In this guide you’ll be shown to how ring out the monitors. You can ring out any monitor as long as each monitor you wish to ring out has a graphic EQ on the send to it. In this example we’ll show you how to use the built in 31 band graphic EQ on the SC48. Both this guide and the analogue version use the same principles and techniques.
Patching Monitors:
1. Patch in the monitors as you would regularly.
Because you’ll be using the built in graphic EQ on the SC48 you don’t need to patch into the outboard graphic EQ, just the limiter and amp.
2. Patch in the lead vocalists' microphone to channel 1 (or whichever channel you choose but make sure you remember this later), then point the lead vocal mic at the lead vocalists’ monitor/s.
IMPORTANT: Everyone in the room should be wearing ear protection in from this point onwards.
SC48: Graphic EQ:
1. First click the Aux 1 – 8 button to change the bank of 8 faders on the far right of the console to control the aux masters.
Click the select button above the aux master channel you are working on, in this case it’s aux master 1 and bring the fader up to 0dB.
2. In the Outputs page, click the 31-band Graphic EQ tab. Then click the graphic EQ pop-up menu and choose an available mono or stereo graphic EQ.
3. Next click the button "Send 1 – 2" on the left hand side to channel 1’s rotary control. The button will light green, and text will appear on the display saying Aux 1 level.
Then click down on the rotary pot in order to turn on the aux 1 send. A green light will appear at the bottom of the pot.
Slowly increase the send level to aux 1 until feedback begins to occur.
4. Press the graphic EQ band switch to select one of the two banks of graphic EQ bands, 20 Hz — 630 Hz, 800 Hz — 20kHz. Inputs 1 – 16 are temporarily replaced with frequency fader controls.
5. Start pushing a fader, one at a time, listening for an increase in the feedback volume. If the feedback doesn’t increase then make sure to reset the fader to 0dB, this will makes it easier to locate the frequency of the feedback. Once you’ve found the frequency of the feedback pull that fader down –3dB.
Increase the aux send level till more feedback occurs and repeat the process.
Note: Feedback can often occur in octaves, for example if the main spike is at 1 kHz, there will probably be feedback at 500 Hz and 2 kHz.
6. Continue step 5 until the aux send level is at or above 0dB with the aux master on 0dB. This will provide more than enough level through the monitor before feedback occurs.
Tip: Be careful when ringing out monitors that you aren’t cutting too many frequencies from the signal. If you over cut, then the monitor will sound extremely unnatural for the performer.
Your graphic EQ at the end of ringing out should have a few surgical cuts and not look like a mountain range!
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