Operation Manual
11
Main Channels
9. Selection switch (CD/Phono/Line
This switch allows you to assign the line (57), the phono (58) or
the CD (59) input to channel 1.
10. Selection switch (CD/USB1/Line)
This switch allows you to assign the CD (56), the USB 1 (68) or
the line (55) input to channel 2.
11. Channel VU-meter
This meter is a multi-step LED; respectively the green LEDs show
-30, -20, -15, -10, -7, -4, -2, -1 and 0dB. The yellow LEDs show +1,
+2, +4 and +6dB. The red LEDs show +10dB and +15dB. The
accurate level indication allows you to monitor the output
signal level at anytime, and match with other devices.
lower the gain (20) control if the red LEDs light up.
12. Selection Switch (CD/USB2/Line)
This switch allows you to assign the CD (54), the USB 2 (66) or
the line (53) input to channel 3.
13. Selection Switch (CD / Phono – MP3 / Line)
This switch allows you to assign the CD (52), phono (51)/Built in
MP3 player or the line (50) input to channel channel 4.
14. Gain control
Use this control to match the connected devices optimally to
your Core Mix-4 USB. With the fader and Master fader set to ¾
stroke, Adjust the gain with a loud input signal in such a way
that the red LED’s on the Channel VU-meters (11) do not light
up.
15/16/17. Channel EQ Hi/Mid/Low control
Each channel is fitted with 3-band EQ. The Hi (15), Mid (16)
and Bass (17) bands have their center frequencies fixed at 12
Khz, 1kHz and 80 Hz respectively. All three bands have up to
26dB cut and up to 12 dB boost and have a centre detent for
Fig. 9 “Off”. Turning the Equalizer level control to the right amplifies
the frequency range, turning to the left attenuates the signal.
Minor changes to the equalizer control usually produce the best results. Try to avoid excessive
enhancement of the Mid band.
18. Send Level control
Allows you to adjust the level of the according channel in the send mix.
19. Cue button
The Cue button (pre fade listening) is designed to route the channel input to the monitor section
independent of the individual channel’s volume fader setting. It is possible to assign more than one
channel simultaneously to the Cue bus.
20. Channel fader
Use the faders to control the levels of channel 1-4 in the mastermix.
21. Assign switch
Use this switch to assign a channel to a crossfader side (A or B). In thru position, the channel is not
assigned to the crossfader.