Europort EPA900, Руководство пользователя

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EUROPORT EPA900 User Manual
LEFT (L) / RIGHT (R)
Via these connectors, you can connect stereo line-level sources (e.g., keyboard,
CD player, external mixers, notebook sound card). Either the cinch jacks or the
¼" jacks can be used, but not both at the same time.
VOICE CANCELLER (Channel 7/8)
The VOICE CANCELLER function enables voice to be filtered out of stereo signals.
This function is useful for karaoke applications with a player (CD/MP3 player, etc.).
3.3 Channel strips
Each channel strip is equipped with an equalizer section, an effects control,
and one control each for signal routing and volume control.
Fig. 3.3: Channel strip for a mono channel
TREBLE/BASS
The equalizer section comprises these two controls. With the TREBLE control,
you can modify the high frequencies, and with the BASS control the low
frequencies. Rotate the control knob:
• clockwise to boost the frequency range by max. 15 dB.
• counterclockwise to cut the frequency range by max. 15 dB.
◊
If you use the equalizer section to boost frequencies, the signal level of
the channel increases. If the CLIP LED lights up, you need to reduce the
level using the corresponding LEVEL control.
EFFECTS
With the EFFECTS control, you can specify the portion of the channel signal
to be routed to the effects unit. The further clockwise you turn the control
knob, the greater the effect that is applied to the signal. Turning the knob
counterclockwise as far as possible results in a signal with no effects.
BAL
Use the BAL control of the mono channels to adjust the position of the signal
within the stereo image (left/right) or for both mono paths. Turn the control:
• completely to the left to hear the signal only on the left side, that is the
LEFT/MAIN path.
•
completely to the right to hear the signal only on the right side, that is the
RIGHT/MAIN path.
Positions between these settings will result in a proportionate signal allocation
between LEFT/MAIN and RIGHT/MAIN.
The BAL control determines the levels of a stereo source’s left and right input
signals in relation to each other. Turn the control:
• completely to the left to hear only the left signal component of the stereo
source on the LEFT/MAIN path.
• completely to the right to hear only the right signal component of the stereo
source on the RIGHT/MAIN path.
Positions between these settings will result in a proportionate signal allocation
of the left/right signal component between LEFT/MAIN and RIGHT/MAIN.
CLIP
When lit up, the CLIP LED indicates that the corresponding channel is being
overdriven. If this LED lights up regularly, you need to reduce the level of the
respective channel using the LEVEL control and/or the PAD switch.
LEVEL
The LEVEL control is used to set the volume of the channel signal. If the CLIP LED
is lit up, the level has to be reduced using this control.
3.4 Additional connections
The EPA900 is equipped with additional inputs and outputs as well as a
footswitch connector.
Fig. 3.4: Connectors for additional devices
STEREO AUX IN
The STEREO AUX IN sockets are designed as separate ¼" jacks and as a stereo
minijack. You can connect additional devices with adjustable line levels
(e.g., other mixers, MD player) here. The signal is sent directly to the output
busses, with no further adjustment possible. Use either the minijack or the
two ¼" jacks, not both types at the same time. For mono sources, use the
LEFT connector.
EFFECTS FOOTSW
The EFFECTS FOOTSW socket is used to connect a footswitch. You can switch the
effect on and off with the foot switch.
SUB OUT
You can connect an active subwoofer to the SUB OUT socket.
TAPE OUT
You can connect a 2-track recorder (DAT, MD, etc.) to the TAPE OUT sockets.
The two TAPE OUTs carry the output bus signals.