Altec 7120a brochure

Page 1

LANSING

a Mark IV company

7120A

Dual-Channel

Power Amplifier

~|ndependent channel selection for
8/4-ohm and/or 70-volt

- Ultra-quiet and efficient cooling
system

. Interchangeable Input Modules

. Illegal mode protection for mono
output modes

~ Link-able signal processing PCBs
plug directly onto input modules

- Interactive Technology compat-
ihle

Description

The Altec Lansing 7120A dual channel
power amplifier is designed for direct voice-
coil drive and/or 70-volt distributed systems.
Each channel can be independently config-
ured for 70-volt line operation or 8/4-ohm
systems. The two channels can be paralleled
or bridged for driving a single load.

This amplifier features an ultra-quiet, con-
tinuously variable cooling system which
pulls air from front to rear in a directed fash-
ion which focuses the air flow on the criti-
cal components. A removable air filter is
incorporatedinto the front grill allowing easy
access for cleaning or replacement.

The signal input module is removable and
comes standard with both XLR and screw
terminal connectors. Optional signal pro-
cessing PCBs plug directly onto the input
modules. Control module options provide
compatibility and connection to Mark IV
Audios Interactive Technology network,
allowing remote, centralized supervision
and/or control of the amplifier.

Each channel is protected against load shorts,
over temperature and output DC. Front panel
indicators provide a visual display of signal
present. signal clip, and stand by for each
channel, as well as a power on indicator.

Architects' and Engineers'
Specifications

The power amplifier shall be a two rack-
space, dualechanncl amplifier providing 100
watts per channel in dual channel mode. The
amplifier will provide an incorporated means
to independently configure each channel for
either 8/4-ohm loads or 70-volt line opera-
tion.

The amplifier shall have a switchable con-
figuration between dual-channel, parallel
mono and bridged mono mode. The ampli-
fier will also provide a guard against illegal
mode operation with a visual indicator as
well as disabling operation until channel load
configurations correspond to output configu-
ration mode, Bridged mono output mode
shall provide a differential balanced signal
to the speaker load.

The amplifier will incorporate a directed air
flow cooling system utilizing an ultra-quiet
continuously variable cross-flow fan pulling
air from the front and pushing air out the
rear of the amplifier. The unit will provide a
front accessible air filter.

The amplifier shall incorporate interchange-
able signal input modules which provides for
signal processing PCBs to be directly con-
nected to the module without replacement.

Input modules will provide both XLR and
screw terminal connectors in a parallel cir-
cuit. Input module pin-outs shall be pub-
lished information. The amplifier will pro-
vide for optional Interactive Technology con-
trol modules to be used.

The amplifier shall meet the following per-
formance criteria. Rated power in dual chan-
nel mode: 4-ohm = 150 watts, 8-ohm = 100
watts, 70-volt = 100 watts; rated power in
parallel mono mode: 2-ohm = 300 watts, 4-
ohm = 200 watts, 8-ohm = 100 watts, 70-
volt = 200 watts; rated power in bridged
mono mode: 8-ohm = 300 watts, 16-ohm =
200 watts, 70-volt = 200 watts. l40-volt =
200 watts.

The power amplifier shall be 19 inches
(482.6 mm) wide by 16 inches (406.4 mm)
deep by 3.4 inches (88.1 mm) high and weigh
29.75 pounds (13.49 kg).

The power amplifier shall be the ALTEC
LANSING Model 7120A.

Uniform Limited Warranty Statement

Altec Lansing products are guaranteed
against malfunction due to defects in mate-
rials or workmanship for a specified period.
as noted in the individual product-line
statement(s) below, or in the individual prod-
uct data sheet or owners manual, beginning