Bose 901 Series III - Manual (Page 10)

Installation
C. CONNECTING THE EQUALIZER
IT IS MOST IMPORTANT THAT YOU FOLLOW THESE IN­
STRUCTIONS FOR OPTIMUM PERFORMANCE OF YOUR
901 SERIES III SPEAKER SYSTEM
1. UsingtheTapeMonitorCircuit
The connection methods described in this section can be
used with virtually all integrated amplifiers, preamplifiers, and
receivers ^ Using the tape monitor circuil has two advantages;
When using conventional loudspeakers or headphones, the
tape monitor circuit allows disconnection of the Active Equal­
izer by turning off the tape monitor switch on your control am­
plifier; this is important because conventional speakers and
headphones should not be used with the Active Equalizer
(See SECTION V.) Also, optimum system noise performance
is obtained when connecting the equalizer in the tape moni­
tor circuitry
When using this procedure, you should realize that the 901
equalizer is being connected to your equipment as if it were a
tape recorder, using the tape monitor connections of your
control amplifier.
NOTE: Check your control equipment to determine if your
unit has any additional switching flexibility. Some recently in­
troduced units now feature switching facilities called Tape
Monitor 3. External Equalizer/Processing. or Noise Reduc­
tion Connections. The equalizer can be connected to these
terminals allowing greater system flexibility if required.
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Referring to FIGURE 4. connect the Active Equalizer ac­
cording to the following instructions;
a. Turn off all power to your high-fidelity system,
b If you have a tape recorder, disconnect it from your con­
trol amplifier.
(Instructions in SECTION V will tell you how to reconnect
your tape recorder to the system after the equalizer has
been installed.)
c. Using one of the cables supplied with the equalizer, con­
nect the LEFT channel OUTPUT of the equalizer to the
LEFT or ”A" channel of the tape monitor circuit of your
control amplifier (This terminal may also be labeled
PLAYBACK or TAPE IN )
d Connect the RIGHT channel OUTPUT of the equalizer to
the RIGHT or "B” channel tape monitor connection of
your control amplifier.
e Connect the LEFT channel INPUT terminal of the equal­
izer to the LEFT or "A * channel TAPE RECORD connec­
tion of your control amplifier. (This terminal may also be
labeled TAPE OUT or REC OUT)
f Connect the RIGHT channel INPUT connection to the
RIGHT or ’ B* channel TAPE RECORD connection of
your control amplifier.
g Plug the ac power cord of the equalizer into a "switched”
ac outlet on your control amplifier so that the equalizer
will automatically be turned on or off with the power
switch of your equipment.
If the preceding slops are unclear, it may be due to the differ­
ent nomenclature used by various manufacturers of amplify­
ing equipment. Consult your control amplifier's instruction
manual and refer to the section describing the connection
of a tape recorder. Remember, the equalizer is connected
just like a tape recorder
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