2
Connections and Care of the
Product
Connections
1. Connect this equipment only to the type of AC
power source as marked on the unit.
2. Always route AC power cords so that they are
not likely to be walked on, or tripped over, or where
they may be pinched by items placed on or against
them. Always pay particular attention to cords at
plugs and/or convenience receptacles and at the
point where they exit from the product.
3. Do not defeat the inherent design features of the
polarized plug. Non polarized line cord adapters
will defeat the safety provided by the polarized AC
plug. If the plug should fail to fit please contact
your electrician to replace your obsolete outlet. Do
not defeat the safety purpose of the grounding- type
plug. If you use this product in a country which
only has two slotted receptacles in the house, you
must use a three-pin adapter plug to earth ground
the “E” (earth pin) of the power cord connected to
this product.
4. Do not overload wall outlets, extension or inte-
gral convenience receptacles as this could result in
a risk of fire or shock.
Care of the Product
1. Clean the product by dusting with a dry cloth.
2. Do not permit objects of any kind to be pushed
and/or fall into the product through the enclosure
openings
General Description
The Model 2/100A has been designed to work
as both an ‘Interrupter’ in an existing system and
as regular power amplifier to drive up to two pairs
of 8 ohm speakers or one pair of 4 ohm speakers.
The amplifier can be configured in a ‘bridged/
mono’ mode by simply changing the ‘slide’ switch.
The 2/100A features auto-turn-on and turn-off func-
tions which can be activated by an audio or video
signal or by a +12VDC trigger. Turn-off time is
adjustable and the function can be defeated should
there be a desire to do so.
Configured as an “Interrupter”
This feature is best described with an example.
Assume that you have bought a new TV set or com-
puter and you want to integrate it with your exist-
ing stereo system so as to allow the TV or com-
puter sound to come out of your existing
speakers...well the the 2/100A is designed to do
just that!
To install the 2/100A with your existing system,
disconnect the speaker cables from your left and
right speakers and reconnect them... red to “+”,
black to “-”, right to ‘R’ channel and left to ‘L’
channel to the connector marked “From Ext. Amp”
on the panel of 2/100A. Now connect your TV or
computer ‘Line Output’ to the ‘Line Input’ of the
2/100A. If your TV does not have a ‘Line Output’
use the T/V’s ‘Speaker Output’ and connect it to
the terminal marked ‘Speaker Level Input’ on the
panel of the 2/100A.
You will then need to prepare two ‘New’ sets of
speaker cables. Connect one end of the cable to
either set of the speaker output terminals which
are marked ‘To Speakers A’ or ‘To Speakers B’.
Finally, connect the other end of the cables to your
speakers taking care to connect them correctly.
Connect the power cord to the 2/100A and turn on
the power switch and you are ready to play. Now,
when the TV or computer is turned on the audio or
video signal that is fed to the 2/100A will auto-
matically switch off the speakers from the existing
power amplifier and allow the 2/100A to power
them instead. Conversely, when you switch off
the TV/ or computer the 2/100A will lose its signal
and will enter a ‘Standby’ or ‘Sleep’ mode and au-
tomatically reconnect the speakers to your exist-
ing amplifier. You can see, therefore, that the 2/
100A is in fact functioning as an INTERRUPTER
in your system.
Configured as a Regular Stereo
Amplifier
Volume Control
Two separate control knobs are provided for left
and right volume control. When functioning under
bridge-mono mode, only the right volume control
is used for volume adjustment.
Stereo / Bridged Mode
A switch allows you to set 2/100A in either stereo
(ST) or Bridge (BRGD) mode function. Under
bridged mode, both L and R inputs are summed
