Owner's Manual

8
General Operating Instructions
1. Connect the AC power cord to a 120 Volt AC grounded power outlet (220 to 240 Volts
in export units).
2. Turn the MAIN and MON master controls to 0 initially, then switch on the Power.
3. You can connect low-impedance microphones to the 3-pin XLR type MIC inputs.
4. Connect high-impedance mics or mono line-level signal sources (mixer line outputs,
keyboards etc.), to the ¼-inch balanced LINE IN jacks on channels 1-4, 7/8 and 9/10.
Connecting more than one signal source to both XLR and ¼-inch inputs is not recom-
mended; this includes stereo sources (if you try to connect a stereo source to a mono
channel using a Y-adapter, you may get distortion). The ¼-inch channels 5 and 6 are
optimized for musical instruments and are not balanced.
5. Connect stereo sources (CD players, tape decks, stereo keyboards etc.) to chan-
nels 7/8 or 9/10 via the stereo ¼-inch balanced LINE IN type inputs. Once again,
connect only one signal source per channel, and use shielded patch cords for all
pre-amp connections. If a monitor send or EFX send is not required use the Tape/CD
input for your stereo source.
6a. Use 18-gauge (or heavier) speaker cables, using shielded patch cords to connect speakers
will waste power by heating up. Connect one or two 8-ohm PA speakers to the SPEAKER
outputs on the rear panel.
Note: To deliver maximum power to a pair of 4-ohm PA speakers, connect only one
speaker to each amplifier.
6b. If you are using a separate power amplifier for the stage monitor speakers, connect
the main speakers (as in #6, above) and run a shielded patch cord from the Pre-EQ or
Post-EQ Out jack to the input of the monitor power amp. If you are using a separate
graphic equalizer for the monitors run a shielded patch cord from the Pre-EQ or Post-
EQ Out OUT jack to the input of the EQ. Then, another one from the EQ’s output to the
input of the monitor power amp.
7. Position your main PA speakers at the front of the stage, pointing directly at the audi-
ence. Position your monitor speakers on the stage floor; preferably to one side of the
mic stands, pointing up at the performer. Try to use cardioid or uni-directional mics to
help reduce the threat of feedback through the monitors (avoid having the back of the
mic pointing directly at the speakers).
8. During a sound check and with the band playing, make the following control adjustments:
i. On mono channels, you need to set the TRIM appropriately. To set the TRIM, first
turn the channel LEVEL control down, with a normal signal (present at the input)
adjust the TRIM control until the green LED flashes only during the peaks in signal.
Now you can use the LEVEL control to set the channel volume level.
ii. Set the channel Lo, Mid, and Hi EQ controls at center. Set the channel LEVEL,
MON, and EFX controls to seven. The Graphic EQ sliders and rotary shelving con-
trols should be set at the center position at this point as well.
iii. Turn the MAIN and MON Master controls up to give the desired volume, the MAIN
EFX return to around 7. Effects in the monitors tend to increase the possibility of
feedback so if the band insists, set the MON EFX return to 5.
iv. Adjust the channel MON control/s to give each performer the desired volume levels.
Use the MON master control to adjust the overall monitor level.
v. Use the channel LEVEL control/s to balance each channel’s volume level through
the main PA speakers.
vi. Turn up the EFX controls on those channels requiring the selected Digital Effect. Typically,
the lead and harmony vocal channels would be good candidates for effects. Reverb can be
used on other channels or on recorded music, but should be used sparingly.
Keep the Main Speakers
between mics and audience
to minimize feedback
DO NOT place Main
Speakers in back of
the stage!!