Bose Direct / Reflecting 901 Series 4 - Manual (Page 13)

If you wish to play your tape recorder without using the
equalizer (for conventional speakers or headphones) and your
control amplifier has two tape monitor circuits, an additional
connection procedure is required:
1. Connect ‘’Y” connectors to both channels at the tape out­
put connections of your tape recorder.
2. Connect one side of each “Y” connector as described in
Steps 2 and 3 of "Connecting Your Tape Recorder."
3. With the remaining output from each channel "Y" connec­
tor. connect cables to the unused tape monitor input con­
nections of Tape Monitor 2 found on your control amplifier.
4. To play your tape recorder with your 901 s, place the tape
monitor of your 901 equaiizer in the monitor position (in) us­
ing the TAPE MONITOR 1 circuit.
5. To play your tape recorder with conventional speakers and
headphones, place the TAPE MONITOR 2 switch of your
control amplifier on. Your tape recorder will then be con­
nected directly to your high-fidelity system and will play
without the equalizer.
NOTE: Contact your BOSE dealer concerning the availabili­
ty of "Y" connectors and any further connection advice.
B. CONNECTING HEADPHONES AND CONVENTIONAL
SPEAKERS
It is important to realize that the BOSE Active Equalizer ir
troduces substantial boost in the range below 100 Hz an
above 5.000 Hz to match the power response of the 90
speakers. Consequently, conventional speakers or headphonet
if played with the equaiizer in the circuit, will sound unnaturi
with both treble and bass being emphasized.
MORE IMPORTANTLY. HEADPHONES AND CONVENTIONAL
SPEAKERS MAY ACTUALLY BE DAMAGED IF PLAYED WITI
THE ACTIVE EQUALIZER IN THE CIRCUIT.
For this reason, it is important to switch the Active Equalize
out of the circuit by placing the tape monitor switch of you
control amplifier in the OFF or NORMAL position when playin
conventional speakers or headphones with your high-fidelit
system.
tAny speaker system other than the BOSE III or IV system.
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