Auto Equalization - Yamaha EQ-1100 Owner's Manual

■ MEMORY FACILITY
The unit is provided with four user memories that can be
rewritten by the user, with three fixed memories that
cannot be modified by the user, and with one auto
equalization memory.
• USER MEMORIES
Memories 1 to 4 can store four sets of left and right
equalizer curves.
• FIXED MEMORIES
Memories 5 to 7 stores the factory-set equalizer curves
that were designed for optimum reproduction of different
types of music. Each curve can be recalled by just
pressing a button.
(New, user-set equalizer curves cannot be stored under
these buttons.)
Memory 5 (VOCAL): The level of 2 kHz is enhanced by 4
dB, that of 4 kHz enhanced by 2 dB, and that of 480 Hz
is attenuated by 4 dB. This enhances the vocal sound,
providing a crisp sound.
Memory 6 (FUSION): The levels of 60 Hz, 120 Hz,
4kHz
and 8 kHz are slightly enhanced to make the sound
sharper and refreshing.
Memory 7 (DISCO): The levels of 60 Hz and 120 Hz are
enhanced for more powerful bass and bass drum
sound, while the levels from 4 kHz to 16 kHz are also
enhanced for steady high tones.
• AUTO EQUALIZATION MEMORY
In ROOM EQ memory, the result of auto equalization is
stored automatically.
OPERATIONS

■ AUTO EQUALIZATION

1. Connect the microphone supplied as an accessory and
set the microphone's switch to ON.
Place the microphone to the position and height where
your ears will be when listening to your stereo.
NOTES
• Use only the provided microphone.
Do not use another microphone, or the auto
equalization could be incorrect.
• When using the microphone, never grasp it with
hands. Doing so may produce hum noise. Always
use the supplied microphone stand.
2. Set the EQ button to ON.
3. Press the RIGHT or LEFT channel button.
4. Set the PINK NOISE button to ON.
5. Press the ANALYZER DISPLAY button.
6. Adjust the amplifier's volume control so that the
spectrum from 30 Hz to 16 kHz comes to the center of
the display.
The acoustic characteristic of the listening room varies
largely depending on the listening position and the
arrangement of furniture and listening equipment.
Before starting auto equalization, make the room's
acoustic characteristic as flat as possible by arranging
the positions of the speakers, furniture, etc.
NOTE
Do not set the amplifier level too low, or auto
equalization will not start or end and, even if it is
performed, the result is not always reliable.
7. Press the AUTO ROOM EQ button.
The ROOM EQ indicator will light, and the auto
equalization operation for the listening room
characteristic for the left channel starts. After the left
channel, the right channel is equalized, and the
equalization operations are repeated up to 16 times for
each channel, lasting about 50 seconds.
The EQ button is turned ON automatically when the
auto equalization starts.
During auto equalization, all button operations, except
for the POWER switch and AUTO ROOM EQ button,
are not accepted.
8. When auto equalization ends, the adjusted equalizer
level is stored automatically in the memory of the
ROOM EQ preset memory button. The EQ button
remains ON, other buttons return to the conditions
before the equalization operation, and the ROOM EQ
indicator lights continuously.
* The auto equalization can adjust the levels of
frequencies from 60 Hz to 16 kHz. (The 30 Hz level is set
to 0 dB.)
* To stop auto equalization in the middle of the operation,
press the AUTO ROOM EQ button (to OFF).
■ CHECKING AUTO EQUALIZATION
1. Connect the microphone supplied as an accessory and
set the microphone's switch to ON.
2. Press the PINK NOISE button.
3. Press the EQ button to ON, then press the ROOM EQ
preset memory button. The frequency characteristic
after equalization will be displayed.
4. Pressing the EQ button ON and OFF alternates the
frequency characteristics before and after equalization.
* After confirmation, be sure to press the PINK NOISE
button to OFF.
Normally, the attenuation of high frequencies is larger than
for low frequencies, so the characteristic after equalization
tends to include enhanced high frequencies. If you find
that the sound after equalization is too brilliant, manually
attenuate the equalizer levels of 2 kHz and more.