each port shall be usable vwth a microphone or other
high level device. The mixer/power amplifier main-
freune shedl include a compressor/limlter, low and
high frequency sheMng equalizers, and a tone
generator capable of producing general purpose and
emergency warning signals.

The power amplifier shall meet the following perfor
mance criteria: Power Output: 75 watts

(1707C) at

less than 0.05% THD from 20 Hz to 20 kHz (8 il direct
output), or 150 watts

(1715C) at less than 0.05% THD

from 20 Hz to 20 kHz (4 il direct output). Frequency
Response: 20 Hz to 20 kHz, ±I dB (direct output).
Source Impedance: 150 ft to 250 ft nominal with a

microphone preamplifier, 600 ft with a bridging
transformer, 150 ft to 600 ft with a line matching
transformer, and greater than 30 kft vwth a tape
preamplifier. Equivalent Input Noise: <-120 dBr with

a low impedance microphone preamplifier. Output
Noise: <-85 dBm (wth all controls off).

The mixer/power amplifier shall be rack mountable
and finished in black. The amplifier’s dimensions
shall be

" (H)

19" (W) x

\2V

” (D) and its net

weight shall be 24.2 lbs.

(1707C), or 30.8 lbs.

(1715C).

The plug-in accessory modules shall be the

1780A/AT

and the

1781A/AT Input modules and the 1783 Une

Output module. The accessory transformers usable

with the modules shall be the

1785A Input Isolation

transformer and the

1786 Output Isolation transform

er. The connector subassemblies shall be the

1791

female XLR,

1792 male XLR, 1793 dual phono, and

the

1794 5-lug screw terminal connector.

The mixer/power amplifier shall be the Altec Lansing
Model

1707C/1715C.

a MARK IV company

P.O. BOX 26105 • OKLAHOMA CITY, OK 73126-0105 • U.S.A. • 405/324-5311 or FAX: 405/324-8981

PRINTED IN U.S.A. 7/92

Revision 1

42-07-029244

This manual is related to the following products:

1707C