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10
Setting Up and Using
the E62i / E31i / E30i
Setting up your E62i, E31i or E30i Graphic Equalizer is a simple procedure which takes
only a few minutes:
1. Remove all packing materials (save them in case of need for future service) and decide
where the unit is to be physically placed—it can be used free-standing or mounted in a
standard 19" rack (the E62i requires two rack spaces, while the E31i and E30i require only
a single rack space).
2. Make sure the power to all mixers and amplifiers in your audio system is off. On the
front panel of the E62i / E31i / E30i, place all ±12 dB, Cut Only and HPF switches to their
out (off) position and set the Level slider(s) to their bottom-most “∞” setting.
3. Set all Equalizer sliders to their flat (“0”) center detented position.
4. The E62i / E31i / E30i can be used either as an “in-line” device, as an insert device (in
conjunction with mixer insert points), or in an effects send-return loop. The illustrations on
pages 12 - 13 show each of these typical configurations. Choose the configuration that is
best for your application and then begin by making the E62i / E31i / E30i input connections,
using either the XLR or 1/4" TRS connectors on the rear panel. WARNING: Both the XLR
and 1/4" TRS inputs should not be connected simultaneously, or loading problems
may result.
5. Next, make the E62i / E31i / E30i output connections, using the XLR or 1/4" TRS
connectors on the rear panel. If required, connections can be made simultaneously to
both.
6. Plug in the supplied AC connector and connect it to any standard AC socket. Because
of the special relay power-on circuitry built into the E62i / E31i / E30i, you can even plug it
into the same power strip that other audio devices (such as a mixing console) are
connected to. You can then turn on all devices at once with the single power strip on-off
switch, without generating speaker “thumps.”
7. Press the rear panel Power switch in order to turn on the E62i / E31i / E30i. The Bypass
LED(s) will light either red or green, depending upon the setting of the front panel Bypass
switch(es). Note that audio signal will be muted for approximately five seconds until the
relay power-on circuitry is activated (at which time you’ll hear a click and the audio signal
will be unmuted).
8. Apply an input signal to the E62i / E31i / E30i at or about 0 dBm (if sending signal from a
mixer output bus, drive the mixer’s output meters at approximately 0 vu). While the input
signal is present, slowly raise the front panel Level slider(s) to their center detented “0”
points. For best signal-to-noise ratio, the Level slider(s) should be at or near the “0” point
during normal operation. However, if the output signal is weak, use the appropriate Level
slider(s) to slightly boost the volume (to a maximum of 6 dB). Conversely, if the signal
causes the front panel Clip LED(s) to light, use the appropriate Level slider(s) to attenuate
volume as necessary. In normal operation, the Clip LED(s) should not light at all; if they do,
use the Level sliders to lower the volume of the output signal so that they do not light at all
(clipping not only sounds awful, it can also damage speakers!).
ENGLISH