Audioplex TERMINATOR MJ-1 Installation Manual

STEREO MULTIPLE SPEAKER DISTRIBUTION BOX FUNCTION AND HOOK-UP FEATURES:
1. One input (2 stereo pairs or 4 wires), eight sets of wires out. Nine panel mounted connectors supplied.
2. Rear panel mounted push-to-connect terminals will handle 8 to 22 gauge wire on TERMINATOR I
(TM). Five way gold binding posts on TERMINATOR II (TM).
3. More than one pair of wires can be inserted in each connector when using 16 gauge or smaller wire, so
that distribution to more than 8 locations is possible.
4. Universal mounting panel furnished; may be 19" rack, in-wall (16" centers), or free-standing mounted.
5. Built-in switchable impedance protection; can be switched IN or OUT as required. Protection is 3
Ohm 60 Watt resistors in series with each channel when switched IN.
6. Will handle up to 300 Watts audio power (6 Amperes continuous) with protection switched OUT, 180
Watts audio power when switched IN.
7. Left and right channels completely isolated for safe operation with any type amplifier.
8. Size: 19" Wide, 3 1/2" High, 2 1/4" Deep.
The TERMINATOR I (TM) or TERMINATOR II (TM) is designed for use in multi-speaker sound distribution
installations where the speaker wires originate at a common point such as an amplifier or distribution switcher.
Either model TERMINATOR (TM) provides a convenient termination point (usually called a "HOME RUN BOX")
that allows the installer to easily and neatly organize a central speaker wire distribution point.
It is useful with systems where multiple speaker pairs are parallel connected and operated at the same volume
level. In this case impedance protection is probably required, an impedance matching switchbox or transformer
should be used between the amplifier and the TERMINATOR (TM), or the built-in 3 Ohm impedance protection
system switched IN. All speakers connected to the TERMINATOR (TM) are connected in parallel. The 3 Ohm
protection resistors are connected in series between the amplifier and the speakers in each channel when switched
IN.
A more efficient use of the TERMINATOR (TM) can be achieved when used with AUDIOPLEX
TECHNOLOGY(tm) OPTIMATCH (TM) impedance matching attenuators installed in each speaker line. In this
case the impedance matching can be accomplished by appropriately setting the attenuator index mechanisms. This
provides a dual advantage; a fail-safe impedance protection system, and 0 power loss because the built-in protection
system is not needed.
Either way, the TERMINATOR I (TM) or TERMINATOR II (TM) provides a first class touch to any quality
installation.
If connecting more than 2 speaker pairs to the TERMINATOR (TM) output without any external impedance
matching provisions, remember to switch the built-in impedance protection system "IN". If used with properly set
OPTIMATCH (TM) attenuators in each speaker line, leave the impedance protection switch "OUT".
NOTE: If the wires tend to pull loose during final mounting of the assembly, it may help to pull up the connector
tabs slightly, this will form the wires to the contacts and assist in holding them in place.
INSTALLATION MANUAL
TECHNOLOGY
TERMINATOR MJ-1 / MJ-2
STEREO MULTIPLE SPEAKER DISTRIBUTION BOX
1999 - 4/22/99