®
Owner’s Enjoyment Manual
3. Using a small screwdriver, adjust the “Input Gain”
control on the top of the FOUR.1
i
until the yellow “Over-
load” LED starts to flicker
with the music.
4. Turn off the entire
system and attach the
output RCA’s from the
FOUR.1
i
to the next compo-
nent in line.
5. Turn down the gain control (counter clockwise) on
your amplifiers to the least sensitive setting. This will allow
you to drive a hotter signal into your amplifiers. For more
info on this, ask us for Tech Note 1006.
E. Equalization Adjustment
Stereo Bands:
There are no strict rules to adhere to
when setting the main equalizer controls on the FOUR.1
i
. To
our knowledge, the audio police will not come knocking on
your door in the middle of the night. Common sense says to
use the FOUR.1
i
to make your audio system sound enjoyable.
At the same time don’t attempt to re-invent the laws of
physics by trying to make your speakers and amplifiers
produce things they just won’t do. 150dB of bass from 6"
woofers and 50 watts of power come to mind.
125Hz:
If music in the 60Hz range is considered the
“substance”, then 125Hz can be considered the “texture”.
Although 125 Hz can be quite boomy, it is an essential part of
all music. Use the 125Hz control sparingly, the way a cook
uses a seasoning.
500Hz:
The 500Hz controls the core of music. Male
voices, brass, hollow-body electric guitars and often solo
pianos are in this range. Because there is quite a bit of this
“midrange” in most pop and rock, you’ll probably find
yourself reducing this control more than you will boost it.
12
Figure 9: Input Gain Controls
• Important Tip •
If the OVERLOAD light does not come on, because of the
low output of the source unit, turn the Input Gain to maximum.
Please refer to the manufacturers specifications on input voltage
to determine whether you will need to decrease the “Input Gain”
on the FOUR.1
i
to avoid clipping the next component in line. If
the next component in line is an AudioControl component, there
is no need to re-adjust the “Input Gains”, because they can
handle the hot signal voltage the FOUR.1
i
produces.
