Z-Systems z-qualizer - Manual (Page 3)

z-Qualizer manual Z-Systems Audio Engineering
3
L +00.0 1K00
Here you can display and adjust the left channel shelf independently. Similarly, turn
the left knob to the R position and adjust the right channel. If you then return to ste-
reo-linked mode, the L and R filters retain their settings until you change a parameter
in S mode. For example, if the L and R gains are different for the low shelving filter, if
you return to stereo-linked mode and adjust the gain, it gets copied to both the L and
R filters.
Important: You will notice that the “L” indicator in the display is blinking. This is to
remind you that the z-Qualizer is in dual-mono mode. The same is true for the “R”
when you are adjusting the right-channel parameters.
The other bands:
The high-shelf filter is accessed by turning the right knob one click clockwise from the
gain position, and performs exactly as above for stereo-linked or dual-mono equaliza-
tion. The freq knob controls the frequency above which action occurs.
The four bell-shaped parametrics are numbered as 1, 2, 3, and 4 on the right knob.
Turn the right knob to any of these positions and you will see:
S -00.0 1K00 0.4
This indicates, in order, stereo-linked or dual-mono mode, boost/cut, center fre-
quency, and quality factor, or Q. As always, the label is above its corresponding knob,
and as above, turning the left knob to L and R will allow you to control the left or right
channel separately. Q is the inverse of bandwidth. It is the product of center fre-
quency divided by the 3 dB down bandwidth. Thus, a Q of 0.4 produces an extremely
wide curve and will be rarely used. A Q of 0.6 or 0.7 corresponds with the bandwidth
of a typical midrange EQ in an analog equalizer.
M/S & Dither
Dither
Turn the left knob to m-s & dither, The alphanumeric display will appear as follows:
24 un ENC:N DEC:N
As in all z-Qualizer menus, the labels appear above the knob which affects the pa-
rameter. For example, in this menu, you can change the wordlength and dither by ro-
tating the left knob to any of the following: